2009 Volvo XC70 BaseFACTORY OEM SERVICE PROCEDURE

Differential Electronic Module (DEM) DTCS

DIFFERENTIAL ELECTRONIC MODULE (DEM) - DTC INDEX

DTC Volvo Code Description
P0560 DEM-P056017 System Voltage. General Electrical Failures. Circuit voltage above threshold
P0602 DEM-P060254 Powertrain Control Module Programming Error. System Programming Failures. Missing calibration
P0607 DEM-P060749 Control Module Performance. System Internal Failures. Internal electronic failure
P0634 DEM-P063468 PCM/ECM/TCM Internal Temperature Sensor Circuit. Algorithm Based Failures. Event information
P064F DEM-P064F05 Unauthorized Software/Calibration Detected. General Failure Information. System Programming Failures
P0666 DEM-P066611 PCM/ECM/TCM Internal Temperature Sensor Circuit. General Electrical Failures. Circuit short to ground
P0666 DEM-P066615 PCM/ECM/TCM Internal Temperature Sensor Circuit. General Electrical Failures. Circuit short to battery or open
P0667 DEM-P066727 PCM/ECM/TCM Internal Temperature Sensor Range/Performance. General Signal Failures. Signal rate of change above threshold
P0748 DEM-P074812 Pressure Control Solenoid A Electrical. General Electrical Failures. Circuit short to battery
P0748 DEM-P07481D Pressure Control Solenoid A Electrical. General Electrical Failures. Circuit current out of range
P0961 DEM-P096162 Pressure Control Solenoid A Control Circuit Range/Performance. Algorithm Based Failures. Signal compare failure
P1635 DEM-P163568 Tire/Axle Out of Acceptable Range. Algorithm Based Failures. Event information
P1889 DEM-P188912 Oil Pressure Pump Performance. General Electrical Failures. Circuit short to battery
P1889 DEM-P188914 Oil Pressure Pump Performance. General Electrical Failures. Circuit short to ground or open
P1889 DEM-P188918 Oil Pressure Pump Performance. General Electrical Failures. Circuit current below threshold
P1889 DEM-P188919 Oil Pressure Pump Performance. General Electrical Failures. Circuit current above threshold
P1889 DEM-P188949 Oil Pressure Pump Performance. System Internal Failures. Internal electronic failure
P1889 DEM-P18897A Oil Pressure Pump Performance. Mechanical Failures. Fluid leak or seal failure
U0001 DEM-U000100 High Speed CAN Communication Bus. General Failure Information. No sub type information
U0100 DEM-U010000 Lost Communication With Engine control module. General Failure Information. No sub type information
U0121 DEM-U012100 Lost Communication With Brake Control Module. General Failure Information. No sub type information
U0140 DEM-U014000 Lost Communication With Central electronic module. General Failure Information. No sub type information
U0300 DEM-U030000 Internal Control Module Software Incompatibility. General Failure Information. No sub type information
U0300 DEM-U030046 Internal Control Module Software Incompatibility. System Internal Failures. Calibration/parameter memory failure
U0300 DEM-U03004A Internal Control Module Software Incompatibility. System Internal Failures. Incorrect component installed
U0300 DEM-U030054 Internal Control Module Software Incompatibility. System Programming Failures. Missing calibration
U0401 DEM-U040168 Invalid Data Received from ECM/PCM A. Algorithm Based Failures. Event information
U0415 DEM-U041568 Invalid Data Received From Anti-Lock Brake System Control Module. Algorithm Based Failures. Event information
U2100 DEM-U210000 Initial Configuration Not Complete. General Failure Information. No sub type information
U2101 DEM-U210100 Control Module Configuration Incompatible. General Failure Information. No sub type information
U3003 DEM-U300362 Battery Voltage. Algorithm Based Failures. Signal compare failure
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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