SIR Lamp On DTC B0012 and/or B0013 Set - keywords b001202 b001204 b00120e b001302 b001304 b00130e bag drive infltable mil restraints supplemental
| Subject: | SIR Lamp On DTC B0012 and/or B0013 Set |
| Models: | 2007-2008 Cadillac Escalade Models |
| 2007-2008 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2007-2008 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
SIR lamp on with DTC B0012 and/or B0013 Symptom 02, 04, or 0E set in the SDM. This can be caused by a shorted or cut wire behind the driver's side air bag, see photo below.
Recommendation/Instructions:
Remove the driver's side air bag and inspect the wire harness between the air bag and the SIR coil for chaffed or cut wires. If the wiring is cut or chaffed, replace the SIR coil, which will include the harness.
It will be necessary to make sure the protective tubing (yellow sleeve) on the new harness is pushed all the way down to the SIR coil. This will ensure the wiring does not get cut or chaffed again. It will also be necessary to add electrical tape to the other end of the yellow protective tubing (see photo below) to hold it in place.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
