Page 954 of 1449

REAR AXLE -Special Tools/Troubleshooting 27B-8
NumberNameO.D.mm
BoxMB990551Box–
CBaseMB990989Base–
ABCBase
MB990990Tool A25A
Tool
MB990991Tool B28
ToolMB990992Tool C31
Installer adapterBrass bar
Bar (one-touch type) AB
C
Toolbox
Tool numberO.D.mmTool numberO.D.mm
AMB99092639AMB99093363.5
MB99092745MB99093467.5
MB99092849.5MB99093571.5
MB99092951MB99093675.5
MB99093054MB99093779
MB99093157BMB990938-
MB99093261CMB990939-
TROUBLESHOOTING
BASIC TROUBLESHOOTING CONDITIONS
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.
NOTE
Before starting the troubleshooting procedure, make sure that the following items have been checked
okay.
DThe correct steering wheel has been properly installed in the neutral position of the steering column
shaft.
DTire and wheel sizes are correct with correct specifications. Inflation pressure, balance, and wear
conditions are okay.
DWheel alignment is correct.
DThe engine, suspension, and other parts have not been remodeled so as to affect the AYC system.
DIAGNOSIS FUNCTION
READING THE DIAGNOSIS CODES
Read the diagnosis code using MUT-IIor ACD mode indicator
lamp. (Refer to GROUP 00 – How to Use Troubleshooting/
Inspection Service Points.)
NOTE
Connect the MUT-IIto the 16-pin diagnosis connector.
Page 1009 of 1449
31-1
WHEEL AND TYRE
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 2.................
TROUBLESHOOTING 3.......................ON-VEHICLE SERVICE 6.....................
Tyre Inflation Pressure Check 6.................
Tyre Wear Check 6............................
Wheel Runout Check 6.........................
WHEEL AND TYRE 6........................
Page 1011 of 1449
WHEEL AND TYRE -Troubleshooting31-3
TROUBLESHOOTING
SymptomProbable causeRemedyReference page
Rapid wear at
shouldersUnder-inflation
or lack of rotationAdjust the tyre
pressure.31-6
Rapid wear at
centreOver-inflation or
lack of rotation
Cracked treadsUnder-inflationAdjust the tyre
pressure.31-6
Wear on one
sideExcessive
camberInspect the
camber.Refer to
GROUP 33A -
On-vehicle
Service.
Feathered edgeIncorrect toe-inAdjust the toe-in.
Bald spotsUnbalanced
wheelAdjust the
imbalanced
wheels.31-4
Scalloped wearLack of rotation of tyres or worn or
out-of-alignment suspensionRotate the tyres
and check the
front suspension
alignment.Refer to
GROUP 33A -
On-vehicle
Service.
Page 1014 of 1449

WHEEL AND TYRE -On-vehicle Service/Wheel and Tyre31-6
ON-VEHICLE SERVICE
TYRE INFLATION PRESSURE CHECK
NOTE
For information on tyre inflation pressure, refer to the label
attached near the driver’s side door striker.
TYRE WEAR CHECK
Measure the tread depth of tyres.
Limit: 1.6 mm
If the remaining tread depth is less than the limit, replace
the tyre.
NOTE
When the tread depth of tyres is reduced to 1.6 mm or less,
wear indicators will appear.
WHEEL RUNOUT CHECK
Jack up the vehicle so that the wheels are clear of the floor.
While slowly turning the wheel, measure wheel runout with
a dial indicator.
Limit:
ItemSteel wheelAluminium wheel
Radial runout mm1.21.0
Lateral runout mm1.21.0
If wheel runout exceeds the limit, replace the wheel.
WHEEL AND TYRE
Caution
If the vehicle is equipped with the Brembo disc brake,
during maintenance, take care not to contact the parts
or tools to the caliper because the paint of caliper will
be scratched.
INSTALLATION SERVICE POINT
Tighten the wheel nut to the specified torque.
Tightening torque: 98¶10 N·m
Radial
Lateral