P1815 OBD Code Definition:
Transmission Fluid Pressure Switch – Invalid Gear Selection
P1815 OBD Code Description:
Possible Causes
- Wiring from/to Pressure Control Valve 1 Short to Plus
- Pressure Control Valve 1 faulty
Possible Solutions
- Check Wiring from/to Pressure Control Valve 1
- Check Pressure Control Valve 1
- Check Measuring Blocks
Special Notes
- Pressure Control Valve 1 might be referred to as Solenoid Valve 4
- Start with checking connectors for corrosion or water damage, in case of 01V transmission pay special attention to 16-pin connector between valve body and wiring harness.