Symptom Chart

SYMPTOM	POSSIBLE CAUSES	ACTION
No communication with power steering control module	Power steering control module power or ground circuit open circuit, high resistance High speed CAN bus (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance	Refer to the appropriate system wiring diagram and check the power steering control module power and ground circuits for open circuit, high resistance Using the Jaguar Land Rover Approved Diagnostic Equipment, perform a CAN network integrity test. Refer to the appropriate system wiring diagram and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance
Permanently heavy/notchy steering with the engine running, even after cycling the ignition	Abnormally high friction in steering ball joints or suspension components Abnormally high friction in steering or suspension components due to poor subframe mounting foot alignment or as a result of impact damage Abnormally high friction in steering gear due to water ingress Fouling/abnormally high friction within steering column components Power steering system fault Vehicle speed signal fault	NOTE: Do not damage bellows on steering gear removal. Failure to follow this instruction may result in warranty becoming invalid for steering gear assembly. If the customer has reported notchy steering, turn the steering gear slowly across lock (with the ignition off) and check for any tight or high friction points in the steering travel Disconnect the steering gear from the suspension. Check the suspension system for freedom of movement or abnormally high friction Check the steering and suspension system for correct installation and for signs of impact damage. For additional information on the suspension system refer to SUSPENSION SYSTEMFor steering gear damage inspection see below table Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Disconnect the steering column from the steering gear. Check the steering column and universal joints for freedom of movement or abnormally high friction. For additional information on the steering column refer STEERING COLUMN (REMOVAL AND INSTALLATION) Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs 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 DTCs and refer to the relevant DTC index
Steering catch-up (heavy at fast steering wheel rates)	Power steering control module power or ground circuit open circuit, high resistance Battery/charging system fault Abnormally high friction in steering ball joints or suspension components Abnormally high friction in steering or suspension components due to poor subframe mounting foot alignment or as a result of impact damage Abnormally high friction in steering gear due to water ingress Power steering system fault	NOTE: The system is designed to give a heavier but stable steering feel when a low/high voltage or high temperature is detected. It is recommended to reduce harsh inputs to the steering in these scenarios, for example recently after start-up, extreme cold climate or high electrical system utilization/load. Depending on the level of reduction this could be accompanied by an alert. Refer to the appropriate system wiring diagram and check the power steering control module power and ground circuits for open circuit, high resistance Refer to the relevant section of the service information and test the battery and charging system Disconnect the steering gear from the suspension. Check the suspension system for freedom of movement or abnormally high friction. For additional information on the suspension system refer to SUSPENSION SYSTEM Check the steering and suspension system for correct installation and for signs of impact damage. For additional information on the suspension system refer to SUSPENSION SYSTEM Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index
Permanent loss of steering assistance with engine running, even after cycling ignition	Power steering control module power or ground circuit open circuit, high resistance Battery/charging system fault High speed CAN bus (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance Power steering system fault	Refer to the appropriate system wiring diagram and check the power steering control module power and ground circuits for open circuit, high resistance Refer to the relevant section of the service information and test the battery and charging system Using the Jaguar Land Rover Approved Diagnostic Equipment, perform a CAN network integrity test. Refer to the appropriate system wiring diagram and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index
Intermittent reduction/loss of steering assistance (recovers during drive cycle or after ignition cycle)	Power steering control module power or ground circuit open circuit, high resistance Battery/charging system fault Power steering control module internal temperature above threshold Power steering system fault	NOTE: The system is designed to give a heavier but stable steering feel when a low/high voltage or high temperature is detected. It is recommended to reduce harsh inputs to the steering in these scenarios, for example recently after start-up, extreme cold climate or high electrical system utilization/load. Depending on the level of reduction this could be accompanied by an alert. Refer to the appropriate system wiring diagram and check the power steering control module power and ground circuits for open circuit, high resistance Refer to the relevant section of the service information and test the battery and charging system Check for heat shield damage or mud packing around steering gear and power steering control module. Allow the power steering control module to cool. Consider the environmental temperature Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index
Reduction/loss of assistance when engine stop/start function activates	No fault present. This is a feature to reduce fuel consumption when the vehicle is stationary and the steering is not needed or is not recommended due to tire scrub. If steering is required, recommend prompting a re-start e.g. through clutch pedal depression	Educate customer and refer to the relevant section of the owners handbook
