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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCADILLAC1991SEVILLE STSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER SYSTEM/WASHER SYSTEMTESTINGWIPER PULSE CONTROL RESISTANCE TEST
1991 Cadillac Seville STS
Wiper Pulse Control Resistance Test
1991 Cadillac Seville STSSECTION Wiper Pulse Control Resistance Test
- Perform test with wiper motor module connector C1 and negative battery cable disconnected. Ensure ignition switch is in OFF position and wiper/washer switch is in LO position. Use an ohmmeter to measure resistance between C1 terminal "B" (Gray wire) and C1 terminal "F" (Pink wire). If resistance is approximately 24 k/ohms, replace wiper motor module cover.
- If reading is infinite ohms, check for open circuits No. 94 (Pink wire) and No. 91 (Gray wire). If wires are okay, replace wiper/washer switch. Move wiper delay switch to maximum delay position. Check resistance between C1 terminal "B" (Gray wire) and C1 terminal "F" (Pink wire).
- If reading is approximately 1.2 megohms, replace wiper motor module cover. If reading is infinite ohms, check for open circuits No. 94 (Pink wire) and No. 91 (Gray wire). If wires are okay, replace wiper/washer switch.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.