| Subject: | Intermittent Battery Light due to DTCs P0AFB, U0111, and/or U1897 |
| Models: | 2008 Chevrolet Malibu Hybrid |
| 2007-2008 Saturn Vue Greenline Hybrid |
| 2007-2008 Saturn Aura Greenline Hybrid |
| with 2.4L Engine (VIN 5 or Z - RPO LAT) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
An intermittent battery light may be experienced with any of the following DTCs P0AFB, U0111, and/or U1897. Typically, this concern is very intermittent so it is unlikely that it will be verified while the vehicle is at the dealership.
Recommendation/Instructions:
If this concern is experienced, perform the SI diagnostics and review the latest versions of PIP4248 (U0111 and U1897 after ECM Reflash) and PIP4288 (U0111 and U1897 after 07141 BECM Reprogram) to determine if they apply to the vehicle and concern that
you are working on. If the SI diagnostics do not isolate the cause of this concern and PIP4248 and PIP4288 do not apply to the vehicle or concern that you are working on, replace the BDU (Battery Disconnect Unit), otherwise known as the BECM (Battery Energy
Control Module), and re-evaluate the concern.
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.
