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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1135 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test Ab : B1087:83 Or B1087:87 >> Notes

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

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

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

Normal Operation and Fault Conditions 

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

The PDM communicates with the PRDM over a LIN circuit. In the event the PRDM fails, the RHR 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 by the DDM and PDM when a communication fault is detected from the communication from the corresponding RDM.
B1087:87 LIN Bus "A": Signal Invalid Sets by the DDM and PDM when a communication fault is detected from the communication from the corresponding RDM.

Possible Causes 

Visual Inspection and Diagnostic Pre-checks 

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