Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1993ASTRO VAN PASSENGER EXTENDED, 4.3 ZREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSTEERING COLUMN SWITCHESTESTINGTURN SIGNAL SWITCHBOTH SIDES INOPERATIVE
1993 Chevrolet Astro Van Passenger Extended, 4.3 Z
Both Sides Inoperative
1993 Chevrolet Astro Van Passenger Extended, 4.3 ZSECTION Both Sides Inoperative
- Turn hazard warning system on. If turn signals flash, go to next step. If turn signals do not flash, replace turn signal flasher.
- Turn hazard warning system off. Turn ignition switch to RUN position and place turn signal lever in LEFT TURN position. Connect test light between Purple wire terminal of turn signal switch connector and ground. If test light lights, replace turn signal switch. If test light does not light, check for blown turn signal fuse. If fuse is okay, go to next step. If fuse is blown, replace fuse.
- Connect test light between Purple wire terminal of turn flasher connector and ground. If test light does not light, go to next step. If test light lights, repair open in Purple wire between turn signal switch and turn flasher.
- Connect test light between Dark Blue wire terminal of turn flasher connector and ground. If test light lights, replace turn signal flasher. If test light does not light, repair open in Dark Blue wire between turn flasher and fuse.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.