Control Module, Separating From Hydraulic Unit: Notes

Special tools and workshop equipment required 

• ESD Work Surface :VAS6613 
• TORX^® Insert T25

Replacing Control Modules

Replace the control module:

• If the Vehicle Diagnostic Tester has determined that the control module is faulty "Control Module Faulty".
• if there is visible damage to the control module housing or to the connector

• If the control module is faulty, then the control module is to be separated from the hydraulic unit and only the control module replaced.
• If the hydraulic unit is faulty, the hydraulic unit and the control module are to be replaced together.

Replacing the control module should only be done by trained personnel.

• Only the new parts in the repair kit may be used.
• Only new bolts may be used for attaching the control module to the hydraulic unit.
• The seal on the control module must not be pulled out or raised up.
• The seal on the control module cannot be replaced.
• Cleaning the control module or hydraulic unit with compressed air is not permitted.
• The valve coils inside the control module cannot be adjusted.
• The valve coils inside the control module cannot be replaced.
• The pressure sensor must be changed or damaged.
• The pressure sensor cannot be replaced.
• Do not place anything on the sensor housing.
• It is not possible to perform any measurements on the contacts inside the control module.
• It is not possible to perform any measurements on the contacts inside the hydraulic unit.
• The valve bodies inside the hydraulic unit must not be damaged or bent.
• The contacts cannot be replaced.
• Do not use contact spray on the contacts and pressure sensor.
• Make sure there are no foreign objects between the control module and the hydraulic unit.