tire size JAGUAR XFR 2010 1.G Workshop Manual

PINPOINT TEST B : TIP-IN MOAN TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK THE AIR CLEANER 1 Check the air cleaner.
Check the air cleaner, inlet tube, outlet tube, resonators and all other components associated with
the air induction system for correct installation and tightness of all connections. Are the components OK? Yes
GO to B2. No
Correct the condition. Repeat the Road Test as outlined. B2: CHECK THE EXHAUST SYSTEM 1 Carry out the exhaust system neutralizing procedure in this section. Is the exhaust system OK? Yes
GO to B3. No
Repair as necessary. Restore vehicle. Repeat the Road Test as outlined. B3: CHECK THE POWER STEERING 1 Remove the auxiliary drive belt and test for tip-in moan. Is the tip-in moan OK? Yes
Repair the power steering as necessary. For additional information, refer to Section 211-00.
No
Check and install new engine/transmission mounts as necessary. Repeat Road Test as outlined.
PINPOINT TEST C : IDLE BOOM/SHAKE/VIBRATION/SHUDDER TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: CHECK CABLE/HOSES 1 Check the engine compartment for any component that may be grounding between the engine and body or chassis. Example: air conditioning (A/C) hoses. Are the components OK? Yes
GO to C2. No
Correct the condition. Repeat the Road Test as outlined. C2: CHECK THE COOLING RADIATOR 1 Check the engine cooling radiator mountings and bushings for security and condition. Check the radiator installation for any component that may have a touch condition. Are the installation and bushings OK? Yes
GO to C3. No
Correct the condition. Repeat the Road Test as outlined. C3: CHECK THE EXHAUST SYSTEM 1 Carry out the exhaust system neutralizing procedure in this section. Is the exhaust system OK? Yes
Check and install new engine/transmission mounts as necessary. Repeat Road Test as outlined.
No
Repair as necessary. Repeat Road Test.
PINPOINT TEST D : WHEEL END VIBRATION ANALYSIS TEST CONDITIONS DETAILS/RESULTS/ACTIONS D1: INSPECT THE TIRES 1 Inspect the tires.
Raise and support the vehicle. REFER to: (100-02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
Inspect the tires for:
Correct tire size
Tire/wheel compatibility
Wear or damage

Wheel nuts 125 92 - Tire Pressures
Summer Tyres (ROW) Up to 100 mph Over 100 mph 235/55R17 99W Front 2.3 bar (34 lbf/in²) 2.3 bar (34 lbf/in²) Rear 2.3 bar (34 lbf/in²) 2.3 bar (34 lbf/in²) 245/45R18 100 W&Y X/L Front 2.1 bar (31 lbf/in²) 2.6 bar (38 lbf/in²) Rear 2.1 bar (31 lbf/in²) 2.6 bar (38 lbf/in²) 245/40R19 98 Y X/L Front 2.1 bar (31 lbf/in²) 2.5 bar (36 lbf/in²) Rear 2.1 bar (31 lbf/in²) 2.5 bar (36 lbf/in²) 235/35R20 97Y X/L Front 2.3 bar (34 lbf/in²) 2.3 bar (34 lbf/in²) Rear - - 285/30R20 99y X/L Front - - Rear 2.3 bar (34 lbf/in²) 2.3 bar (34 lbf/in²) Tire Pressures
All Season Tyres (USA & Canada) 0 mph - 121 mph 245/45R18 96H Front 2.1 bar (31 lbf/in²) Rear 2.1 bar (31 lbf/in²) 245/40R19 94H Front 2.4 bar (35 lbf/in²) Rear 2.4 bar (35 lbf/in²) Wheel Specification
Wheel Type Wheel Size Libra 7.5 x 17 Cygnus 8.5 x 18 Venus 8.5 x 18 Auriga 8.5 x 19 Carelia 8.5 x 19 Volans (front) 8.5 x 20 Volans (rear) 9.5 x 20 Selena 8.5 x 20 Tires and Fitment

