Symptom Chart

WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM	POSSIBLE CAUSES	ACTION
Warning message: TRACTION REDUCED - 2 WHEEL DRIVE ONLY	This warning message may be induced by a module other than the Transfer Case Control Module (TCCM) Transfer case control module power or ground circuit open circuit, high resistance Transfer case clutch not engaging Transfer case actuator failure Transfer case control module internal failure	NOTE: No DTC will be set during a transfer case clutch over temperature event. When the system has cooled, normal all wheel drive operation will resume and the warning message will extinguish. Using the Jaguar Land Rover approved diagnostic equipment, check datalogger signal - Last Event Transfer Case Clutch % of Max Operating Temperature (0x071A). Allow the vehicle to cool and retest Using the Jaguar Land Rover approved diagnostic equipment check other control modules for related Diagnostic Trouble Code(s) and refer to the relevant DTC index Refer to the electrical circuit diagrams and check the transfer case control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary Check the operation of the transfer case clutch. GO to PINPOINT TEST A .
No communication with the transfer case control module	Transfer case control module power or ground circuit open circuit, high resistance High speed Controller Area Network (CAN) bus (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance High speed CAN bus (powertrain) circuit short circuit to ground, short circuit to power, open circuit, high resistance Transfer case control module internal failure	Refer to the electrical circuit diagrams and check the transfer case control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary Install a new transfer case control module. Using the Jaguar Land Rover approved diagnostic equipment, re-configure the transfer case control module with the latest level software. Start the engine. Allow the engine to run for at least one minute. Clear the Diagnostic Trouble Code(s)
All wheel drive performance poor or inoperative - Rear wheel flare when pulling away or excessive over steer	Excessive difference in tire circumference due to incorrect size, incorrect pressure or wear. Incorrect tires for the driving conditions Transfer case clutch cooling strategy invoked due to extreme use of the all wheel drive system All wheel drive system fault Anti-lock brake system fault Engine system fault Power distribution system fault High speed CAN bus (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance High speed CAN bus (powertrain) circuit short circuit to ground, short circuit to power, open circuit, high resistance Transfer case control module power or ground circuit open circuit, high resistance Transfer case clutch not engaging Transfer case actuator failure Transfer case control module internal failure	NOTE: No DTC will be set during a transfer case clutch over temperature event. When the system has cooled, normal all wheel drive operation will resume and the warning message will extinguish. Check that the wheels and tires comply with the manufacturer's specification for the vehicle. Check the tire pressures and condition. Rectify as necessary Allow the vehicle to cool and retest Using the Jaguar Land Rover approved diagnostic equipment, check the transfer case control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the anti-lock brake system control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the gateway module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary Refer to the electrical circuit diagrams and check the transfer case control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary Check the operation of the transfer case clutch. GO to PINPOINT TEST A .
Noise, vibration and harshness	NOTE: On vehicles up to 18MY, a slight clunk and high pitch whine for approximately 2 seconds may be heard and felt from the transfer case when the vehicle exceeds 36km/h. This will only happen one time per ignition cycle and is due to the procedure of venting the transfer case. This is normal and does not require any service intervention. On vehicles 19MY and onwards, when the vehicle is stationary with the engine running a slight clunk and a high pitch whine for approximately 2 seconds may be heard and felt from the transfer case. This will only happen one time per ignition cycle and is due to the procedure of venting the transfer case. This is normal and does not require any service intervention. Excessive difference in tire circumference due to incorrect size, incorrect pressure or wear All wheel drive system fault Transfer case clutch not disengaging	Check that the wheels and tires comply with the manufacturer's specification for the vehicle. Check the tire pressures and condition. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the transfer case control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index GO to PINPOINT TEST C . and complete the Noise, Vibration and Harshness (NVH) checks as instructed
Judder during low speed maneuvering with high steering inputs	NOTE: At full lock, there will be some tire scrubbing; as the temperature drops, scrubbing may be experienced as stick/slip judder. This is normal and does not require any service intervention. Excessive difference in tire circumference due to incorrect size, incorrect pressure or wear Transfer case clutch not disengaging	NOTE: Make sure that pathfider is fully up to date Using the Jaguar Land Rover approved diagnostic equipment, update the transfer case control module with the latest level software If this is experienced only when the vehicle is cold, this is due to the characteristics of the vehicle No components should be changed GO to PINPOINT TEST C . Check that the wheels and tires comply with the manufacturer's specification for the vehicle. Check the tire pressures and condition. Rectify as necessary GO to PINPOINT TEST C . and complete the NVH checks as instructed
Invalid all wheel drive information displayed on the touchscreen (All Surface Information view)	NOTE: A slight clunk and a high pitch whine for approximately 2 seconds may be heard and felt from the transfer case due to the procedure of venting the transfer case. If the all surface information is displayed on the touchscreen during the venting procedure, the full torque being applied will be visible for approximately 2 seconds. This is normal and does not require any service intervention. Transfer case clutch cooling strategy invoked due to extreme use of the all wheel drive system Transfer case control module power or ground circuit open circuit, high resistance Transfer case clutch not engaging Transfer case actuator failure Transfer case control module internal failure	NOTE: No DTC will be set during a transfer case clutch over temperature event. When the system has cooled, normal all wheel drive operation will resume and the warning message will extinguish. Allow the vehicle to cool and retest Refer to the electrical circuit diagrams and check the transfer case control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary Check the operation of the transfer case clutch. GO to PINPOINT TEST A .
Fluid leak	Transfer case breather pipe blocked Transfer case seal leaks Transmission casing leaks	Check the transfer case breather pipe for blockages and correct installation. A blocked breather can cause over pressure in the unit causing a leak from the seals. Rectify as necessary Refer to the leak detection process Refer to: FLUID LEAKS and apply the leak detection process to the transfer case to correctly identify the leaking position Repair the leak as necessary After rectifying a fluid leak, drain and refill the transfer case fluid. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Transfer Case Replacement