P1658

P1658

Overrun Recirculating Air Solenoid Valve Output Stage - Above Limit

Diagnosis conditions
- Time elapsed after engine start-up greater than 10 seconds
- Battery positive voltage between 10 V and 16 V

Possible fault cause
- Short circuit to B+ in triggering wire
- Short circuit in overrun recirculating air solenoid valve
- DME control module faulty

Affected terminals
DME control module connector A, pin 9, and overrun recirculating air solenoid valve connector, pin 1

Diagnosis/troubleshooting
- The wiring for DME control module connector A, pin 9, and overrun recirculating air solenoid valve connector, pin 1, is routed via the K plug connection, pin 7.
- The wiring for fuse FE11 and overrun recirculating air solenoid valve connector, pin 2, is routed via the KE7, pin 1, plug connection.
- If connector A is disconnected from the DME control module and the ignition is or was switched on, the 'DME Control Module TIMEOUT' fault is recorded in many control modules.
- If control module connector A was disconnected from the DME in the course of troubleshooting or if the voltage supply was interrupted elsewhere (battery, fuse), the throttle adjusting unit must be adapted.