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Home >> Ford >> 2001 >> Excursion 5.4 L, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 407 (Steering System) >> Diagnosis And Testing >> Steering System >> Connector Reference and Terminal Readings >> PINPOINT TEST A: No Communication With The FEM Module/Unable To Enter Self-Test >> Test Procedure
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Test Procedure

WARNING: This page is about a different car, the 2004 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

  1. A1 - CHECK BJB FUSE 30 (5A)

    • Check BJB fuse 30 (5A).
    • Is the fuse OK? 
      1. Yes  : GO to A2.
      2. No  : INSTALL a new fuse. REPEAT the self-test.

  2. A2 - CHECK THE VOLTAGE TO THE FEM MODULE

    • Key in OFF position.
    • Disconnect: FEM Module C201a.
    • Key in ON position.
    • Measure the voltage between FEM module C201a-1 circuit 29S-DK21 (OG/WH), harness side and ground
    • Is the voltage greater than 10 volts? 
      1. Yes  : GO to A3.
      2. No  : REPAIR circuit 29S-DK21 (OG/WH). REPEAT the self-test.

  3. A3 - CHECK THE RBJB RELAY 32 COIL GROUND

    • Key in OFF position.
    • Measure the resistance between FEM module C201b-21, circuit 31S-DK21 (BK/WH), harness side, and ground.
    • Is the resistance less than 5 ohms? 
      1. Yes  : CHECK the DLC connector and wiring. Refer to MODULE COMMUNICATIONS NETWORK .
      2. No  : REPAIR circuit 31S-DK21 (BK/WH). REPEAT the self-test.
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