Symptom Chart

WARNING: This page is about a different car, the 2017 Jaguar XJ, 2016 Jaguar XJ, 2015 Jaguar XJ, 2014 Jaguar XJ, and 2013 Jaguar XJ. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM	POSSIBLE CAUSES	ACTION
Warning message: 2 WHEEL DRIVE ONLY - TRACTION REDUCED	All wheel drive system fault Anti-lock brake system fault Engine system fault Front halfshaft fault Front differential fault Front driveshaft fault Transfer case fault	Using the manufacturer approved diagnostic system, check the transfer case control module for related DTCs and refer to the relevant DTC index Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index Using the manufacturer approved diagnostic system, check the engine control module for related DTCs and refer to the relevant DTC index Check the integrity of the front halfshafts Check the integrity of the front differential Check the integrity of the front driveshaft GO to PINPOINT TEST C .
All wheel drive inoperative - No drive to the front wheels	Front halfshaft fault Front differential fault Front driveshaft fault Transfer case fault	Check the integrity of the front halfshafts Check the integrity of the front differential Check the integrity of the front driveshaft GO to PINPOINT TEST C .
All wheel drive inoperative after draining and refilling the transfer case fluid	Transfer Case Oil Change Reset routine not performed	Using the manufacturer approved diagnostic system, perform routine - Transfer Case Oil Change Reset. If the fault persists, re-configure the transfer case control module with the latest level software and perform routine - Transfer Case Oil Change Reset
Front driveshaft disengaged from transfer case	Transfer case/front driveshaft fault	GO to PINPOINT TEST B .
Transfer case clutch over temperature DTC set	Tire pressures incorrect Wheel/tire sizes incorrect Front left/right halfshaft disengaged from the front differential Transfer case/front driveshaft fault	GO to PINPOINT TEST A .
Transfer case fluid leaking due to cracked/damaged rear casing (with no evidence of external impact) Transfer case noise and vibration excessive at all speeds	Intermediate gear bearing failure Intermediate gear bearing failure	NOTE: Only applicable up to transfer case serial number 16830. Install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification NOTE: Only applicable up to transfer case serial number 16830. Using the manufacturer approved 'Chassis Ear' equipment, determine if the noise originates in the transfer case. If so, install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification
Transfer case noise and vibration excessive during low speed manoeuvring with high steering inputs (front and rear driveshafts rotating at different speeds)	Coupling engaging unintentionally because of fluid contamination due to bearing wear	NOTE: Only applicable up to transfer case serial number 6021. Install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification