Power Steering Control Module (PSCM)

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.

NOTE:

Guided Diagnostics must be followed and the repair advised by the process completed. Failure to do so may result in the rejection of any warranty claim made.
If a control module or a component is at fault and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures article, or determine if any prior approval program is in operation, prior to the installation of a new module/component.
BEFORE starting any repairs or investigations of power steering issues, first download and retain the session file using the Jaguar Land Rover approved diagnostic equipment. Where possible, check if the timeframe of any stored DTCs coincides with customers' reports both of the onset of steering system fault symptoms and with the technical nature of the reported symptoms.
During normal vehicle operation steering assistance may be temporarily reduced in a controlled way under some circumstances. When diagnosing potential steering assistance issues, first check if the customer reported symptom relates either to one of these circumstances (as described in the relevant Description and Operation article in the service information,)or , to one of the following circumstances: an over temperature condition due to exceptionally demanding steering inputs; the vehicle power supply being in a low state of charge; CAN network signals required from other vehicle systems being unavailable or invalid

The service information below lists all Diagnostic Trouble Codes (DTCs) that could be set in the Power Steering Control Module (PSCM). For additional diagnosis and testing information, refer to the relevant Diagnosis and Testing article in the service information. For additional information, Refer to: POWER STEERING