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 MANUALSCHEVROLET2009CHEVY EXPRESS G2500, VAN CARGO, 4.8 CREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER SYSTEM & WASHER SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESWINDSHIELD WIPER WASHER SYSTEM MALFUNCTIONCIRCUIT/SYSTEM TESTINGWINDSHIELD WASHER SWITCH CIRCUIT TEST
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 C
Windshield Washer Switch Circuit Test
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 CSECTION Windshield Washer Switch Circuit Test
- Ignition OFF, disconnect the X3 harness connector at the turn signal multifunction switch.
- Test for less than 20 ohms between the low reference circuit terminal M and ground.
- If greater than the specified range, test the low reference circuit for an open/high resistance.
- Verify the scan tool Windshield Wiper Switch parameter is Off.
- If not Off, test the signal circuit terminal E for a short to voltage. If the circuit tests normal, replace the body control module.
- Install a 3A fused jumper wire between the signal circuit terminal L and the low reference circuit terminal M. Verify the scan tool Windshield Washer Switch parameter is Active.
- If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
- If all circuits test normal, test or replace the turn signal multifunction 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.