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Home >> Cadillac >> 2006 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Steering Wheel & Steering Column >> Diagnostic Information and Procedures >> Steering Wheel Controls Inoperative >> Component Testing
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Component Testing

CAUTION: Refer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the suspect audio steering wheel control switch.
  2. Test the switch for infinite resistance between the supply voltage terminal and the signal terminal with the switch in the open position.
    • If less than infinite resistance, replace the switch.
  3. Test resistance values between the supply voltage terminal and the signal terminal with the switch closed in each position and verify readings are approximate to what the schematic reads.
    • If values do not, replace the switch.
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