LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2014 >> F-150 FX2, 2D Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Steering Column Switches) >> Diagnosis And Testing >> Steering Column Switches >> Pinpoint Tests >> Pinpoint Test E: DTC B1142:29 >> Pinpoint Test E: DTC B1142:29

Pinpoint Test E: DTC B1142:29

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.
  1. E1 CHECK THE IGNITION SWITCH STATE (IGN_SW_STATE) PID 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - BCM.
    • Monitor the IGN_SW_STATE PID while turning the ignition switch through all 4 positions (OFF, ACC, RUN and START).
    • Does the PID match each ignition switch position? 
    • Yes  : GO to  E5.
    • No  : GO to E2.
  2. E2 CHECK THE ACC CIRCUIT FOR AN OPEN OR SHORT TO VOLTAGE 
    • Ignition In ACC.
    • Monitor the IGN_SW_STATE PID with the ignition switch in the ACC position.
    • Does the PID display "Acc"? 
    • Yes  : GO to E3.
    • No  : If the PID displays "Off" or "Unknown", REPAIR circuit CDC33 (VT/GN) for an open. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

      If the PID displays "Run" or "Start", REPAIR circuit CDC34 (WH/OG) (RUN) or CDC35 (BU/WH) (START) for a short to voltage. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  3. E3 CHECK THE RUN CIRCUIT FOR AN OPEN OR SHORT TO VOLTAGE 
    • Ignition ON.
    • Monitor the IGN_SW_STATE PID with the ignition switch in the RUN position.
    • Does the PID display "Run"? 
    • Yes  : GO to E4.
    • No  : If the PID displays "Off" or "Unknown", REPAIR circuit CDC34 (WH/OG) for an open. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

      If the PID displays "Acc" or "Start", REPAIR circuit CDC33 (VT/GN) (ACC) or CDC35 (BU/WH) (START) for a short to voltage. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  4. E4 CHECK THE START CIRCUIT FOR AN OPEN OR SHORT TO VOLTAGE 
    • Monitor the IGN_SW_STATE PID with the ignition switch in the START position.
    • Does the PID display "Start"? 
    • Yes  : GO to E5.
    • No  : If the PID displays "Off" or "Unknown", REPAIR circuit CDC35 (BU/WH) for an open. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

      If the PID displays "Acc" or "Run", REPAIR circuit CDC33 (VT/GN) (ACC) or CDC34 (WH/OG) (RUN) for a short to voltage. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

  5. E5 CHECK FOR CORRECT BCM OPERATION 
    • Disconnect: All BCM Connectors.
    • Check BCM connectors for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect: All BCM Connectors.
    • Make sure the connectors are seated correctly, then carry out a BCM self-test.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new BCM. REFER to MULTIFUNCTION ELECTRONIC MODULES . REPEAT the self-test. TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
scientia non olet · About LEMON Manuals