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Test P: Left Turn Indicator Never/Always On

  1. Turn ignition on. Place multifunction switch in left turn position. If outside left turn signal operates, go to next step. If outside left turn signal does not operate properly, see EXTERIOR LIGHTS wiring diagrams in SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section.
    NOTE: If left turn indicator light is always on, go to step 3).
  2. Turn ignition off. Remove instrument cluster. See INSTRUMENT CLUSTER  in REMOVAL & INSTALLATION. Remove left turn indicator light bulb. Test continuity of bulb. Replace bulb if necessary. Retest system. If bulb is okay, go to next step.
  3. Disconnect instrument cluster connector C270. Turn ignition on. Place multifunction switch in left turn position. Measure voltage between ground and instrument cluster connector C270 terminal No. 8 (Red/Green wire). See Figure - Figure . If voltage alternates between zero and 10 volts, replace instrument cluster printed circuit. See PRINTED CIRCUIT  under REMOVAL & INSTALLATION. Retest system. If voltage does not alternate between zero and 10 volts, repair open or short in Red/Green wire. Retest system.
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