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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1320 (Instrument Cluster And Panel Illumination) >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test E: The Steering Wheel Switch(es) Is Inoperative >> Pinpoint Test E: The Steering Wheel Switch(Es) Is Inoperative

Pinpoint Test E: The Steering Wheel Switch(Es) Is Inoperative

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. E1 CHECK CIRCUIT 19 (LB/RD) FOR AN OPEN 
    • Depower the supplemental restraint system (SRS). Refer to SUPPLEMENTAL RESTRAINT SYSTEM article.
    • Disconnect: Clockspring C218b
    • Remove the central junction box (CJB) fuse 36 (5A).
      • Fig 1: Checking Circuit 19 (LB/RD) For An Open
      GF0012778Courtesy of FORD MOTOR CO.
    • Measure the resistance between clockspring C218b-5, circuit 19 (LB/RD), harness side and the CJB fuse 36 (5A) output side.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL the CJB fuse 36 (5A). Go to  E2.
    2. NO  : REPAIR the circuit. INSTALL the CJB fuse 36 (5A). REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
  2. E2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
      Fig 2: Checking Circuit 57 (BK) For An Open
      GF0012779Courtesy of FORD MOTOR CO.
    • Measure the resistance between clockspring C218b-4, circuit 57 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  E3.
    2. NO  : REPAIR the circuit. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
  3. E3 CHECK THE CLOCKSPRING FOR AN OPEN 
    • Remove the driver air bag module. Refer to SUPPLEMENTAL RESTRAINT SYSTEM article.
    • Disconnect the upper clockspring.
      • Fig 3: Measuring Resistance Between Clockspring C218B-5 & Upper Clockspring Connector Pin 6
      GF0044867Courtesy of FORD MOTOR CO.
    • Measure the resistance between the clockspring C218b-5, component side and the upper clockspring connector pin 6, component side.
      • Fig 4: Measuring Resistance Between Clockspring C218B-4 & Upper Clockspring Connector Pin 3
      GF0044868Courtesy of FORD MOTOR CO.
    • Measure the resistance between the clockspring C218b-4, component side and the upper clockspring connector pin 3, component side.
    • Are the resistances less than 5 ohms? 
    1. YES  : INSTALL a new speed control switch. REFER to SPEED CONTROL article. TEST the system for normal operation.
    2. NO  : INSTALL a new clockspring. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
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