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Home >> Lexus >> 1999 >> GS 300 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Component Tests >> Rear Lights Warning Light

Rear Lights Warning Light

NOTE: For testing of body control ECU side of rear lights warning light (light failure sensor) circuit, see appropriate BODY CONTROL SYSTEMS article.

Disconnect 12-pin light failure sensor harness connector. See Figure. Using jumper wire, jumper terminal No. 3 of harness connector to ground. Start engine. Ensure rear lights warning light illuminates. If light does not illuminate, check wire harness. See LIGHT FAILURE SENSOR CIRCUIT  under CIRCUIT TESTS. Repair as necessary. If wire harness is okay, check bulb. See BULB CIRCUIT  under CIRCUIT TESTS.

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