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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Four Wheel Drive (4WD) Systems -- F150) >> Diagnosis And Testing >> Four Wheel Drive (4WD) Systems - 2-Speed Torque-On-Demand >> Pinpoint Tests >> Pinpoint Test L: DTC U300D:11 >> Pinpoint Test L: U300D:11

Pinpoint Test L: U300D:11

WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. L1 CHECK THE TCCM IGNITION POSITION (KEY_POS_4X4) AND IGNITION STATUS (KEY_STATUS_4X4) PIDs 
    • Enter the following diagnostic mode on the scan tool: DataLogger - TCCM.
    • Monitor the KEY_POS_4X4 and KEY_STATUS_4X4 PIDs.
    • Do the ignition PIDs match the ignition switch positions? 
      • Yes  : The system is functioning correctly at this time. CLEAR the DTCs. TEST the system for normal operation.
      • No  : If the KEY_STATUS_4X4 PID did not match, CHECK BJB fuse 54 (5A). If the fuse is OK, REPAIR circuit CBB54 (VT/OG). If the fuse is not OK, REFER to the Wiring Diagrams information to identify the possible causes of the circuit short. After the fault is repaired, CLEAR the DTCs. TEST the system for normal operation. If the KEY_POS_4X4 PID did not match, REFER to STEERING COLUMN SWITCHES to diagnose the ignition switch. After the fault is repaired, CLEAR the DTCs. TEST the system for normal operation.
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