Possible Causes
| Possible Causes |
|---|
| CHECK FOR RELATED DTCS |
| LOW FLUID LEVEL |
| (F856) 5-VOLT SUPPLY CIRCUIT OPEN |
| POOR LINE PRESSURE SENSOR CONNECTION |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE |
| (T118) PRESSURE CONTROL SOLENOID CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| INTERNAL TRANSMISSION |
| LINE PRESSURE SENSOR |
| CRACKED, PLUGGED, OR MIS-INSTALLED PRIMARY OIL FILTER |
| LOOSE COOLER RETURN SPIN ON FILTER (IF EQUIPPED) |
| STUCK OR STICKING MAIN REGULATOR VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting Procedure before proceeding. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .