Intermittent DTC C0326 or C0327 Typically Setting During Cold Start - keywords code mil temperature
| Subject: | Intermittent DTC C0327 Typically Setting During Cold Start |
| Models: | 2007 Chevrolet Avalanche, Suburban, Tahoe |
| 2007 GMC Yukon, Yukon Denali, Yukon Denali XL, Yukon XL |
| Equipped with a 246 Transfer Case RPO NP8 |
This PI was superceded to update Condition/Concern. Please discard PIP4044A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Service 4x4 light may intermittently come on typically in cold ambient temperatures and just after a cold soak start. Technicians may find a DTC c0326 or c0327 with a symptom code 08 and may have difficulty duplicating the concern.
Recommendation/Instructions:
A revised TCCM calibration has been released during the week of 4/2/07 to correct the above concern. Please reflash the TCCM. If the concern returns follow published eSI diagnostics.
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.
