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.
2015 Buick Enclave ConvenienceFACTORY OEM SERVICE PROCEDURE
Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the radio.
- Disconnect the X2 harness connector at the vehicle communication interface control module.
- Ignition ON, test for less than 1 V between the vehicle communication interface control module cellular telephone voice signal circuit terminal 1 X2 and ground.
- If not the specified value, test the cellular telephone voice signal circuit for a short to voltage.
- Test for less than 1 V between the vehicle communication interface control module cellular telephone voice low reference circuit terminal 2 X2 and ground.
- If not the specified value, test the cellular telephone voice low reference circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the vehicle communication interface control module cellular telephone voice signal circuit terminal 1 X2 and ground.
- If not the specified value, test the cellular telephone voice signal circuit for a short to ground.
- Test for infinite resistance between the vehicle communication interface control module cellular telephone voice low reference circuit terminal 2 X2 and ground.
- If not the specified value, test the cellular telephone voice low reference circuit for a short to ground.
- Test for less than 2 Ξ© between the vehicle communication interface control module cellular telephone voice signal circuit terminal 1 X2 and the radio terminal 7 X2.
- If not the specified value, test the cellular telephone voice signal circuit for a open/high resistance.
- Test for less than 2 Ξ© between the vehicle communication interface control module cellular telephone voice low reference circuit terminal 2 X2 and the radio terminal 15 X2.
- If not the specified value, test the cellular telephone voice low reference circuit for a open/high resistance.
- If all circuits test normal, replace the vehicle communication interface control module.
- If all circuits test normal, replace the radio.
Factory Service Tools
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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.
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