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Home >> Audi >> 2009 >> A4 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1213 (Module Communications Network (2 Of 2)) >> Diagnosis And Testing >> Communications Network >> Pinpoint Tests >> Pinpoint Test I : The DCMR (Differential Control Module Rear) Does Not Respond To The Diagnostic Scan Tool >> Notes

Pinpoint Test I : The DCMR (Differential Control Module Rear) Does Not Respond To The Diagnostic Scan Tool: 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 Module Communications Network for schematic and connector information.

Refer to Wiring Diagram Four Wheel Drive Systems for schematic and connector information.

Normal Operation and Fault Conditions 

The DCMR communicates with the diagnostic scan tool through the HS-CAN1.

Possible Sources 

Visual Inspection and Diagnostic Pre-checks 

Verify BJB fuse 54 (40A) is OK.

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