SECTION 413-13A: Parking Aid — Audible
2014 Flex Workshop Manual
DIAGNOSIS AND TESTING
Procedure revision date: 05/02/2013

Parking Aid

 

DTC Charts

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.



 Parking Aid Module (PAM) DTC Chart

DTC Description Action
B129C:12 (with active park assist) Left Front Side Sensor: Circuit Short To Battery REFER to Section 413-13C .
B129C:14 (with active park assist) Left Front Side Sensor: Circuit Short To Ground Or Open REFER to Section 413-13C .
B129C:96 (with active park assist) Left Front Side Sensor: Component Internal Failure REFER to Section 413-13C .
B129D:12 (with active park assist) Right Front Side Sensor: Circuit Short To Battery REFER to Section 413-13C .
B129D:14 (with active park assist) Right Front Side Sensor: Circuit Short To Ground Or Open REFER to Section 413-13C .
B129D:96 (with active park assist) Right Front Side Sensor: Component Internal Failure REFER to Section 413-13C .
B1303:11 (with active park assist) Park Assist Switch: Circuit Short To Ground REFER to Section 413-13C .
B1304:68 (with active park assist) Electronic Power Assisted Steering System: Event Information REFER to Section 413-13C .
B1B44:12 Right Rear Outer Sensor: Circuit Short To Battery GO to Pinpoint Test C .
B1B44:14 Right Rear Outer Sensor: Circuit Short To Ground Or Open GO to Pinpoint Test B .
B1B44:96 Right Rear Outer Sensor: Component Internal Failure GO to Pinpoint Test D .
B1B46:12 Right Rear Inner Sensor: Circuit Short To Battery GO to Pinpoint Test C .
B1B46:14 Right Rear Inner Sensor: Circuit Short To Ground Or Open GO to Pinpoint Test B .
B1B46:96 Right Rear Inner Sensor: Component Internal Failure GO to Pinpoint Test D .
B1B48:12 Left Rear Outer Sensor: Circuit Short To Battery GO to Pinpoint Test C .
B1B48:14 Left Rear Outer Sensor: Circuit Short To Ground Or Open GO to Pinpoint Test B .
B1B48:96 Left Rear Outer Sensor: Component Internal Failure GO to Pinpoint Test D .
B1B50:12 Left Rear Inner Sensor: Circuit Short To Battery GO to Pinpoint Test C .
B1B50:14 Left Rear Inner Sensor: Circuit Short To Ground Or Open GO to Pinpoint Test B .
B1B50:96 Left Rear Inner Sensor: Component Internal Failure GO to Pinpoint Test D .
B1B52:12 Rear Sounder-Park Aid: Circuit Short To Battery GO to Pinpoint Test E .
B1B52:14 Rear Sounder-Park Aid: Short To Ground Or Open GO to Pinpoint Test E .
B1B58:11 Rear Sensor Power Circuit: Circuit Short To Ground GO to Pinpoint Test F .
U0100:00 (with active park assist) Lost Communication With ECM/PCM "A": No Sub Type Information REFER to Section 413-13C .
U0121:00 (with active park assist) Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information REFER to Section 413-13C .
U0131:00 (with active park assist) Lost Communication With Power Steering Control Module: No Sub Type Information REFER to Section 413-13C .
U0140:00 (with active park assist) Lost Communication With Body Control Module: No Sub Type Information REFER to Section 413-13C .
U0155:00 (with active park assist) Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information REFER to Section 413-13C .
U0212:00 (with active park assist) Lost Communication With Steering Column Control Module: No Sub Type Information REFER to Section 413-13C .
U0401:00 (with active park assist) Invalid Data Received From ECM/PCM A: No Sub Type Information This DTC sets when the Parking Aid Module (PAM) receives invalid network data from the PCM with a faulted signal data input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network.
U0415:00 (with active park assist) Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: No Sub Type Information This DTC sets when the PAM receives invalid network data from the ABS module with a faulted signal data input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network.
U0420:00 (with active park assist) Invalid Data Received From Power Steering Control Module: No Sub Type Information This DTC sets when the PAM receives invalid network data from the Power Steering Control Module (PSCM) with a faulted signal data input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network.
U0423:00 (with active park assist) Invalid Data Received From Instrument Panel Cluster (IPC) Control Module: No Sub Type Information This DTC sets when the PAM receives invalid network data from the Instrument Panel Cluster (IPC) with a faulted signal data input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network.
U0429:00 (with active park assist) Invalid Data Received From Steering Column Control Module: No Sub Type Information This DTC sets when the PAM receives invalid network data from the SCCM with a faulted signal data input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network.
P1603:55 (without active park assist) EEPROM Malfunction: Not Configured REFER to Section 418-01 .
U2024:41 Control Module Cal-Config Data: General Checksum Failure CLEAR the DTCs. REPEAT the PAM self-test. If DTC U2024:41 is retrieved again, CARRY OUT Programmable Module Installation (PMI). REFER to Section 418-01 . REPEAT the self-test. If DTC U2024:41 is retrieved again, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

