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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 6.0 KREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER SYSTEM & WASHER SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESWINDSHIELD WIPER WASHER SYSTEM MALFUNCTIONCIRCUIT/SYSTEM TESTINGWIPERS DO NOT PARK CIRCUIT/SYSTEM TESTING
2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 K

Wipers Do Not Park Circuit/System Testing

2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KSECTION Wipers Do Not Park Circuit/System Testing
  1. Ignition OFF, disconnect the harness connector at the windshield wiper motor.
  2. Ignition ON, verify the scan tool BCM Wiper Park Switch parameter is Inactive.
    • If not Inactive, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, test or replace the body control module.
  3. Install a 3A fused jumper wire between the wiper motor park switch signal circuit terminal 2 and ground. Verify the scan tool Wiper Park Switch parameter is Active.
    • If not Active, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the body control module.
  4. If all circuits test normal, test or replace the windshield wiper motor.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • 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.