P0605

CONTROL MODULE, INTERNAL FAULT





Symptom Of Fault.
The CHECK ENGINE lamp (MIL) is on. Undefinable (different functions may be affected, depending on the internal memory and/or program fault).

Conditions.
When the ignition is switched on the control module's program does not coincide with that programmed by the supplier.

Diagnostic Procedure.
1. Check the control module

- If the diagnostic trouble code is generated, remove the control module and check its connector. Pay particular attention to possible socket slide-out.
- Check the control module's ground connection and power supply, pins 24, 25, 1, 48 and 60.
- Rectify as necessary and then continue with point 2.





2. Final check:

- Clear the diagnostic trouble code.
- Perform a driving cycle:

^ Drive the car at varying loads and engine rpm for 5 minutes.
^ Turn 'the ignition switch ON and OFF 10 times.

- Evaluation of the driving cycle:
Check whether the diagnostic trouble code has recurred.

Has the diagnostic trouble code recurred?
YES: Continue at "Before Replacing a Control Module". Component Tests and General Diagnostics
NO: The remedial measure taken was correct.