Preparation
Disconnect the battery lead
Note when disconnecting / connecting the battery lead

Preparations for replacement

Note: There is no need to download software when replacing the ABS control module.

Remove the air cleaner (ACL) housing
Replacing brake pipe between master cylinder and ABS unit.

Remove the integrated relay fusebox. Remove the connector for the ABS unit
Replacing brake pipe from ABS hydraulic modulator to front wheels and rear junctions.

Remove the control module
Remove:

• the pump motor connector
• the four screws. Use a 6 mm torx external socket. Carefully lift the control module.

Check the control module
Check:

• that the control module is of the correct type (this depends on whether the car is equipped with STC or not)
• that none of the pins or sockets on the connector are damaged
• that there are no contaminants on the mating surfaces between the control module and the ABS hydraulic modulator
• that no part of the control module seals remain on the ABS hydraulic modulator valves.

Install the control module on the ABS hydraulic modulator

• the control module. Tighten to 1.8 Nm
• the connectors for the pump motor and the control module
• the air cleaner (ACL) housing. Replacing brake pipe between master cylinder and ABS unit
• the integrated relay / fusebox. Replacing ABS and STC hydraulic modulator.

Function test
Replacing front wheel sensor.

Registration
After replacing the ABS control module, the identity of the control module must be registered in the Volvo database.