Description Wheels Type
Tire Type Vehicles with 2.7L Diesel and 3.0L engine Libra 235/55R17 99W Pirelli P7 Cygnus 245/45R18 100W Dunlop SP01 Vehicles without supercharger Cygnus 245/45R18 100W Dunlop SP01 Vehicles without supercharger (ROW) Venus 245/45R18 100Y Pirelli PZero Carelia 245/40R19 98Y Dunlop SP01 Auriga 245/40R19 98Y Dunlop SP01 Vehicles without supercharger (ROW) and vehicles with supercharger (USA &
Canada) Cygnus
245/45R18 96H Continental
ProContact Auriga
245/40R19 96H Continental
ProContact Vehicles with supercharger
Volans (front) 255/35R20 97Y Pirelli PZero Volans (rear) 285/30R20 99Y Pirelli PZero

1 Tire valve and pressure sensor 2 Tire fitting/removal tool initial start position 3 High tire and bead tension area 4 Low tire and bead tension area When removing the tire, the bead breaker must not be used within 90 degrees of the tire valve in each direction on each side
of the tire.

When using the tire removal machine, the fitting arm start position must be positioned as shown in the tire changing
illustration for each side of the tire. The wheel can then be rotated through 180 degrees in a counter-clockwise direction. This
will relieve tension from the tire bead allowing the remaining 180 degrees of the tire to be manually pulled from the rim.

When refitting the tire, position the fitting arm as shown. Rotate the tire and take care that the bead on the low tension side
of the tire does not damage the sensor.

Run-Flat Tires

Run-flat tires are not available on vehicles from 2011MY.

TREAD Act - NAS Only

Vehicles supplied to the North American markets must comply with the legislation of the Transport Recall Enhancement,
Accountability and Documentation (TREAD) act. Part of the requirement of the TREAD act is for the vehicle to display a label
which defines the recommended tire inflation pressure, load limits and maximum load of passengers and luggage weight the
vehicle can safely carry. This label will be specific to each individual vehicle and will be installed on the production line. The
label is positioned on the driver's side 'B' pillar on NAS vehicles and the inside rear face of the LH door on Canadian
specification vehicles.

This label must not be removed from the vehicle. The label information will only define the specification of the vehicle as it
came off the production line. It will not include dealer or owner fitted accessory wheels and tires of differing size from the
original fitment.

If the label is damaged or removed for body repair, it must be replaced with a new label specific to that vehicle. A new label is
requested from Jaguar parts and will be printed specifically for the supplied VIN of the vehicle.

Tire Pressure Monitoring System (TPMS)

The Tire Pressure Monitoring System (TPMS) is a driver assistance system which assists the driver to maintain the tire
pressures at the optimum level. TPMS is standard fitment on NAS vehicles and an optional fitment in other markets. TPMS

