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 MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 753 (WIPERS SYSTEM AND WASHER SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B3715CIRCUIT/SYSTEM TESTING
2006 Pontiac G6 GTP, 2D Coupe, Standard
Circuit/System Testing
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2007 Saturn Sky. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, remove the WPR 70 On/Off relay.
- Test for less than 5.0 ohms of resistance between the ground circuit terminal 85 and ground.
- If greater than 5.0 ohms, test the ground circuit for an open/high resistance.
- Ignition OFF, remove the WPR 52 high speed relay.
- Ignition ON, test for 0 volts between the wiper switch high signal circuit terminal 86 and ground.
- If greater than 0 volts, test the signal circuit for a short to voltage. If the circuit tests normal, replace the wiper/washer switch.
- Ignition ON, connect a test lamp between the WPR 70 On/Off relay control circuit terminal 86 and ground.
- Momentarily activate the wipers to the MIST position. The test lamp should momentarily turn ON and OFF.
- If the test lamp is always ON, test the relay control circuit for a short to voltage. If the circuit tests normal, replace the body control module.
- If the test lamp does not illuminate, test the relay control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the body control module.
- Ignition OFF, disconnect the C2 harness connector at the body control module.
- Wiper switch OFF, test for infinite resistance between the signal circuit terminal 57 and ground.
- If less than infinite resistance, test the signal circuit for a short to ground.
- If all circuits test normal, replace the WPR 70 On/Off relay.
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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.