Checking Full Load Enrichment Disconnection Function

Checking Disconnection Of Full-load Enrichment

Fault Symptom
- Diagnostic trouble codes generated in the MOTRONIC (P1630, P1631),

Action
1 Start the engine and let it idle.
- Connect the ISAT and select "DISCONN ENRICHMENT" in the "ACTIVATE" menu.
- When the ISAT function is activated, the engine should stop.
If this works OK, the diagnostic trouble code (if any) in the MOTRONIC can be left without action.
If the function is faulty, proceed to point 2.
2 Conduct continuity test on the lead between Traction Control System (TCS) control module pin 21 and MOTRONIC connector pin 38, looking for breaks or shorts.
- If the values are correct, proceed to Control Module, Procedure Prior To Replacement.