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Pinpoint Test Ac : B1087:83 Or B1087:87: Notes

Refer to Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions 

The DDM communicates with the left RDM over a LIN circuit. In the event the left RDM fails, the left rear power window and power door lock become inoperative.

The PDM communicates with the right RDM over a LIN circuit. In the event the right RDM fails, the right rear power window and power door lock become 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 detects a fault with the communication from the corresponding RDM.
B1087:87 LIN Bus "A": Signal Invalid Sets when the DDM/PDM detects a fault with the communication from the corresponding RDM.

Possible Causes 

Visual Inspection and Diagnostic Pre-checks 

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