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Home › Lexus › 2001 › LS 430 › Repair and Diagnosis › Electrical › Gauges › Instrument Panels › System Tests › Bulb Circuit

Bulb Circuit

NOTE: If Lexus hand-held tester is not available, begin testing with step 2).
  1. Connect Lexus hand-held tester to Data Link Connector No. 3 (DLC3). With tester in ACTIVE TEST mode, operate appropriate indicator/warning lights. If light operation is okay, perform next check listed in appropriate symptom diagnosis table. See TROUBLE SHOOTING . If light operation is not okay, go to next step.
  2. Check combination meter 22-pin connector at circuit plate. See Figure. See INSTRUMENT CLUSTER CIRCUIT PLATE  under COMPONENT TESTS. Repair as necessary. If voltages are to specification, replace instrument cluster.
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