 

Symptom Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

 
Symptom Chart
Condition Possible Sources Action
  • A module does not respond to the scan tool.
  • Fuse
  • Wiring, terminals or connectors
  • PAM
  • The parking aid is inoperative/does not operate correctly
  • Refer to the Diagnostic Routine
  • Continuous or intermittent tone when no obstacles or fault codes are present (certain obstacles may not be detected or recognized due to their shape, size or material)
  • Dirty or iced over parking aid sensor(s)
  • CLEAN the rear bumper and sensors with high-pressure water.
    • Parking aid sensor bezel(s) or parking aid sensor(s) locked into the rear bumper incorrectly
    • REMOVE and correctly INSTALL the parking aid sensor(s) and or bezel(s) as necessary.
      • Parking aid sensors are not aligned correctly
      • The audio output does not reduce when the parking aid tone sounds
      • Refer to the Diagnostic Routine
      • The reverse parking aid menu is not available in the Instrument Panel Cluster (IPC) message center and cannot be deactivated
      • A MyKey® is in use
      • VERIFY that a MyKey® is in use.
       

      Pinpoint Tests

       

      Pinpoint Test A: The Parking Aid Is Inoperative/Does Not Operate Correctly

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions

      REFER to Parking Aid System Operation in Parking Aid .

      If a MyKey® restricted key is in use, the parking aid menu is not available in the message center and cannot be deactivated.

       
      PINPOINT TEST A: THE PARKING AID IS INOPERATIVE/DOES NOT OPERATE CORRECTLY
      Test Step Result / Action to Take
        A1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS  
      • Using a scan tool, perform the PAM self-tests.
      • Are any PAM DTCs recorded?
      		Yes
      REFER to DTC Charts in this section.

      No
      GO to A2 .
        A2 CHECK THE PARKING AID SENSORS FOR CORRECT ALIGNMENT  

        NOTE: If the vehicle was in a collision, the parking aid sensors may not be aligned correctly.

        NOTE: The bumper must be clean and free of ice in order to operate correctly.

      • Check the rear bumpers and parking aid sensors for correct alignment and signs of collision damage.
      • Are the bumpers alignment and parking aid sensor alignment correct?
      		Yes
      GO to A3 .

      No
      REALIGN or INSTALL a rear bumper or align sensors. REFER to Section 501-19 . If the vehicle was in a collision, further body work may be required to bring the parking aid sensors into correct alignment.
        A3 CHECK THE MESSAGE CENTER FOR CORRECT OPERATION  
      • Ignition ON.
      • While observing the message center, disable and enable the parking aid system.
      • Does the message center display PARK AID OFF when the parking aid system is disabled, and display PARK AID ON when the parking aid system is enabled?
      		Yes
      GO to A4 .

      No
      REFER to Section 413-01 .
        A4 CHECK FOR CORRECT REVERSE GEAR INPUT  
      • Apply the parking brake.
      • Ignition ON.
      • Select REVERSE.
      • Using a scan tool, view PAM PIDs.
      • Monitor the PAM TRANSGR PID.
      • Does the PID indicate the transmission is in reverse?
      		Yes
      GO to A6 .

