Possible Causes
| Possible Causes |
|---|
| (K136) MTV CONTROL CIRCUIT SHORTED TO VOLTAGE |
| (K136) MTV CONTROL CIRCUIT SHORTED TO GROUND |
| (K136) MTV CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| (Z931) GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| MANIFOLD TUNE VALVE ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .