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Home >> Ford >> 2009 >> Focus S, Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Cluster Illumination & Instrument Panel Illumination >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test D: The Steering Wheel Control Illumination Is Inoperative >> Pinpoint Test D: The Steering Wheel Control Illumination Is Inoperative

Pinpoint Test D: The Steering Wheel Control Illumination Is Inoperative

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. D1 CHECK THE OTHER DIMMABLE LIGHTING SWITCHES 
    • Key in OFF position.
    • Place the headlamp switch in the PARKING LAMPS ON position.
    • Rotate the instrument panel dimmer switch to the full illumination position and observe other dimmable switches (headlamp switch for example).
    • Are all the dimmable switches inoperative? 
    1. YES  : Go to Pinpoint Test A .
    2. NO  : Go to  D2.
  2. D2 CHECK CIRCUIT VLN04 (VT/GY) FOR AN OPEN 
    • Place the headlamp switch in the OFF position.
    • Depower the supplemental restraint system (SRS). Refer to SUPPLEMENTAL RESTRAINT SYSTEM article.
    • Disconnect: Lower Clockspring C218
    • Connect the battery ground cable.
    • Place the headlamp switch in the PARKING LAMPS ON position.
    • Rotate the instrument panel dimmer switch to the full illumination position.
    • Measure the voltage between the lower clockspring C218-2, circuit VLN04 (VT/GY), harness side and ground.
      • Fig 1: Measuring Voltage Between Lower Clockspring C218-2 And VLN04 (VT/GY)
      GF0043568Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : TURN the headlamp switch off. Go to  D3.
    2. NO  : DISCONNECT the battery ground cable. REPAIR the circuit. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
  3. D3 CHECK CIRCUIT GD134 (BK/VT) FOR AN OPEN 
    • Measure the resistance between the lower clockspring C218-7, circuit GD134 (BK/VT), harness side and ground.
      • Fig 2: Measuring Resistance Between Lower Clockspring C218-7 And GD134 (BK/VT)
      GF0043569Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  D4.
    2. NO  : REPAIR the circuit. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
  4. D4 CHECK THE CLOCKSPRING FOR AN OPEN 
    • Remove the driver air bag module. Refer to SUPPLEMENTAL RESTRAINT SYSTEM article.
    • Disconnect: Upper Clockspring
    • Measure the resistance between the lower clockspring C218 pin 2, component side and the upper clockspring C218 pin 7, component side.
      • Fig 3: Measuring Resistance Between Lower Clockspring C218 Pin 2 And Upper Clockspring C218 Pin 7
      GF0043570Courtesy of FORD MOTOR CO.
    • Measure the resistance between the lower clockspring C218 pin 7, component side and the upper clockspring C218 pin 4, component side.
      • Fig 4: Measuring Resistance Between Lower Clockspring C218 Pin 7 And Upper Clockspring C218 Pin 4
      GF0043571Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  D5.
    2. NO  : INSTALL a new clockspring. INSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
  5. D5 CHECK THE STEERING WHEEL CONTROL SWITCH HARNESS 
    • Disconnect: Steering Wheel Control Switches
    • Inspect the steering wheel switch harness for damage or shorts.
    • Is the steering wheel switch harness OK? 
    1. YES  : INSTALL new steering wheel controls. REFER to SPEED CONTROL article or INFORMATION AND ENTERTAINMENT SYSTEMS article as necessary. INSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
    2. NO  : REPAIR or INSTALL a new steering wheel control switch harness. INSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. TEST the system for normal operation.
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