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Test No. 3: 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. 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 step  3.
  2. Check clock. See CLOCK  under COMPONENT TESTS. Replace clock as necessary. Retest system operation. If clock is okay, go to next step.
  3. 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, perform appropriate pin voltage test under BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS.
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