Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR2016XJR BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: GATEWAY MODULE -- XJ/X351DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: GATEWAY MODULEDESCRIPTION AND OPERATIONGATEWAY MODULE (GWM)U0055-88 VEHICLE COMMUNICATION BUS D - BUS OFFPOSSIBLE CAUSES
2016 Jaguar XJR Base
Possible Causes
2016 Jaguar XJR BaseSECTION Possible Causes
NOTE:
Circuit reference - MS CAN H (BO) / MS CAN L (BO)
- Medium speed CAN bus (body) circuit short circuit to ground, short circuit to power, open circuit, high resistance
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.