DTC Description Possible Cause Action U0142-00
Lost Communication With
Body Control Module "B"
-no sub type information
CAN bus fault
Auxiliary Junction Box fault Refer to the electrical wiring diagrams and check
Auxiliary Junction Box power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0155-00
Lost Communications With
Instrument Panel Cluster
(IPC) Control Module-no
sub type information
CAN bus fault
Instrument cluster fault Refer to the electrical wiring diagrams and check
instrument cluster power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0164-00
Lost Communication With
HVAC Control Module-no
sub type information
CAN bus fault
Climate control module
fault Refer to the electrical wiring diagrams and check
climate control module power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0300-00
Internal Control Module
Software Incompatibility-no
sub type information
Incompatible tire pressure
monitoring system module
for vehicle CAN network Check correct tire pressure monitoring system module
is installed to vehicle specification, otherwise
suspect the Auxiliary Junction Box. U0415-00
Invalid Data Received From
Anti-Lock Brake System
(ABS) Control Module-no
subtype information
Invalid data received from
the Anti-Lock Braking
System Control Module
CAN bus fault
Anti-Lock Braking System
fault Check Anti-Lock Braking System control module and
Instrument Cluster for related DTCs and refer to the
relevant DTC Index. Carry out CAN network integrity
tests. U0424-00
Invalid Data Received From
HVAC Control Module-no
sub type information
HVAC control module fault Check climate control module for related DTCs and
refer to relevant DTC Index. U1A14-49
CAN Initialisation Failure-
internal electronic failure
Tire pressure monitoring
system module fault Install a new tire pressure monitoring module. Refer
to the new module/component installation note at
the top of the DTC Index. U3000-55
Control Module-not
configured
Tire pressure monitoring
system configuration data
is invalid Check and amend the car configuration file. U3000-87
Control Module-missing
message
Tire pressure monitoring
system configuration data
not received Check the Auxiliary Junction Box for related DTCs and
refer to the relevant DTC Index. Carry out CAN
network integrity test. U3002-81
Vehicle Identification
Number - invalid serial data
received
Tire pressure monitoring
system module and vehicle
VIN mis-match
NOTE: This DTC indicates that the tire pressure
monitoring system module is not the original part
installed to the vehicle at the factory/dealer and
could have been substituted. Refer to the note above
the DTC index about replacing components which may
remain under manufacturer warranty.

Re-install the original or a new tire pressure monitoring system control module.
Component Tests

Wheels and Tires

For wheel and tire specification information (pressures, torques, etc).

When replacing wheels or tires, local legislation regarding health and safety must be complied with.

If the vehicle has a Tire Pressure Monitoring System installed, only Jaguar approved wheels and tires should be used. If the
wheel and tire size is changed (for example from R18 to R20) the Tire Pressure Monitoring System module should be updated
with the correct pressure information appropriate to the new wheel and tire set. Update the Tire Pressure Monitoring System
module using the Jaguar approved diagnostic system.
As a general guideline, only replace tires in pairs or as a set, and only with tires of equivalent size and specification.
Confirm the symptoms of the customer complaint.
As much information as possible should be gathered from the driver to assist in diagnosing the cause(s).

1. Before a road test, carry out a basic inspection to make sure the vehicle is safe and legal to drive.

Basic inspection

Correct tire inflation
Legal tire tread depth

Measure the resistance between: C3MC39A, harness side C4MC43, harness side Pin 7 Pin 1 Is the resistance greater than 5 ohms?
Yes
REPAIR the high resistance circuit. This circuit contains
intermediate connector, C44-Y. For additional information, refer to
the wiring diagram. Clear the DTC and run an On Demand Self Test
(ODST) using the manufacturer approved diagnostic system to
confirm rectification.
No
INSTALL a new rear right hand low-frequency initiator. REFER to:
Tire Pressure Monitoring System (TPMS) Rear Antenna (204-04 Wheels and Tires, Removal and Installation).
PINPOINT TEST F : MISSING, INCOMPATIBLE OR DEFECTIVE RUNNING TIRE LOW PRESSURE SENSOR
OR RECEIVER TEST
CONDITIONS DETAILS/RESULTS/ACTIONS F1: CHECK FOR CORRECT WHEEL AND TIRE ASSEMBLY AND TIRE LOW PRESSURE SENSOR 1 Establish that a full size running wheel and tire assembly has a tire low pressure sensor installed. As a visual confirmation, a tire low pressure sensor has a metal valve stem rather than a rubber one and
cannot be installed to a mini/space saver spare wheel. Is a full size wheel and tire assembly with tire low pressure sensor installed?
Yes
GO to F2. No
Install the correct wheel and tire assembly or tire low pressure sensor, of correct frequency, in accordance
with that defined in the manufacturer approved diagnostic system new tire low pressure sensor
application. F2: CHECK FOR ADDITIONAL DTCS 1 Remove the Tire Pressure Monitoring System power supply fuse and re-install it. Clear DTCs and leave the vehicle stationary for 15 minutes, then drive it at a speed greater than 15.5 mph (25 kph)
continuously for at least 10 minutes.
(Note: If the vehicle speed drops below this value, the drive time to complete the test will need to be increased.)

The use of the manufacturer approved diagnostic system, and the datalogger signal ’Tire pressure
monitor system status – learn mode status’ will verify the completion of the test when the value returns
to ‘Inactive’. 2 Check for additional DTCs C1A5631, C1A5831, C1A6031, C1A6231, with identical time stamps. Have all four DTCs logged with identical time stamps in the tire pressure monitoring system module?
Yes
Replace the tire pressure monitoring system radio frequency receiver.
REFER to: Tire Pressure Monitoring System (TPMS) Receiver (204-04 Wheels and Tires, Removal and Installation).
No
GO to F3. F3: VERIFY THE POSITION OF THE DEFECTIVE TIRE LOW PRESSURE SENSOR 1 Check tire pressure monitoring system DTCs. Are any C1AXX31 DTCs logged?
Yes
Install the correct tire low pressure sensor, of correct frequency, in accordance with that defined in the
manufacturer approved diagnostic system new tire low pressure sensor application, to the position
identified by the logged DTC.
REFER to: Tire Low Pressure Sensor (204-04 Wheels and Tires, Removal and Installation). No
No further action is required.
(Note: The use of the manufacturer approved diagnostic system, and the datalogger signal ’Tire pressure monitor system status – learn completed successfully’ will verify the successful completion of the test.)
PINPOINT TEST G : LOCALIZATION FAILURE TEST
CONDITIONS DETAILS/RESULTS/ACTIONS G1: CHECK FOR ADDITIONAL DTCS 1 Check for additional DTCs: C1A5711, C1A5712, C1A5713. C1A5911, C1A5912, C1A5913, C1A6111, C1A6112, C1A6113, C1A6311, C1A6312, C1A6313. Are any of the DTCs listed above also logged?
Yes
Refer to the DTC Index and remedial actions.
No
GO to G2. G2: CHECK FOR ADDITIONAL DTCS

1 Check for additional DTCs: C1A5631, C1A5831, C1A6031 or C1A6231 Is a C1A5631, C1A5831, C1A6031 or C1A6231 DTC also logged?
Yes
Refer to the DTC Index and remedial actions.
No
GO to G3. G3: CHECK INITIATOR INSTALLATION 1 Check for correct installation of Initiator. REFER to: (204-04 Wheels and Tires) Tire Pressure Monitoring System (TPMS) Front Antenna (Removal and Installation), Tire Pressure Monitoring System (TPMS) Rear Antenna (Removal and Installation). Is the Initiator correctly installed?
Yes
GO to G4. No
Rectify as required. REFER to: (204-04 Wheels and Tires)
Tire Pressure Monitoring System (TPMS) Front Antenna (Removal and Installation), Tire Pressure Monitoring System (TPMS) Rear Antenna (Removal and Installation). G4: CHECK FOR SHORT CIRCUIT IN INITIATOR HARNESS 1 Locate and remove module blue connector L. 2 Measure the resistance across the relevant initiator circuits within the blue connector. Is the resistance less than 1 Ohm?
Yes
A value of less than 1 Ohm indicates a short circuit, rectify the short circuit as required.
No
Install the correct tire low pressure sensor, of correct frequency, in accordance with that defined in the
manufacturer approved diagnostic system new tire low pressure sensor application, to the position
identified by the logged DTC.
REFER to: Tire Low Pressure Sensor (204-04 Wheels and Tires, Removal and Installation).
PINPOINT TEST H : SPARE TIRE LOW PRESSURE SENSOR NO OPERATION TEST
CONDITIONS DETAILS/RESULTS/ACTIONS H1: ESTABLISH THE TYPE OF SPARE WHEEL AND TIRE ASSEMBLY INSTALLED 1 Establish the type of spare wheel and tire assembly Installed. Is the spare wheel a mini/space saver type? Yes
Tire low pressure sensors are not installed to mini/space-saver spare wheels. Tire low pressure sensors
are installed to full size spare wheels only. The DTC is to be ignored and no repair action is required.
No
GO to H2. H2: ESTABLISH THAT THE SPARE WHEEL HAS A TIRE LOW PRESSURE SENSOR INSTALLED 1 Establish that the spare wheel has a tire low pressure sensor installed, considering the following additional information:

a) As a visual confirmation, the tire low pressure sensor has a metal valve stem rather than a rubber
one. Is a tire low pressure sensor installed? Yes
GO to H3. No
A new spare tire low pressure sensor should be installed. Note: Refer to the note above the DTC index
about replacing components which may remain under manufacturer warranty. Refer to the relevant section
of the workshop manual. H3: CONFIRM OPERATION OF THE SPARE WHEEL PRESSURE SENSOR 1 Deflate the spare tire, in close proximity to the vehicle, until it is completely deflated. 2 Complete an ignition cycle to ignition on and verify that the instrument cluster reports a spare tire pressure warning for approximately 20 seconds. 3 Re-inflate the spare tire, in close proximity to the vehicle, to the recommended spare tire pressure. 4 Complete an ignition cycle to ignition on and verify that the instrument cluster no longer reports a spare tire pressure warning. Does the instrument cluster continue to report a spare tire pressure warning? Yes
GO to H4. No
No repair action is required. It is possible that the customer may have placed items in the vehicle's luggage compartment that prevented correct RF reception. H4: VERIFY THAT THE SPARE TIRE LOW PRESSURE SENSOR ID HAS BEEN CORRECTLY PROGRAMMED TO THE
MODULE 1 Remove tire low pressure sensor. Record the 8 character hexadecimal ID written on the casing. 2 Use the approved diagnostic system to read the spare tire sensor ID from the module. Refer to the relevant procedure in the workshop manual. 3 Compare the IDs from steps 1 & 2.

1 Ignition off. 2 Disconnect the Tire Pressure Monitoring System Receiver electrical connector, C3MC45. 3 Disconnect the Tire Pressure Monitoring System Control Module electrical connector, C3MC39B. 4 Measure the resistance between C3MC45, harness side C3MC39B, harness side Pin 1 Pin4 Is the resistance less than 5 ohms? Yes
GO to J3. No
REPAIR the high resistance/open circuit in wiring harness. J3: C1D1987 CHECK EXTERNAL RECEIVER 1 Reconnect the Tire Pressure Monitoring System Control Module electrical connector, C3MC39B. 2 Reconnect the Tire Pressure Monitoring System Receiver electrical connector, C3MC45. 3 Using manufacturer approved diagnostic system run On Demand Self Test (0x0202). Is the DTC C1D1987 set? Yes
Replace Tire Pressure Monitoring Receiver.GO to J4. No
Investigate possible cause of intermittent failure. J4: C1D1987 CHECK TIRE PRESSURE MONITORING SYSTEM CONTROL MODULE 1 Using manufacturer approved diagnostic system run On Demand Self Test (0x0202). Is the DTC C1D1987 set? Yes
Replace Tire Pressure Monitoring System Control Module.
No
Test is complete. No further action is required. J5: C1D1987 CHECK WHEELS HAVE TIRE SENSORS INSTALLED

