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XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)

Maintenance > Fuses and Circuit Breakers > 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.  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, B5244T5, B5254T2 See: Powertrain
Management/Computers and Control Systems/Engine Control Module/Service and Repair. Remove the transmission control module (TCM) 
Transmission control module (TCM), replacing, B5244T5, AW55-50/51SN, B5254T2, AW55-50/51SN, B5254T2, AW50/51 AWD See:
Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and Drivetrain/Relays and Modules - A/T/Control
Module/Service and Repair.

Removing the central electrical unit

Maintenance > Fuses and Circuit Breakers > Relay Box > Component Information > Service and Repair > Central Electrical Unit Engine Compartment

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