DTC P0634-4B: Control Module Internal Temperature A Too High - Over temperature: Action

NOTE: This DTC is for event information only and does not indicate a fault. Do NOT renew the anti-lock brake system control module as this is a protection function to make sure that no internal damage occurs

Allow the system temperature to return to normal. Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the Diagnostic Trouble Code(s) and retest