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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Configurable Customer Control System >> Diagnostic Information and Procedures >> Steering Wheel Controls Inoperative >> Component Testing

Component Testing

CAUTION: Refer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the audio steering wheel control switch.
  2. Test for infinite resistance between the 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 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.