FixVault

(Checking Water Or Corrosion In The Power Steering Control Module (PSCM))

Water ingress to the control module and its contacts can result in reduced power steering and interference on the CAN in the vehicle.

Water ingress may also remain between the Power Steering Control Module (PSCM) and sound insulation boot, which is installed on certain vehicle versions.

Checking Power Steering Control Module (PSCM). 

  1. Check Power Steering Control Module (PSCM) for corrosion.
  2. Check that the CAN is reset by disconnecting the control module.
  3. If a fault is found, replace the Power Steering Control Module (PSCM).

Checking connectors and terminals 

  1. Check that the pump contact is in proper contact.
  2. Check for water or moisture in the contacts.
  3. If a fault is found, replace the pump for Power Steering Control Module (PSCM) and replace or repair the corroded connections.
  4. Check and if necessary correct a poor battery status and poor ground connection.

If the problem persists, replace the Power Steering Control Module (PSCM).

NOTE:

Avoid water collecting by reinstalling the sound insulation boot.