      No
      GO to A5 .
        A5 CHECK THE PCM FOR DIGITAL TR SENSOR DTCs  
      • Check the PCM for DTCs P0705, P0706, P0708 and P0709.
      • Are any of these DTCs present?
      		Yes
      REFER to Section 307-01 to continue diagnosis of the digital Transmission Range (TR) sensor.

      No
      INSTALL a new PAM . REFER to Parking Aid Module (PAM) .
        A6 VERIFY THE PAM OPERATION  
      • Test the parking aid system operation.
      • Perform the azimuth system check. Refer to Azimuth System Check .
      • Perform the elevation system check. Refer to Elevation System Check .
      • Does the parking aid system pass at least one of the above system checks?
      		Yes
      GO to A7 .

      No
      GO to A8 .
        A7 MONITOR THE PAM DISTANCE PIDs  
      • Using a scan tool, view PAM PIDs.
      • Monitor the PAM distance PIDs while moving a test object into and out of the azimuth field directly behind each of the sensors:


        • PID Description
        LRI_DIST Left rear inner parking aid sensor distance
        LRO_DIST Left rear outer parking aid sensor distance
        RRI_DIST Right rear inner parking aid sensor distance
        RRO_DIST Right rear outer parking aid sensor distance

      • Do the PID readings correspond to the approximate distance between sensor and test object?
      		Yes
      GO to A8 .

      No
      INSTALL a new sensor(s) for the one in question. REFER to Parking Aid Sensor .
        A8 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test B: DTC B1B44:14, B1B46:14, B1B48:14 Or B1B50:14

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions



       DTC Fault Trigger Conditions

      DTC Description Fault Trigger Conditions
      B1B44:14 Right Rear Outer Sensor: Circuit Short To Ground Or Open A continuous and on-demand DTC that sets when any of the right rear outer parking aid sensor circuits are open or the sensor signal line is shorted to ground.
      B1B46:14 Right Rear Inner Sensor: Circuit Short To Ground Or Open A continuous and on-demand DTC that sets when any of the right rear inner parking aid sensor circuits are open or the sensor signal line is shorted to ground.
      B1B48:14 Left Rear Outer Sensor: Circuit Short To Ground Or Open A continuous and on-demand DTC that sets when any of the left rear outer parking aid sensor circuits are open or the sensor signal line is shorted to ground.
      B1B50:14 Left Rear Inner Sensor: Circuit Short To Ground Or Open A continuous and on-demand DTC that sets when any of the left rear inner parking aid sensor circuits are open or the sensor signal line is shorted to ground.

      Visual Inspection and Diagnostic Pre-checks

      Before disconnecting the PAM or the sensors, verify that the connectors are properly seated and latched.

       
      PINPOINT TEST B: DTC B1B44:14, B1B46:14, B1B48:14 OR B1B50:14

      NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

      Test Step Result / Action to Take
        B1 RETRIEVE THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS  
      • Using a scan tool, perform the PAM self-tests.
      • Are multiple DTCs recorded?
      		Yes
      GO to B2 .

      No
      GO to B3 .
        B2 CHECK THE BUMPER WIRING HARNESS  
      • Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
      • Is the bumper wiring harness OK?
      		Yes
      GO to B3 .

      No
      REPAIR or INSTALL a new bumper wiring harness.
        B3 CHECK THE REAR SENSOR CIRCUITRY FOR OPENS  
      • Ignition OFF.
      • Disconnect: Suspect Parking Aid Sensor C4009, C4010, C4011 and/or C4012.
      • Disconnect: PAM C4014.
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        DTC B1B44:14    
        C4014-9 LMP07 (BU/WH) or (BU) C4011-1 LMP07 (BU/WH)
        C4014-16 VMP17 (YE/OG) C4011-2 VMP17 (YE/OG)
        C4014-12 RMP07 (GN/WH) or (GN) C4011-3 RMP07 (GN/WH)
        DTC B1B46:14    
        C4014-9 LMP07 (BU/WH) or (BU) C4012-1 LMP07 (BU/WH)
        C4014-13 VMP16 (YE/GY) C4012-2 VMP16 (YE/GY)
        C4014-12 RMP07 (GN/WH) or (GN) C4012-3 RMP07 (GN/WH)
        DTC B1B48:14    
        C4014-9 LMP07 (BU/WH) or (BU) C4009-1 LMP07 (BU/WH)
        C4014-15 VMP15 (YE/GN) C4009-2 VMP15 (YE/GN)
        C4014-12 RMP07 (GN/WH) or (GN) C4009-3 RMP07 (GN/WH)
        DTC B1B50:14    
        C4014-9 LMP07 (BU/WH) or (BU) C4010-1 LMP07 (BU/WH)
        C4014-14 VMP14 (WH/OG) C4010-2 VMP14 (WH/OG)
        C4014-12 RMP07 (GN/WH) or (GN) C4010-3 RMP07 (GN/WH)



