LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2003 >> XC90 Base, AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Brake Control Module (BCM) Diagnostic Trouble Codes - 1 Of 3 >> BCM-0094: Communication Between Control Units Communication Problems With DEM (2003-2004) >> Communication Problems With The Differential Electronic Module (DEM) >> Checking Diagnostic Trouble Codes (DTCS) In The Central Electronic Module >> Intermittent Fault
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Intermittent Fault

HINT: The status of the diagnostic trouble code (DTC) indicates that the brake control module has previously registered a fault but that the fault is not active. 

Check the connectors of the brake control module (BCM) and the differential electronic module (DEM) for contact resistance and oxidation.

Also check that the wiring for CAN communication is not too close to a source of interference such as a carphone etc.

Remedy as necessary.

Other information 

Fig 1: Breakout Box
GLL100304Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS CORPORATION