407 - Control Module Faulty - Signal Implausible

P1671 - CONTROL MODULE FAULTY, SIGNAL IMPLAUSIBLE

Diagnosis conditions
- Ignition on

Possible fault cause
- Undervoltage
- DME control module faulty. (This fault may be entered if the control module has been operated with undervoltage).

Affected terminals
- I/1

Diagnosis/Troubleshooting

NOTE: If no fault is present, delete the fault memory.

Steps 1 - 3: