LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2023 >> Escape ST-Line Select >> Repair and Diagnosis >> External Pages >> Different car >> Section 899 (Tire Pressure Monitoring System (TPMS)) >> Diagnosis And Testing >> Tire Pressure Monitoring System (TPMS) - Vehicles Without: Keyless Entry and Push Button Start >> Pinpoint Tests >> Pinpoint Test B: B124D:02
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test B: B124D:02

WARNING: This page is about a different car, the 2022 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    REFER to: Tire Pressure Monitoring System (TPMS) - Vehicles Without: Keyless Entry and Push Button Start - System Operation and Component Description 

    Communication between the BCM and the TPMS sensors can be interrupted by RFI, which can cause intermittent issues that are not vehicle concerns. RFI is generated by electrical motors and appliance operation, cellular telephones, remote transmitters, power inverters and portable entertainment equipment.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCM B124D:02 Tire Pressure Sensor: General Signal Failure Set by the BCM in continuous memory when 1, 2 or 3 of the tire pressure sensors are faulted, not communicating or when sensor data is not received by the BCM.

    Possible Sources 

    • RFI
    • One or more TPMS sensors not trained
    • TPMS sensor(s)

    Visual Inspection and Pre-checks 

    • Inspect for customer electronic devices, such as cell phone chargers or GPS units.
    • Inspect for Non-Original Equipment Manufacturer (OEM) wheels or run-flat tires.
    • Verify horn operation.
    • Verify spare tire is not in use.

  2. B1 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.

    • Using a diagnostic scan tool, carry out the BCM self-test.

    Is DTC B1182:00 present? 

    Yes  GO to Pinpoint Test A 
    No  GO to  B2

  3. B2 CHECK THE BCM (BODY CONTROL MODULE) TPMS (TIRE PRESSURE MONITORING SYSTEM) STATUS (TPMS_STATUS) PID (PARAMETER IDENTIFICATION) AND SENSOR IDENTIFIERS

    • Access the BCM and monitor the TPM_S_ID_LFPID

    • Access the BCM and monitor the TPM_S_ID_RFPID

    • Access the BCM and monitor the TPM_S_ID_LROPID

    • Access the BCM and monitor the TPM_S_ID_RROPID

    • View the BCM

      Access the BCM and monitor the TPMS_STATUSPID

    Does the BCM TPMS_STATUS PID display SENSOR FAULT? 

    Yes  GO to  B3
    No  If the TPMS_STATUS PID displays SYSTEM FAULT, GO to Pinpoint Test A 

  4. B3 CARRY OUT THE TPMS (TIRE PRESSURE MONITORING SYSTEM) SENSOR TRAINING PROCEDURE

    Did all of the TPMS sensors train and did the horn sound when each sensor was trained? 

    Yes  Using a diagnostic scan tool, LOCATE the updated TPMS sensor identifiers trained to the BCM. COMPARE these values to those recorded prior to the TPMS sensor training procedure. Disregarding sensor position, any sensor identifiers that do not match those retrieved from the module were changed, but not retrained. The sensors are now trained to the vehicle, diagnosis is complete. DOCUMENT all TPMS sensor identifiers on the applicable warranty claim.
    No  GO to  B4

  5. B4 ATTEMPT TO TRAIN THE TPMS (TIRE PRESSURE MONITORING SYSTEM) SENSORS AGAIN

    Did any of the TPMS sensors train and did the horn sound when each sensor was trained? 

    Yes  If only some of the sensors trained, VERIFY the correct sensors are installed. REFER to: Wheel and Tire If the correct sensors are installed and do not train, INSTALL a new TPMS sensor for each sensor that failed to train. REFER to: Tire Pressure Monitoring System (TPMS) Sensor  If all the sensors trained, the concern may have been caused by RFI. For information on locating sources of RFI, REFER to: Tire Pressure Monitoring System (TPMS) - Vehicles Without: Keyless Entry and Push Button Start - System Operation and Component Description 
    No  GO to  B5

  6. B5 VERIFY ALL WIRING CONNECTIONS

    • Ignition OFF.

    • Disconnect all BCM connectors and related in-line connectors.

    • Using a good light source, inspect the connectors for the following:

      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary

    Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals? 

    Yes  GO to  B6
    No  REPAIR the connector or terminals. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

  7. B6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Connect the BCM connectors and related in-line 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  The sensors may not be present. DISMOUNT the tires and VERIFY the correct sensors are present and mounted to the wheels. REFER to: Wheel and Tire If the sensors are missing, INSTALL new sensors. REFER to: Tire Pressure Monitoring System (TPMS) Sensor  If all the sensors are present and of the correct type, CHECK OASIS for any applicable Technical Service Bulletins (TSBs), GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no TSB exists for the concern, INSTALL a new BCM. REFER to: Body Control Module (BCM)
    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. CLEAR the Diagnostic Trouble Codes (DTCs).
scientia non olet · About LEMON Manuals