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Home >> Lexus >> 1999 >> GS 400 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Systems >> Circuit Tests >> Key Unlock Warning Switch Circuit

Key Unlock Warning Switch Circuit

  1. Check key unlock warning switch. See STEERING COLUMN SWITCHES article. Replace switch as necessary. Retest system operation. If switch is okay, go to next step.
  2. Check circuits for faults between key unlock warning switch and body control ECU No. 2. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, go to next test listed in appropriate SYMPTOM DIAGNOSIS table under TROUBLE SHOOTING .
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