Possible Causes
| Possible Causes |
|---|
| (Q987) POWER TOP MOTOR SENSE CIRCUIT SHORT TO GROUND |
| (A927) FUSED B(+) CIRCUIT OPEN |
| POWER TOP MOTOR |
| POWER TOP CONTROL MODULE (PTCM) |
Always perform the Power Top System Pre-Diagnostic procedure before proceeding. See DTC-Based Diagnostics/MODULE, Power Top Control (PTCM) - Standard Procedure .