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Home >> Ford >> 2011 >> Edge SEL, FWD >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Cluster Illumination And Panel Illumination >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test C: The Steering Wheel Switch(es) Illumination Is Inoperative >> Pinpoint Test C: The Steering Wheel Switch(Es) Illumination Is Inoperative

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

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. C1 CHECK THE OTHER DIMMABLE LIGHTING SWITCHES 
    • Ignition ON.
    • Place the headlamp switch in the PARKING LAMPS ON position.
    • Press and hold the instrument panel dimmer switch up to the full illumination position and observe other dimmable switches.
    • Are all the dimmable steering wheel switches inoperative? 
    • Yes:  GO to PINPOINT TEST A .
    • No:  If all the steering wheel switches illumination is inoperative GO to C2  .

      If only one steering wheel switch illumination is inoperative GO to  C5.

  2. C2 CHECK THE HORN OPERATION 
    • Press the driver airbag module against the steering wheel.
    • Does the horn sound? 
    • Yes:  GO to C3  .
    • No:  REFER to HORN to diagnose the horn is inoperative.
  3. C3 CHECK FOR VOLTAGE TO THE STEERING WHEEL SWITCHES 
    • Place the headlamp switch in the OFF position.
    • Remove the driver air bag module. Refer to SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Clockspring C218B.
    • Ignition ON.
    • Place the headlamp switch in the PARKING LAMPS ON position.
    • Press and hold the instrument panel dimmer switch up to the full illumination position.
    • Measure the voltage between the clockspring C218B-9, component side and the clockspring C218B-10, component side.
      Fig 1: Identifying Measuring Voltage Between Clockspring C218B-9 And Clockspring C218B-10 Connector End View
      G07402401Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  INSTALL a new steering wheel. REFER to STEERING COLUMN . TEST the system for normal operation.
    • No:  GO to C4  .
  4. C4 CHECK FOR VOLTAGE TO THE CLOCKSPRING 
    • Disconnect: Clockspring C218A.
    • Measure the voltage between the clockspring C218A-9, circuit VLN04 (VT/GY), harness side and the clockspring C218A-8, circuit GD115 (BK/GY), harness side.
      Fig 2: Identifying Measuring Voltage Between Clockspring C218A-9 And Clockspring C218A-8 Connector End View
      G07402402Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  INSTALL a new clockspring. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No:  REPAIR circuit VLN04 (VT/GY) for an open. TEST the system for normal operation.
  5. C5 CHECK THE SUSPECT STEERING WHEEL SWITCH FOR VOLTAGE 
    • Remove the driver air bag module. Refer to SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Suspect Steering Wheel Switch.
    • Press and hold the instrument panel dimmer switch up to the full illumination position.
    • Measure the voltage between the inoperative illumination source, harness side as follows:
      CONNECTORS REFERENCE CHART

      Component Connector-Pin Connector-Pin
      Steering wheel switch - LH C2998-10 C2998-5
      Steering wheel switch - RH C2999-6 C2999-1
      Paddle Shift switch - LH (if equipped) C2429-1 C2429-2
      Paddle Shift switch - RH (if equipped) C2428-4 C2428-3
      Fig 3: Identifying Suspect Steering Wheel Switch Connecto Views
      G07402403Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  INSTALL a new component in question. TEST the system for normal operation.
    • No:  INSTALL a new steering wheel. REFER to STEERING COLUMN . TEST the system for normal operation.
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