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Test L: Charge Warning Indicator Never/Always On

NOTE: If charge system indicator is always on, start test at step 2).
  1. Remove instrument cluster. See INSTRUMENT CLUSTER  in REMOVAL & INSTALLATION. Remove charge system indicator bulb. Test continuity of bulb. Replace bulb if necessary. Retest system. If bulb is okay, go to next step.
  2. Disconnect instrument cluster harness connector C266. See Figure - Figure . Turn ignition on. Measure voltage between ground and instrument cluster connector C266 terminal No. 5 (Black wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open Blue wire between fuse panel and instrument cluster.
  3. Turn ignition off. Disconnect 2-pin generator harness connector. Using a jumper wire, ground Yellow/Black wire at generator harness connector. Turn ignition on. If charge warning indicator glows, repair charging system. See appropriate GENERATOR or STARTER article in the ELECTRICAL section. If charge warning indicator does not glow, go to next step.
  4. Turn ignition off. Disconnect instrument cluster harness connector C266. Remove Black diode strip from diode junction box located behind fuse panel. Measure resistance of Yellow/Blue wire between instrument cluster harness connector C266 terminal No. 4 and diode junction box connector C2011 terminal No. 2. See Figure - Figure . Resistance should be less than 5 ohms. Measure resistance between instrument cluster harness connector C266 terminal No. 4 (Yellow/Blue wire) and ground. Resistance should be more than 10 k/ohms. If resistance measurements are as specified, go to next step. If resistance measurements are not as specified, repair Yellow/Blue wire.
  5. Turn ignition off. Disconnect 2-pin generator harness connector. Remove Black diode strip from diode junction box located behind fuse panel. Measure resistance of Yellow/Black wire between generator harness connector and diode junction box connector C2011 terminal No. 5. Resistance should be less than 5 ohms. Measure resistance between diode junction box connector C2011 terminal No. 5 (Yellow/Black wire) and ground. Resistance should be more than 10 k/ohms. If resistance measurements are as specified, go to next step. If resistance measurements are not as specified, repair Yellow/Black wire.
  6. Using a DVOM in diode check mode, touch ohmmeter positive lead to Black diode strip pin No. 2 (Yellow/Blue wire on mating connector) and negative lead to terminal No. 5 (Yellow/Black wire on mating connector). If continuity exists, replace instrument cluster printed circuit. See PRINTED CIRCUIT  under REMOVAL & INSTALLATION. If continuity does not exist, replace Black diode strip.
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