Excessive free play at steering wheel (when no assistance and very light torque is applied to the steering wheel)	Steering wheel fixing loose Steering column fixing(s) loose Steering gear fixing(s) loose Steering linkage toe adjust locknut(s) loose Steering linkage outer ball joint to knuckle fixing(s) loose Steering column pinch bolt loose Steering column universal joint(s) excessively worn Steering gear excessively worn	NOTE: Check for play in steering gear. Do not attempt to adjust the steering gear. Failure to follow this instruction will result in warranty becoming invalid. Refer to any relevant special service messages for checking procedures. Check the steering wheel fixing torque Check the steering column fixings torques Check the steering gear fixings torques Check the steering linkage toe adjust locknut(s) torques Check the steering linkage outer ball joint to knuckle fixing(s) torques Check the steering column pinch bolt torque Check the steering column universal joints for excessive free play Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear
Vehicle tends to pull to one side without brake applied	Wheel/tire size incorrect Uneven/irregular tire wear Brake binding Damaged or worn front/rear suspension components Steering angle sensor fault Abnormally high friction in steering ball joints or suspension components Excessive wear or abnormally high friction in steering gear due to water ingress Steering gear fixing(s) loose Steering linkage toe adjust locknut(s) loose Steering linkage outer ball joint to knuckle fixing(s) loose Steering column pinch bolt loose Lower column pinch bolt loose, steering gear retaining bolts loose Wheel alignment incorrect	NOTE: Vehicles are optimized for pull dependant on the hand of drive and the road crown. Therefore driving on the opposite side of the road may result in pull to one side. Check that the wheels and tires comply with the manufacturer's specification for the vehicle Check the tires for uneven or irregular wear Check brake system for binding Check the front and rear suspension for damage or wear Using the Jaguar Land Rover Approved Diagnostic Equipment, check the steering angle sensor module for related DTCs and refer to the relevant DTC index Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Check the suspension system for freedom of movement or abnormally high friction. Disconnect the steering column from the steering gear. Check the steering column and universal joints for freedom. Check the steering gear for freedom of movement Check the steering gear fixings torques Check the steering linkage toe adjust locknut(s) torques Check the steering linkage outer ball joint to knuckle fixing(s) torques Check the steering column pinch bolt torque Check and adjust wheel alignment as necessary
Poor feel, steering light, not connected, requires constant correction	Wheel/tire size incorrect Uneven/irregular tire wear Damaged or worn front/rear suspension components Steering angle sensor fault Abnormally high friction in steering ball joints or suspension components Excessive wear or abnormally high friction in steering gear due to water ingress Wheel alignment incorrect Power steering system fault	Check that the wheels and tires comply with the manufacturer's specification for the vehicle Check the tires for uneven or irregular wear Check the front and rear suspension for damage or wear Using the Jaguar Land Rover Approved Diagnostic Equipment, check the steering angle sensor module for related DTCs and refer to the relevant DTC index Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Check the suspension system for freedom of movement or abnormally high friction. Disconnect the steering column from the steering gear. Check the steering column and universal joints for freedom. Check the steering gear for freedom of movement Check and adjust wheel alignment as necessary Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index
Steering assistance no longer changes when terrain mode changed	Terrain response system fault Body system fault Car configuration file mismatch with vehicle specification	NOTE: After updating the car configuration file, set the ignition to on and wait 30 seconds before clearing the DTCs. Using the Jaguar Land Rover Approved Diagnostic Equipment, check the terrain response switchpack for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check the central junction box for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check and update the car configuration file as necessary. Clear the DTCs and retest
Park assist function is not working	Tire pressure(s) incorrect Wheel/tire size incorrect Damaged or worn front/rear suspension components Wheel alignment incorrect Fouling/abnormally high friction within steering wheel/steering column components Parking aid system fault Body system fault Power steering system fault Steering angle sensor fault Anti-lock brake system fault Transmission system fault Car configuration file mismatch with vehicle specification	NOTE: After updating the car configuration file, set the ignition to on and wait 30 seconds before clearing the DTCs. Check and adjust the tire pressures as necessary Check that the wheels and tires comply with the manufacturer's specification for the vehicle Check the front and rear suspension for damage or wear Check and adjust wheel alignment as necessary Disconnect the steering column from the steering gear. Check the steering wheel/steering column and universal joints for freedom of movement or abnormally high friction Using the Jaguar Land Rover Approved Diagnostic Equipment, check the parking aid control module for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check the central junction box for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check the steering angle sensor module for related DTCs 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 DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check the transmission control module for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, check and update the car configuration file as necessary. Clear the DTCs and retest
