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XC90 FWD L6-3.2L VIN 98 B6324S (2007)

Relays and Modules > Relays and Modules - Power and Ground Distribution > Relay Box > Component Information > Service and Repair > Central Electrical Unit Engine Compartment

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Relay Box: Service and Repair
Central Electrical Unit Engine Compartment

Central electrical unit engine compartment, replacing

Removal

Preparatory work

Note! As the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the
essential information in the illustrations is always correct.

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Disconnect the battery negative lead. See Battery, replacing See: Starting and Charging/Battery/Service and Repair/Removal and Replacement.
Also see Battery, disconnecting See: Starting and Charging/Battery/Service and Repair/Procedures/Battery, Disconnecting 

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Remove the power steering fluid and coolant reservoirs. Lift up and move to one side

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Remove the cover from the central electrical unit

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Remove the engine control module (ECM) Engine control module (ECM), replacing See: Relays and Modules - Powertrain Management/Relays
and Modules - Computers and Control Systems/Engine Control Module/Service and Repair. Remove the transmission control module (TCM)
Transmission control module (TCM), replacing See: Relays and Modules - Transmission and Drivetrain/Relays and Modules - A/T/Control
Module/Service and Repair.

Removing the central electrical unit

Relays and Modules > Relays and Modules - Power and Ground Distribution > Relay Box > Component Information > Service and Repair > Central Electrical Unit Engine Compartment

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