Code 52 (Throttle Position Switch/Idle)
THROTTLE POSITION SWITCHExplanation
This trouble code is stored when the throttle switch or the wire to the Digital Motor Electronic (DME) control unit Pin 52 has a short to ground.
NOTE: A prerequisite for this is that the engine is at operating temperature >176°F (>80°C) at an engine speed >1000 rpm and a load signal >3.5 ms.
Troubleshooting
- Perform status monitoring.
- Check mechanical connection of throttle valve.
- Proceed with displayed scan tool diagnostic instructions where applicable.