Pinpoint Tests AD: The Door Ajar Message Center Warning Indicator Is Never/Always On
Instrumentation, Message Center and Warning Chimes
Pinpoint Test AD: The Door Ajar Message Center Warning Indicator Is Never/Always On
Normal Operation
The Instrument Cluster (IC) receives the door ajar status for the LH front, RH front, LH rear and RH rear door ajar switch from the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN) communication bus. When the IC receives a message from the SJB that one or more doors are open or ajar, the IC turns on the door ajar message center warning indicator.
If the door ajar status message is missing for less than 5 seconds, the IC defaults the door ajar message center warning indicator to the last on/off state, based upon the last known good door ajar message received.
If the door ajar status message is missing for greater than 5 seconds, the IC sets DTC U0140 and defaults the door ajar message center warning indicator on.
NOTE: If DTC U0140 is set in the SJB, other symptoms may also be present such as high beam indicator, RH/LH turn indicators, instrument panel backlighting and Tire Pressure Monitoring System (TPMS).
This pinpoint test is intended to diagnose the following:
- Interior lighting concern
- SJB
PINPOINT TEST AD: THE DOOR AJAR MESSAGE CENTER WARNING INDICATOR IS NEVER/ALWAYS ON