      • Are the resistances less than 3 ohms?
      		Yes
      GO to B4 .

      No
      REPAIR the circuit in question.
        B4 CHECK THE REAR SENSOR CIRCUITRY FOR SHORTS TO GROUND  
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        DTC B1B44:14    
        C4011-2 VMP17 (YE/OG) — Ground
        DTC B1B46:14    
        C4012-2 VMP16 (YE/GY) — Ground
        DTC B1B48:14    
        C4009-2 VMP15 (YE/GN) — Ground
        DTC B1B50:14    
        C4010-2 VMP14 (WH/OG) — Ground



      • Are the resistances greater than 10,000 ohms?
      		Yes
      If all of the parking aid sensors recorded DTCs, GO to B5 .

      If one or more parking aid sensor(s) recorded DTCs, INSTALL a new sensor(s) for the one in question. REFER to Parking Aid Sensor .

      No
      REPAIR the circuit in question.
        B5 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test C: DTC B1B44:12, B1B46:12, B1B48:12 Or B1B50:12

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions

      The PAM supplies a reference voltage and signal return to rear parking aid sensors. A fault condition occurs when the PAM detects a short to voltage on the parking aid sensor signal circuit.



       DTC Fault Trigger Conditions

      DTC Description Fault Trigger Conditions
      B1B44:12 Right Rear Outer Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets when the right rear outer parking aid sensor signal line is shorted to battery voltage.
      B1B46:12 Right Rear Inner Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets when the right rear inner parking aid sensor signal line is shorted to battery voltage.
      B1B48:12 Left Rear Outer Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets when the left rear outer parking aid sensor signal line is shorted to battery voltage.
      B1B50:12 Left Rear Inner Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets when the left rear inner parking aid sensor signal line is shorted to battery voltage.

      Visual Inspection and Diagnostic Pre-checks

      Before disconnecting the PAM or the sensors, verify that the connectors are properly seated and latched.

       
      PINPOINT TEST C: DTC B1B44:12, B1B46:12, B1B48:12 OR B1B50:12

      NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

      Test Step Result / Action to Take
        C1 RETRIEVE THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS  
      • Using a scan tool, perform the PAM self-tests.
      • Are multiple DTCs recorded?
      		Yes
      GO to C2 .

      No
      GO to C3 .
        C2 CHECK THE BUMPER WIRING HARNESS  
      • Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
      • Is the bumper wiring harness OK?
      		Yes
      GO to C3 .

      No
      REPAIR or INSTALL a new bumper wiring harness.
        C3 CHECK THE REAR SENSOR CIRCUITRY FOR SHORTS TO VOLTAGE  
      • Ignition OFF.
      • Disconnect: Suspect Parking Aid Sensor C4009, C4010, C4011 and/or C4012.
      • Disconnect: PAM C4014.
      • Ignition ON.
      • Measure the voltage between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        DTC B1B44:12    
        C4011-2 VMP17 (YE/OG) — Ground
        DTC B1B46:12    
        C4012-2 VMP16 (YE/GY) — Ground
        DTC B1B48:12    
        C4009-2 VMP15 (YE/GN) — Ground
        DTC B1B50:12    
        C4010-2 VMP14 (WH/OG) — Ground



      • Is any voltage present?
      		Yes
      REPAIR the circuit in question.

      No
      If all sensor DTCs are set, GO to C5 .

      Otherwise, GO to C4 .
        C4 CHECK THE PARKING AID SENSORS  
      • Install a known good parking aid sensor(s) for each of the suspect parking aid sensor(s).
      • Using a scan tool, clear the DTCs. Repeat the self-test.
      • Test the system for normal operation.
      • Is the concern still present?
      		Yes
      GO to C5 .

      No
      If one or more parking aid sensor(s) recorded DTCs, INSTALL a new sensor(s) for the one in question. REFER to Parking Aid Sensor .
        C5 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test D: DTC B1B44:96, B1B46:96, B1B48:96 Or B1B50:96

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions

      Refer to Parking Aid System Operation in Parking Aid .

      The attenuation time for the rear parking aid sensors is the time required for a sensor to detect the distance to an object expressed in milliseconds (ms). A fault condition occurs when the signal or the attenuation time is out of normal range.



       DTC Fault Trigger Conditions

      DTC Description Fault Trigger Conditions
      B1B44:96 Right Rear Outer Sensor: Component Internal Failure A continuous and on-demand DTC that sets when the right rear outer parking aid sensor has internally failed or has an incorrect attenuation time.
      B1B46:96 Right Rear Inner Sensor: Component Internal Failure A continuous and on-demand DTC that sets when the right rear inner parking aid sensor has internally failed or has an incorrect attenuation time.
      B1B48:96 Left Rear Outer Sensor: Component Internal Failure A continuous and on-demand DTC that sets when the left rear outer parking aid sensor has internally failed or has an incorrect attenuation time.
      B1B50:96 Left Rear Inner Sensor: Component Internal Failure A continuous and on-demand DTC that sets when the left rear inner parking aid sensor has internally failed or has an incorrect attenuation time.

       
      PINPOINT TEST D: DTC B1B44:96, B1B46:96, B1B48:96 OR B1B50:96
      Test Step Result / Action to Take
        D1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS  
      • Using a scan tool, perform the PAM self-tests.
      • Are parking aid DTCs other than B1B44:96, B1B46:96, B1B48:96 or B1B50:96 recorded?
      		Yes
      DIAGNOSE the other DTCs first. REFER to DTC Charts in this section.

      No
      GO to D2 .
        D2 CHECK THE PARKING AID SENSOR OPERATION  

        NOTE: Make sure the area around the vehicle is clear of anything that might activate the parking aid system.

      • Clean the bumper and sensors with high-pressure water.
      • Perform the azimuth system check. Refer to Azimuth System Check .
      • Perform the elevation system check. Refer to Elevation System Check .
      • Does the parking aid system pass both system checks?
      		Yes
      The system is operating correctly at this time. The concern may have been caused by a dirty or blocked parking aid sensor.

      No
      GO to D3 .
        D3 INSTALL A KNOWN GOOD SENSOR  
      • Install a known good sensor for the suspect parking aid sensor.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.
      • Is the concern still present?
      		Yes
      GO to D4 .

      No
      INSTALL a new parking aid sensor. REFER to Parking Aid Sensor .
        D4 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test E: DTC B1B52:12 Or DTC B1B52:14

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions



       DTC Fault Trigger Conditions

      DTC Description Fault Trigger Conditions
      B1B52:12 Rear Sounder-Park Aid: Circuit Short To Battery Sets when the sounder circuit is shorted to voltage.
      B1B52:14 Rear Sounder-Park Aid: Circuit Short To Ground Or Open Sets when the sounder circuit is open or shorted to ground.

      Visual Inspection and Diagnostic Pre-checks

      Before disconnecting the PAM or the sensors, verify that the connectors are properly seated and latched.

       
      PINPOINT TEST E: DTC B1B52:12 OR DTC B1B52:14

      NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

      Test Step Result / Action to Take
        E1 CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING  
      • Ignition OFF.
      • Inspect the parking aid speaker connector C4015 for correct latching by pulling on the latched connector.
      • Is the connector latched?
      		Yes
      GO to E2 .

      No
      Correctly latch the connector.
        E2 MEASURE THE PARKING AID SPEAKER RESISTANCE  
      • Disconnect: Rear Parking Aid Speaker C4015.
      • Measure the component side resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4015 pin 2 — C4015 pin 1 —



      • Is the resistance between 40 and 60 ohms?
      		Yes
      If DTC B1B52:14 was recorded, GO to E3 . If DTC B1B52:12 was recorded, GO to E6 .

