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 MANUALSCHEVROLET2012COLORADO 4WD L5-3.7LREPAIR AND DIAGNOSISRESTRAINTS AND SAFETY SYSTEMSRELAYS AND MODULES - RESTRAINTS AND SAFETY SYSTEMSAIR BAG CONTROL MODULESERVICE AND REPAIR
2012 Chevrolet Colorado 4WD L5-3.7L
Air Bag Control Module: Service and Repair
2012 Chevrolet Colorado 4WD L5-3.7LSECTION Service and Repair
Inflatable Restraint Sensing and Diagnostic Module Replacement
Removal Procedure
Warning
Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of the vehicle. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.
1. Disable the SIR system. Refer to SIR Disabling and Enabling Service and Repair.
2. Remove the floor console. Refer to Console Replacement (Large w/Manual or Auto Transmission) Console Replacement (Large w/Manual or Auto Transmission)Console Replacement (Small w/Manual Transmission) Console Replacement (Small w/Manual Transmission).
3. Cut the carpet along the "I" cut pattern over the inflatable restraint sensing and diagnostic module (SDM).
4. Fold the carpet back to expose the SDM.
5. Disconnect the electrical connector (2) from the SDM (1).
6. Remove the nuts (2) retaining the SDM (1) to the floor studs (3).
7. Remove the SDM from the vehicle.
Installation Procedure
Caution: Refer to Fastener Caution Fastener Caution.
1. Install the SDM (1) to the floor studs (3) with 3 nuts (2).
Tighten the SDM nuts to 9 Nm (79 lb in).
2. Connect the electrical connector (2) to the SDM (1).
3. Fold the carpet back down over the SDM.
4. Install the floor console. Refer to Console Replacement (Large w/Manual or Auto Transmission) Console Replacement (Large w/Manual or Auto Transmission)Console Replacement (Small w/Manual Transmission) Console Replacement (Small w/Manual Transmission).
Note: The AIR BAG indicator may remain ON after the SDM has been replaced. DTC B1001 may set requiring the SDM part number to be set in multiple modules. If the indicator remains ON after enabling the SIR system, perform the diagnostic system check and follow the steps thoroughly to ensure that the SDM is set properly.
5. Enable the SIR system. Refer to SIR Disabling and Enabling Service and Repair.
6. Program the SDM. Refer to Control Module References Control Module References.
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.