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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2270 (Instrument Cluster And Panel Illumination) >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test D: The Audio System Illumination Is Inoperative >> Pinpoint Test D: The Audio System Illumination Is Inoperative

Pinpoint Test D: The Audio System Illumination 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. D1 CHECK CIRCUIT 19 (LB/RD) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Audio Unit C240
    • Place the headlamp switch in the PARK position and rotate the headlamp switch knob fully counterclockwise without turning on the interior lamps.
      • Fig 1: Checking Circuit 19 (LB/RD) For An Open
      GF0012776Courtesy of FORD MOTOR CO.
    • Measure the voltage between the audio unit C240-1, circuit 19 (LB/RD), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  D2.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  2. D2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
      Fig 2: Checking Circuit 57 (BK) For An Open
      GF0012777Courtesy of FORD MOTOR CO.
    • Measure the resistance between the audio unit C240-2, circuit 57 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new audio unit. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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