Diagnostic Trouble Code (DTC) Information

2007 Volvo XC90 AWD V8-4.4L VIN 85 B8444SSECTION Diagnostic Trouble Code (DTC) Information





Diagnostic trouble code (DTC) information DEM-0001

Condition




The differential electronic module (DEM) checks if the signal from the oil temperature sensor is within the permitted range by comparing the signal with a predefined parameter.
The diagnostic trouble code (DTC) is stored if the signal from the oil temperature sensor corresponds to a temperature lower than -40 °C or higher than +110 °C.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute value
- Four wheel drive is disengaged.

Possible source
- Damaged temperature sensor
- Damaged control module.

Fault symptom[s]
- Four wheel drive is not functioning.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.