Possible Causes
| Possible Causes |
|---|
| POWERTRAIN BRAKE SWITCH DTCS |
| K321 BTSI CONTROL CIRCUIT SHORT TO GROUND |
| K321 BTSI CONTROL CIRCUIT OPEN |
| K321 BTSI CONTROL CIRCUIT SHORT TO VOLTAGE |
| WIRELESS IGNITION NODE (WIN) |
Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Electronic Shift (ESM) - Standard Procedure