P1825 OBD Code Definition:
Transmission Range Switch, Signals ‘A/B/C &P’ – Incorrect Signal
P1825 OBD Code Description:

Possible Causes

• Wiring from/to Pressure Control Valve 3 Short to Plus
• Pressure Control Valve 3 faulty

Possible Solutions

• Check Wiring from/to Pressure Control Valve 3
• Check Pressure Control Valve 3
• Check Measuring Blocks

Tech Notes

• Pressure Control Valve 3 might be referred to as Solenoid Valve 6
• 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.