XC90 AWD V8-4.4L VIN 85 B8444S (2005)
Hint: Slacken off the uppermost nut. Leave it in place, screwed in a few turns.
Pull the control module from the mounting.
Position a screwdriver between the control module connector and its locking handle (as illustrated). Turn the screwdriver to release the catch.
Continue pulling the locking handle outwards until the connector comes away from the control module.
Installing the control module for the engine coolant heater
Install the switch by pressing in the lock handle.
Position the control module. Tighten the nuts. See See: Body and Frame/Specifications
Test run the engine coolant heater and check its function. See Engine coolant heater, test running See: Heating and Air Conditioning/Auxiliary Cabin
Heater/Testing and Inspection/Component Tests and General Diagnostics.
Check that no diagnostic trouble codes (DTC) have been stored during the repair work.
the bumper cover. See Casing bumper front, replacing See: Body and Frame/Bumper/Front Bumper/Front Bumper Cover / Fascia/Service and
the battery lead. See Battery, disconnecting See: Starting and Charging/Battery/Service and Repair/Procedures/Battery, Disconnecting.