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Home >> Lexus >> 1998 >> GS 400 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control System >> Circuit Tests >> Clock Circuit
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Clock Circuit

NOTE: If LEXUS scan tool is available, start test from step 1). If this scan tool is not available, start test from step 2).

  1. Check Clock Using Scan Tool

    Using scan tool, check clock light dimming in ACTIVE TEST. If clock light does not dim, go to next step. If clock light dims, go to next test listed in appropriate TROUBLE SHOOTING SYMPTOMS table.

  2. Check Clock

    Check clock. See CLOCK under COMPONENT TESTS. If clock is okay, go to next step. Replace clock as necessary. Retest system operation.

  3. Check Circuits

    Check circuits for faults between clock, body control ECU No. 2 and battery. 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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