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 MANUALSGMC1999FORWARD CONTROL 4.3 W, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER SYSTEM AND WASHER SYSTEMSYSTEM TESTSNOTES
1999 GMC Forward Control 4.3 W, Standard
System Tests: Notes
1999 GMC Forward Control 4.3 W, StandardSECTION Notes
NOTE:
Before performing any SYSTEM TESTS, perform PRELIMINARY INSPECTION
under TROUBLESHOOTING.
SYMPTOM INDEX
| Symptom | Perform Test | |
|---|---|---|
| P32 With Pulse Wiper System | ||
| Wipers All Modes Inoperative | 1 | |
| Wipers Low Or Mist Modes Inoperative | 2 | |
| Wipers High Mode Inoperative | 3 | |
| Wipers Delay Mode Inoperative | 4 | |
| Washers Inoperative | 5 | |
| Washers Always On | 6 | |
| P42 | ||
| Washers Always On | 7 | |
| Wiper All Modes & Washer Inoperative | 8 | |
RENDER: 1.0x
NO RELATED
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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.