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Home >> Lexus >> 1998 >> LS 400 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control System >> Circuit Tests >> Key Unlock Warning Switch Circuit

Key Unlock Warning Switch Circuit

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  1. Check Key Unlock Warning Switch

    Check key unlock warning switch. See STEERING COLUMN SWITCHES article. If switch is okay, go to next step. Replace switch as necessary. Retest system operation.

  2. Check Circuits

    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 TROUBLE SHOOTING SYMPTOMS table.
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