Vehicle May Not Start Due To Loose Pin Fit or Backed Out Terminals - keywords P2158 O0722 P1652 P16F4 P0A2D P0A33 POA3F POA40 POA45 POA46 P1BO3 P1BO4
| Subject: | Vehicle May Not Start Due To Loose Pin Fit or Backed Out Terminals |
| Models: | 2008 Chevrolet Tahoe Two-Mode Hybrid |
| 2008 GMC Yukon Two-Mode Hybrid |
| Equipped With a 2ML70 Transmission RPO M99 |
This PI was superseded to add serial number information. Please discard PIP4420A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Customer may comment that the vehicle will not start or the engine will not crank, technicians may find any one of or a combination of dtc's P215B, P0722, P16F2, P16F4, P0A2D, P0A33, P0A3F, P0A40, P0A45, P0A46, P1B03, P1B04.
Recommendation/Instructions:
The concern may be caused by loose pin terminals or backed out terminals at the transmission 24 way pass through connector X176, reference SI document #1985309 item #3 for connector location. Repair or replace terminals as necessary. If no loose terminals are found remove the transmission pan and inspect the internal harness for concerns such as chaffing or terminal concerns, if necessary replace the internal harness.
Transmissions built with the last 5 digits of the serial number prior to 10560 may be more prone to internal harness concerns including loose crimps at the terminals.
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.
