Engine Controls - DTC 37DE Eng. Vent,Heat,Trigger Open Circuit

SI M12 01 12
Engine Electrical Systems

January 2012
Technical Service

SUBJECT
N18 Engine: FC 37DE Engine Ventilation, Heating, Triggering Stored in the DME After Programming

MODEL
R55 (Cooper Clubman) with N18 engine
R56 (Cooper) with N18 engine
R57 (Cooper Convertible) with N18 engine
R60 (Countryman) with N18 engine

SITUATION
The Service Engine Soon lamp is illuminated after reprogramming the vehicle to integration level R056-11-11-503 (ISTA/P P45.1.3.0) or higher. When diagnosed, the following fault code is stored in DME fault memory:

^ 37DE Engine ventilation, heating, triggering: open circuit

CAUSE
Due to a DME software change, the diagnostic monitoring capability is improved for the engine ventilation heating system. However, a fault will be stored in the fault memory because the engine ventilation heater circuit has a malfunction currently present.

PROCEDURE
Verify the integrity of the circuit, using the attached document incorporating the wiring schematic and its component locations. The current version of ISTA/D does not incorporate any supporting documents for the engine ventilation heating circuit schematic.

With the release of ISTA/D 2.30.1 (June 2012) the engine ventilation heating circuit schematic and component locations will be corrected.

WARRANTY INFORMATION
For information only.

ATTACHMENTS











N18 Heated Crankcase Ventilation System Schematic