TSB: Jaguar Loss Of Power Steering
Jaguar Loss Of Power Steering
This bulletin applies to 2021-2023 Jaguar XF, I-PACE and XE vehicles. JLR Engineering investigations have had reports of no power steering assist at the start of a drive cycle. Advanced Driver Assistance Systems (ADAS) warning message on the instrument panel and DTC U0400-81 may be set on the Driver Assistance Domain Controller (DADC). The cause is a software error. Do not replace any parts before completing the following steps:
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Run the network integrity test (NIT) vehicle application.
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Run the Power Steering Control Module (PSCM) data collection module application.
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Complete the 12V battery reset procedure.
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Confirm that the reported fault in now resolved.
According to JLR, a software update is now available as a permanent repair.