      No
      INSTALL a new parking aid speaker. REFER to Parking Aid Module (PAM) .
        E3 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR A SHORT TO GROUND  
      • Disconnect: PAM C4014.
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-2 CMP09 (BN/BU) — Ground
        C4014-6 RMP09 (BU/GN) — Ground



      • Are the resistances greater than 10,000 ohms?
      		Yes
      GO to E4 .

      No
      REPAIR the circuit in question.
        E4 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR AN OPEN  
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-2 CMP09 (BN/BU) C4015-2 CMP09 (BN/BU)
        C4014-6 RMP09 (BU/GN) C4015-1 RMP09 (BU/GN)



      • Are the resistances less than 3 ohms?
      		Yes
      GO to E5 .

      No
      REPAIR the circuit in question.
        E5 CHECK THE PARKING AID SPEAKER CIRCUITS FOR A SHORT TO EACH OTHER  
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-2 CMP09 (BN/BU) C4014-6 RMP09 (BU/GN)



      • Is the resistance greater than 10,000 ohms?
      		Yes
      GO to E7 .

      No
      REPAIR the circuits.
        E6 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO VOLTAGE  
      • Disconnect: PAM C4014.
      • Ignition ON.
      • Measure the voltage between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-2 CMP09 (BN/BU) — Ground
        C4014-6 RMP09 (BU/GN) — Ground



      • Is any voltage present?
      		Yes
      REPAIR the circuit in question.

      No
      GO to E7 .
        E7 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test F: DTC B1B58:11

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Refer to Wiring Diagrams Cell 131 , Parking Aid for schematic and connector information.

      Normal Operation and Fault Conditions



       DTC Fault Trigger Conditions

      DTC Description Fault Trigger Conditions
      B1B58:11 Rear Sensors Power Circuit: Circuit Short to Ground Sets when the sensor voltage supply circuit is shorted to ground or to the signal return circuit.

      Visual Inspection and Diagnostic Pre-checks

      Before disconnecting the PAM or the sensors, verify that the connectors are properly seated and latched.

       
      PINPOINT TEST F: DTC B1B58:11

      NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

      Test Step Result / Action to Take
        F1 CHECK THE BUMPER WIRING HARNESS  
      • Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
      • Is the bumper wiring harness OK?
      		Yes
      GO to F2 .

      No
      REPAIR or INSTALL a new bumper wiring harness.
        F2 CHECK THE REAR LH OUTER SENSOR FOR AN INTERNAL SHORT  

        NOTE: It is normal for DTC B1B48:14 to set when carrying out this step. It should be ignored.

      • Ignition OFF.
      • Disconnect: Parking Aid Sensor C4009.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      GO to F3 .

      No
      INSTALL a new rear LH outer parking aid sensor. REFER to Parking Aid Sensor .
        F3 CHECK THE REAR RH OUTER SENSOR FOR AN INTERNAL SHORT  

        NOTE: It is normal for DTC B1B44:14 to set when carrying out this step. It should be ignored.

      • Ignition OFF.
      • Disconnect: Parking Aid Sensor C4011.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      GO to F4 .

      No
      INSTALL a new rear RH outer parking aid sensor. REFER to Parking Aid Sensor .
        F4 CHECK THE REAR LH INNER SENSOR FOR AN INTERNAL SHORT  

        NOTE: It is normal for DTC B1B50:14 to set when carrying out this step. It should be ignored.

      • Ignition OFF.
      • Disconnect: Parking Aid Sensor C4010.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      GO to F5 .

      No
      INSTALL a new rear LH inner parking aid sensor. REFER to Parking Aid Sensor .
        F5 CHECK THE REAR RH INNER SENSOR FOR AN INTERNAL SHORT  

        NOTE: It is normal for DTC B1B46:14 to set when carrying out this step. It should be ignored.

      • Ignition OFF.
      • Disconnect: Parking Aid Sensor C4012.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      For vehicles equipped with active park assist, GO to F6 .

      Otherwise, GO to F8 .



      No
      INSTALL a new rear RH inner parking aid sensor. REFER to Parking Aid Sensor .
        F6 CHECK THE ACTIVE PARK ASSIST SENSOR RIGHT FOR AN INTERNAL SHORT  
      • Ignition OFF.
      • Disconnect: Active Park Assist Sensor Right C1431.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      GO to F7 .

