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 MANUALSCHEVROLET2025TRAVERSE HIGH COUNTRY, FWDREPAIR AND DIAGNOSISRESTRAINTSSEAT BELTSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1AD2CIRCUIT/SYSTEM TESTING
2025 Chevrolet Traverse High Country, FWD
Circuit/System Testing
2025 Chevrolet Traverse High Country, FWDSECTION Circuit/System Testing
NOTE:
- Refer to SIR Service Precautions .
- Refer to SIR Disabling and Enabling .
- Inspect all terminals for damage or corrosion when disconnecting connectors. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- B153D Front Seat Belt Buckle - Driver
- K36 Inflatable Restraint Sensing and Diagnostic Module
- Ignition/Vehicle OFF.
- Disable the SIR system. Refer to SIR Disabling and Enabling .
- Disconnect the harness connector at the B153D Front Seat Belt Buckle - Driver. It may take up to 2 min for all vehicle systems to power down.
- Test for less than 5 Ω between the low reference circuit terminal 2 and ground.
- If 5 Ω or greater
- Ignition/Vehicle OFF.
- Verify the SIR system is disabled.
- Disconnect the harness connector at the K36 Restraints Control Module.
- Test for less than 2 Ω in the low reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the K36 Restraints Control Module.
- Go to next step: If less than 5 Ω
- Enable the SIR system. Refer to SIR Disabling and Enabling .
- Ignition/Vehicle ON.
- Buckle the B153D Front Seat Belt Buckle - Driver.
- Verify the scan tool Driver Seat Belt Sensor Signal status parameter displays Buckled.
- If not Buckled
- Ignition/Vehicle OFF.
- Disable the SIR system. Refer to SIR Disabling and Enabling .
- Disconnect the harness connector at the K36 Restraints Control Module.
- Test for infinite resistance between the signal circuit terminal 1 and ground.
- If less than infinite resistance, repair the short to ground on the circuit.
- If infinite resistance, replace the K36 Restraints Control Module.
- Go to next step: If Buckled
- Ignition/Vehicle OFF.
- Disable the SIR system. Refer to SIR Disabling and Enabling .
- Install a 3 A fused jumper wire between the signal circuit terminal 1 and the low reference circuit terminal 2.
- Enable the SIR system. Refer to SIR Disabling and Enabling .
- Ignition/Vehicle ON.
- Verify the appropriate scan tool Driver Seat Belt Sensor Signal status parameter is Unbuckled.
- If not Unbuckled
- Ignition/Vehicle OFF.
- Disable the SIR system. Refer to SIR Disabling and Enabling .
- Disconnect the harness connector at the K36 Restraints Control Module, Ignition/Vehicle ON.
- Test for less than 1 V between the signal circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the K36 Restraints Control Module.
- Go to next step: If Unbuckled
- Test or replace the B153D Front Seat Belt buckle - Driver.
- Operate the vehicle within the conditions for running the DTC. Verify the DTC does not reset.
- If the DTC resets, replace the P16 Instrument Panel Cluster Control Module.
- Go to next step: If the DTC does not reset.
- All OK.
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:
- • 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.