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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.3 T, 4L60E/M30REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1338 (OBJECT DETECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B009ACIRCUIT/SYSTEM TESTING
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30
Circuit/System Testing
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the left hood hinge actuator.
- Ignition ON, test for less than 1 volt between the high control circuit terminal A and ground.
- If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
- Test for less than 1 volt between the low control circuit terminal B and ground.
- If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
- Ignition OFF, test for infinite resistance between the high control circuit terminal A and ground.
- If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
- Test for infinite resistance between the low control circuit terminal B and ground.
- If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
- Test for less then 1 ohm of resistance between the high control circuit terminal A and ground.
- If not within the specified range, test the circuit for an open/high resistance.
- Test for less then 1 ohm of resistance between the low control circuit terminal B and ground.
- If not within the specified range, test the circuit for an open/high resistance.
- If all circuits test normal, replace the hood hinge actuator.
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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.