NOTE: As a visual check, a tire low pressure sensor has a metal valve stem rather than a rubber one
and cannot be installed to a mini/space saver spare wheel. 1 Check that all full size running wheel and tire assemblies have tire low pressure sensors installed. Is a full size wheel and tire assembly with tire low pressure sensor installed to all running wheel positions? Yes
GO to J6. No
If agreed with the customer install correct tire low pressure sensors in accordance with that defined in
the manufacturer approved diagnostic system new tire low pressure sensor application, as required.
(Note: Confirm why the vehicle has non-Tire Pressure Monitoring System w he e l & tire assemblies installed before installing tire low
pressure sensors, which are not to be claimed under vehicle warranty.) J6: C1D1987 CHECK TIRE SENSOR COMPATIBILITY TO TIRE PRESSURE MONITORING SYSTEM RECEIVER 1 Remove tire low pressure sensor from 1 wheel. 2 Verify the tire low pressure sensor part number from the information on the casing. Is the tire low pressure sensor the correct part for the vehicle? Yes
Replace Tire Pressure Monitoring Receiver.Carry out the following to verify repair.
Remove the Tire Pressure Monitoring System power supply fuse and re-install it. Clear DTCs and leave
the vehicle stationary for 15 minutes, then drive it at a speed greater than 15.5 mph (25 kph)
continuously for at least 10 minutes.
(Note: If the vehicle spe e d drops below this value, the drive time to complete the test will need to be increased. The use of the manufacturer approved diagnostic system, and the datalogger signal ’Tire pressure monitor system status – learn mode status’ will verify the completion of the test w he n the value returns to ‘Inactive’.)
No
Install the correct tire low pressure sensor, of correct frequency, in accordance with that defined in the
manufacturer approved diagnostic system new tire low pressure sensor application, to the position(s)
identified.
(Note: Confirm why the vehicle has incorrect Tire Pressure Monitoring System w he e l & tire assemblies installed before installing tire low
pressure sensors, which are not to be claimed under vehicle warranty.)

Brake System - General Information - Brake System
Diagnosis and Testing

Principle of Operation Published: 11-May-2011

For a detailed description of the brake system, refer to the relevant Description and Operation sections in the workshop
manual. REFER to:

Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07, Description and Operation).

Inspection and Verification

Visually examine the front and rear wheel and tire assemblies for damage such as uneven wear patterns, tread worn out or
sidewall damage. Verify the tires are the same size, type and, where possible, same manufacturer. Replace the damaged
wheel or excessively worn tire.
Wheels and tires must be cleared of any foreign matter and tire pressures adjusted to the correct specification.

If the tires exhibit uneven wear or feathering, the cause must be corrected. Check the steering and suspension components for
damage or wear and, if necessary, check and adjust front wheel alignment. REFER to: (204-00 Suspension System - General
Information)
Specifications (Specifications), Front Toe Adjustment (General Procedures).
Visual Inspection
Mechanical Electrical
Brake master cylinder
Brake caliper piston(s)
Brake discs
Wheel bearings
Brake pads
Power brake booster
Brake pedal linkage
Brake booster vacuum hose
Tires
Debris
Parking brake actuator
Parking brake module
Parking brake switch
Damaged or corroded wiring harness
Brake master cylinder fluid level switch Road Test

Carry out a road test to compare actual vehicle braking performance with the performance standards expected by the driver.
The ability of the test driver to make valid comparisons and detect performance deficiencies will depend on experience.

The driver should have a thorough knowledge of brake system operation and accepted general performance guidelines to make
good comparisons and detect performance concerns.

An experienced brake technician will always establish a route that will be used for all brake diagnosis road tests. The roads
selected will be reasonably smooth and level. Gravel or bumpy roads are not suitable because the surface does not allow the
tires to grip the road equally. Crowned roads should be avoided because of the large amount of weight shifted to the low set
of wheels on this type of road. Once the route is established and consistently used, the road surface variable can be
eliminated from the test results.

Before a road test, obtain a complete description of the customer concerns or suspected condition. From the description, the
technician's experience will allow the technician to match possible causes with symptoms. Certain components will be tagged
as possible suspects while others will be eliminated by the evidence. More importantly, the customer description can reveal
unsafe conditions which should be checked or corrected before the road test. The description will also help form the basic
approach to the road test by narrowing the concern to specific components, vehicle speed or conditions.

