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Pinpoint Test Y : B1087:83, B1087:86 Or B1087:88: Notes

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions 

REFER to: Handles, Locks, Latches and Entry Systems.

The DDM and PDM communicate with the corresponding RDM over a LIN. The window control switch on the driver door also provides information to the DDM over the same LIN. In the event of a failure on a LIN, the power windows, power locks and switch illumination are inoperative in the corresponding rear door. If there is a LIN failure for the DDM, the controls from the driver window control switch are also inoperative.

DDM/ PDM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B1087:83 LIN Bus "A": Value Of Signal Protection Calculation Incorrect Sets when the DDM/ PDM receives invalid data over the LIN.
B1087:86 LIN Bus "A": Signal Invalid Sets when the DDM/ PDM receives invalid data over the LIN.
B1087:88 LIN Bus "A": Bus Off Sets when the DDM/ PDM receives no data over the LIN. An open or short on the LIN can cause this.

Possible Causes 

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