Possible Causes
| Possible Causes |
|---|
| RELATED TCM POWER INPUT OR TRANSMISSION CONTROL RELAY DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT OPEN |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
PRESSURE SWITCH STATES
| GEAR | L/R | 2/4 | OD |
|---|---|---|---|
| R | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN |
| 2nd | OPEN | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED |