Workshop Manuals Factory service & repair Volvo
01 Relays and Modules02 Sensors and Switches03 Maintenance04 Engine, Cooling and Exhaust05 Powertrain Management06 Transmission and Drivetrain07 Brakes and Traction Control08 Starting and Charging09 Power and Ground Distribution10 Steering and Suspension11 Heating and Air Conditioning12 Restraint Systems13 Accessories and Optional Equipment14 Body and Frame15 Cruise Control16 Instrument Panel, Gauges and Warning Indicators17 Lighting and Horns18 Windows and Glass19 Wiper and Washer Systems
Volvo XC90 L5-2.5L Turbo VIN 59 B5254T2 (2004)05 · Powertrain Management
05 · Diagnostics

Engine Control Module: Description and Operation (page 3 of 6)

Make
Volvo
Model
XC90
Engine
L5-2.5L Turbo VIN 59 B5254T2
Year
2004
Section
Computers and Control Systems › Relays and Modules - Computers and Control Systems › Engine Control Module
Powertrain ManagementDescription and Operation · page 3 of 6
Engine Control Module: Description and Operation (page 3 of 6) – Volvo XC90 L5-2.5L Turbo VIN 59 B5254T2 (2004)

Engine Control Module: Service and Repair

Engine control module (ECM), replacing

Special tools:

999 5722 Wrench See: Tools and Equipment/999 5722 Wrench 

Points to observe when replacing the control module

Caution! New software can only be ordered when the control module is installed in the vehicle. VIDA reads off the new control module identity
which is required to order the correct software. The software can only be ordered when the new control module is installed in the car.

Caution! Wait 2 minutes after the ignition has been switched off. The main relay must be voltage-free before the control module can be
removed from the car. If the engine cooling fan runs on after the ignition has been switched off, wait until it stops and then wait for another 2
minutes.

Caution! Always check that the control module and control module box connector pins and sleeves are not bent or damaged. This may have
caused the fault.

Removing the engine control module (ECM)

Pinch or Ctrl + scroll to zoom. Double-tap to reset.

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Parts & tools for this job For 2004 Volvo XC90 2.5L

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