FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Test D: DTC B1566 - Door Ajar Circuit Fault/Did Not Detect Open and Close Door Signals

Pinpoint Test D: DTC B1566 - Door Ajar Circuit Fault/Did Not Detect Open And Close Door Signals

Normal Operation
The driver door module (DDM) sends a signal to the air suspension module along circuit 1312 (LG/BK) whenever a door is opened and/or closed.

Possible Causes
^ Circuit open
^ Circuit shorted
^ Driver door module (DDM)

D1-D5: