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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1913 (POWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B396BCIRCUIT/SYSTEM TESTING
2006 Chevrolet Suburban K2500, 6.0 U
Circuit/System Testing
2006 Chevrolet Suburban K2500, 6.0 USECTION Circuit/System Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X3 harness connector at the liftgate control module.
- Test for less than 15 Ξ© between the control terminal 14 at the liftgate control module and ground.
- If greater than the specified range, replace the liftgate control module.
- Test for less than 15 Ξ© between the control terminal 13 at the liftgate control module and ground.
- If greater than the specified range, replace the liftgate control module.
- Test for 9-10 Ξ© between the control circuit terminal 13 and control circuit terminal 14 at the liftgate motor assembly.
- If less than the specified range, test either control circuit for a short to ground. If the circuits test normal, replace the liftgate actuator assembly.
- If greater than the specified range, test either control circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the liftgate actuator assembly.
- If all circuits test normal, replace the liftgate control module.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.