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 MANUALSGMC2011YUKON BASE, 5.3 0, RWDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSPOWER DOOR LOCK SYSTEM AND RELEASE SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B153ECIRCUIT/SYSTEM TESTING

2011 GMC Yukon Base, 5.3 0, RWD

Circuit/System Testing

2011 GMC Yukon Base, 5.3 0, RWDSECTION Circuit/System Testing

Ignition OFF, disconnect the X3 harness connector at the liftgate control module.
Ignition OFF, test for less than 1 Ω between the low reference terminal 11 at the liftgate control module and ground.
- If greater than the specified range, replace the liftgate control module.
Ignition ON, test for 4.8-5.2 V between 5 V reference terminal 8 at the liftgate control module and ground.
- If not within the specified range, replace the liftgate control module
Ignition ON, test for 4.8-5.2 V are between sensor 1 signal terminal 9 and low reference terminal 11 at the liftgate control module.
- If not within the specified range, replace the liftgate control module.
Test for 4.8-5.2 V between sensor 2 signal terminal 10 and low reference terminal 11 at the liftgate control module.
- If not within the specified range, replace the liftgate control module.
If all circuits test normal, test or replace the liftgate actuator assembly.

RENDER: 1.0x

NO RELATED

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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.