Begin the road test with a general brake performance check. Keeping the description of the concern in mind, test the brakes at
different vehicle speeds using both light and heavy pedal pressure. To determine if the concern is in the front or rear braking
system, use the brake pedal and then use the parking brake control. If the condition (pull, vibration, pulsation) occurs only
with the parking brake, the concern is in the rear brake system.

Published: 09-Jul-2014
Anti-Lock Control - Stability Assist - Anti-Lock Control - Stability Assist
Diagnosis and Testing

Principle of Operation

For a detailed description of the Anti-Lock Control - Stability Assist system, refer to the relevant Description and Operation
sections in the workshop manual. REFER to: (206-09 Anti-Lock Control - Stability Assist)

Anti-Lock Control - Stability Assist (Description and Operation), Anti-Lock Control - Stability Assist (Description and Operation), Anti-Lock Control - Stability Assist (Description and Operation).
Inspection and Verification


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
1. Verify the customer concern.
2. Confirm if the Anti-Lock Brake System (ABS) warning light was illuminated, or still is.

NOTE: An intermittent fault may allow the warning light to go off. This does not necessarily mean the fault is not
present. Some warnings will appear to clear when the ignition is cycled. This is often because the warning has flagged as a
result of one of the vehicle's on-board diagnostic routines having run to detect the fault. If the same routine is not run when
the ignition status is set to ON, the warning will not re-flag until the routine does run.
3. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Brake fluid level
Vacuum system
Wheel speed sensor installation
Wheel speed sensor air gap
Magnetic pulse wheel(s) (damaged/contaminated)
Steering angle sensor
Yaw rate sensor and accelerometer cluster installation
Incorrect wheel or tire size
Warning light operation
Fuses
Wheel speed sensors
Connectors/Pins
Harnesses
Steering wheel rotation sensor
Yaw rate sensor and accelerometer cluster
Booster pressure sensor
Hydraulic Control Unit (HCU)
4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step.
5. If the cause is not visually evident check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

DTC Index

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Section 100-00.
REFER to: Diagnostic Trouble Code (DTC) Index - DTC: Anti-Lock Braking System (ABS) (100-00 General Information, Description and Operation).

Symptom Possible Causes Action Suspension System - General
Information)
Camber and Caster Adjustment (General Procedures),
Front Toe Adjustment (General Procedures),
Rear Toe Adjustment (General Procedures).
Vehicle is unevenly loaded or overloaded
Notify the customer of incorrect
vehicle loading




Steering gear is not correctly adjusted
CAUTION: DO NOT attempt to
adjust the steering gear yoke. Failure to
follow this instruction will invalidate the
steering gear warranty

Check and install a new steering
gear as required, refer to the
new module/component
installation note at the top of
the Symptom Charts


Loose, damaged or worn front suspension
components
Check/tighten and install new
front suspension components as
required.
REFER to: Specifications (204-00 Suspension System - General
Information, Specifications).


Loose, damaged or worn rear suspension
components
Check/tighten and install new
rear suspension components as
required.
REFER to: Specifications (204-00 Suspension System - General
Information, Specifications).


Incorrect brake operation
For information on diagnosis of
the brake system.
REFER to: Brake System (206-00 Brake System - General
Information, Diagnosis and
Testing).

Incorrect underbody alignment
Set underbody alignment
referring to the Removal and
Installation procedures in section
502-00 of the workshop manual
for instruction








Vehicle wanders from
side to side when driven
straight ahead and the
steering wheel is held in
a firm position


Incorrect tire pressure or tire size
Check and adjust the tire
pressures as required.
REFER to: Specifications (204-04 Wheels and Tires,
Specifications).
Check and install a new tire as
required
Vehicle is unevenly or excessively loaded
Notify the customer of incorrect
vehicle loading



Incorrect toe adjustment
Check and adjust as required.
REFER to: (204-00 Suspension
System - General Information)
Camber and Caster Adjustment (General Procedures),
Front Toe Adjustment (General Procedures),
Rear Toe Adjustment (General Procedures).