P2258

P2258

Secondary Air Injection Pump Relay Output Stage, Bank 1 - Above Limit

Diagnostic conditions
- Time after the engine is started longer than 10 seconds
- Battery voltage between 10 V and 16 V

Possible cause of fault
- Short circuit to B+ in control line
- Secondary air injection pump relay, bank 1, faulty
- DME control module faulty

Affected terminals
DME control module connector A, pin 46, and secondary air injection pump relay, bank 1, pin 2

Diagnosis/troubleshooting

NOTE: 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.

NOTE: 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.