      No
      INSTALL a new active park assist sensor right. REFER to Section 413-13C .
        F7 CHECK THE ACTIVE PARK ASSIST SENSOR LEFT FOR AN INTERNAL SHORT  
      • Ignition OFF.
      • Disconnect: Active Park Assist Sensor Left C1428.
      • Ignition ON.
      • Using a scan tool, clear the DTCs. Repeat the on-demand self-test.
      • Is DTC B1B58:11 still present?
      		Yes
      GO to F8 .

      No
      INSTALL a new active park assist sensor left. REFER to Section 413-13C .
        F8 CHECK THE REAR PARKING AID SENSORS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND  
      • Ignition OFF.
      • Disconnect: PAM C4014.
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-9 LMP07 (BU/WH) or (BU) — Ground



      • Is the resistance greater than 10,000 ohms?
      		Yes
      GO to F9 .

      No
      REPAIR the circuit in question.
        F9 CHECK THE REAR PARKING AID SENSORS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO THE REAR PARKING AID SENSORS GROUND CIRCUIT  
      • Ignition OFF.
      • Measure the resistance between:


        • Positive Lead Negative Lead
        Pin Circuit Pin Circuit
        C4014-12 RMP07 (GN/WH) or (GN) C4014-9 LMP07 (BU/WH) or (BU)



      • Is the resistance greater than 10,000 ohms?
      		Yes
      GO to F10 .

      No
      REPAIR the circuit in question.
        F10 CHECK FOR CORRECT PAM OPERATION  
      • Disconnect and inspect the PAM connector.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the PAM connector. Make sure it seats and latches correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PAM . REFER to Parking Aid Module (PAM) .

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
       

      Pinpoint Test G: The Audio Output Does Not Reduce When The Parking Aid Tone Sounds

      Diagnostic Overview

      Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

      Normal Operation and Fault Conditions

      Refer to Parking Aid Audible Alert in Parking Aid .

       
      PINPOINT TEST G: THE AUDIO OUTPUT DOES NOT REDUCE WHEN THE PARKING AID TONE SOUNDS
      Test Step Result / Action to Take
        G1 CHECK FOR CORRECT PARKING AID SYSTEM OPERATION  
      • Apply the parking brake.
      • Place an object behind the vehicle within the range of the parking aid sensors.
      • Ignition ON.
      • Place the transmission in REVERSE (R).
      • Verify the parking aid tone is sounding and the ACM volume is reduced.
      • Is the parking aid tone sounding and ACM volume reduced?
      		Yes
      The system is operating correctly at this time. The ACM volume cutback may have faulted due to high network traffic or an intermittent fault condition.

      No
      GO to G2 .
        G2 CHECK THE PARKING AID SIGNAL  
      • Apply the parking brake.
      • Place an object behind the vehicle within the range of the parking aid sensors.
      • Ignition ON.
      • Place the transmission in REVERSE (R).
      • Using a scan tool, view ACM PIDs.
      • Monitor the parking aid input status PID (RPA_STAT) while the parking aid tone is sounding.
      • Does the PID read "Enabled" while the parking aid tone is sounding?
      		Yes
      GO to G4 .

      No
      GO to G3 .
        G3 CHECK FOR COMMUNICATION WITH THE PAM  
      • Using a scan tool, perform the network test.
      • Does the scan tool communicate with the PAM ?
      		Yes
      GO to G4 .

      No
      REFER to Section 418-00 to diagnose no communication with the PAM .
        G4 CHECK FOR CORRECT ACM OPERATION  
      • Disconnect and inspect all the ACM connectors.
      • Repair:
        • corrosion (install new connector or terminals - clean module pins)
        • damaged pins - install new terminals/pins
        • pushed-out pins - install new pins as necessary
      • Reconnect the ACM connectors. Make sure they seat and latch correctly.
      • Operate the system and determine if the concern is still present.
      • Is the concern still present?
      		Yes
      CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new ACM . Refer to the appropriate section in Group 415 for the procedure.

      No
      The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.