Shimmy through steering wheel without brake applied	Tire damage Uneven/irregular tire wear Wheel imbalance Drive shaft out of balance (normally accompanied by more severe body shake and less steering wheel feedback compared to a shimmy) Damaged or worn front/rear suspension components	NOTE: Shimmy: Defined as a lower frequency feedback/oscillation through the steering, which changes with vehicle speed. A good example of this is when the wheels are out of balance at around 65-85 kph Check the tires for damage Check the tires for flatspots and uneven or irregular wear Check the wheels for imbalance Check the drive shafts Check the front and rear suspension for damage or wear
Harsh, high frequency vibration through steering wheel	Tire pressure(s) incorrect Wheel/tire size incorrect Power steering system fault	Check and adjust the tire pressures as necessary Check that the wheels and tires comply with the manufacturer's specification for the vehicle Using the Jaguar Land Rover Approved Diagnostic Equipment, check the power steering control module for related DTCs and refer to the relevant DTC index
Vehicle turns hard into end lock/lock stops	Steering angle sensor fault New steering components installed and calibration routine not performed Uneven toe setting (tire contact with suspension or body components)	Using the Jaguar Land Rover Approved Diagnostic Equipment, check the steering angle sensor module for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, perform routine - Power Steering Soft Lock End Stops Reset Routine Check and adjust wheel alignment as necessary
Knocking through steering wheel when pulling away and/or braking with no warning light	Steering gear fixing(s) loose Steering column pinch bolt loose Excessive wear in steering system Steering wheel/steering column components fixings loose Damaged or worn front/rear suspension components	NOTE: In the case steering gear bolts are loose, often a creaking is heard when steering near the lock stops position. Check the steering gear fixings torques Check the steering column pinch bolt torque Check steering column components for excessive wear and rectify as necessary Check the steering wheel/steering column fixings torques Check the front and rear suspension for damage or wear
Scraping from inside of vehicle when turning the steering wheel	Steering column fouling components Clockspring mechanism fouling Uneven toe setting (tire contact with suspension or body components)	Check the steering column for fouling on cowls, carpets, or harnesses Check the clockspring mechanism for security Check and adjust wheel alignment as necessary
Excessive noise (refer to further applicable special service message information) with no warning light, instability, grinding	Tire pressure(s) incorrect Wheel/tire size incorrect Damaged or worn front/rear suspension components Foul condition Water ingress to the steering gear Clockspring internal failure	Check and adjust the tire pressures as necessary Check that the wheels and tires comply with the manufacturer's specification for the vehicle Check the front and rear suspension for damage or wear Check for a foul condition between the steering column and the body. Check for a foul condition between the steering gear and the body Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Install a new clockspring
Excessive noise (refer to further applicable special service message information) with amber warning light, instability, grinding	Tire pressure(s) incorrect Wheel/tire size incorrect Damaged or worn front/rear suspension components Foul condition Water ingress to the steering gear Clockspring internal failure Transmission system fault Power steering control module is not configured correctly Abnormally high friction in steering or suspension components due to poor subframe mounting foot alignment or as a result of impact damage	Check and adjust the tire pressures as necessary Check that the wheels and tires comply with the manufacturer's specification for the vehicle Check the front and rear suspension for damage or wear Check for a foul condition between the steering column and the body. Check for a foul condition between the steering gear and the body Check the steering gear for freedom of movement or abnormally high friction. Remove the steering gear boots and check for evidence of water inside the steering gear boots. If evidence of water ingress is present, replace the steering gear Install a new clockspring Using the Jaguar Land Rover Approved Diagnostic Equipment, check the transmission control module for related DTCs and refer to the relevant DTC index Using the Jaguar Land Rover Approved Diagnostic Equipment, re-configure the power steering control module with the latest level software Check the steering and suspension system for correct installation and for signs of impact damage
Excessive noise (refer to further applicable special service message information), zipper, whoop, rattle	Foul condition Power steering control module power or ground circuit open circuit, high resistance Battery/charging system fault Steering gear wear excessive Abnormally high friction in steering or suspension components due to poor subframe mounting foot alignment or as a result of impact damage Uneven toe setting (tire contact with suspension or body components)	Check for a foul condition between the steering column and the body. Check for a foul condition between the steering gear and the body Refer to the appropriate system wiring diagram and check the power steering control module power and ground circuits for open circuit, high resistance Refer to the relevant section of the service information and test the battery and charging system Install a new steering gear Check the steering and suspension system for correct installation and for signs of impact damage Check and adjust wheel alignment as necessary