11
TROUBLESHOOTING35201110143
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points
NOTES WITH REGARD TO DIAGNOSIS
The Phenomena listed in the following table are not abnormal.
Phenomenon Explanation of phenomenon
System check sound When starting the engine, a thudding sound can sometimes be hear
coming from inside the engine compartment, but this is because the
system operation check is being performed, and is not an abnormality.
ABS operation sound 1.
Sound of the motor inside the ABS hydraulic unit operation (whine).
2.
Sound is generated along with vibration of the brake pedal
(scraping)
3.
When ABS operates, sound is generated from the vehicle chassis
due to repeated brake application and release.
(Thump: suspension: squeak: tyres)
ABS operation (Long braking
distance)For road surfaces suck as snow-covered roads an gravel roads, the
braking distance for vehicles with ABS can sometimes be longer than
that for other vehicles. Accordingly, advise the customer to drive safely
on suck roads by lowering the vehicle speed and not being to
overconfident.
Shock during system operation
checkShock may be felt when the brake pedal is depressed slightly at a low
driving speed. This occurs due to ABS operation check (initial check at
a vehicle speed of 8 km/h), and does not indicate any malfunction.
Diagnosis detection condition can vary depending on the diagnosis code.
Make sure that checking requirements listed in the “Comment” are satisfied when checking the trouble
symptom again.
DIAGNOSIS FUNCTION35201120108
DIAGNOSIS CODES CHECK
Read a diagnosis code by the MUT-II or ABS warning
lamp. (Refer to GROUP 00- How to Use
Troubleshooting/Inspection Service Points.)
ERASING DIAGNOSIS CODES
Refer to GROUP 00 – How to Use
Troubleshooting/Inspection Service Points.
See next page
ABS <2WD> - Troubleshooting35B-5
2
SERIVICE SPECIFICATIONS
ItemsStandard value Limit
With engine running - 50Steering W heel free play mm
With engine stopped 10 or less -
Inner wheel 33°55’-36°55’ -2W D
Outer wheel 30°57’ -
Inner wheel 29°40’-32°40’ -
Steering angle
4W D
Outer wheel 29°30’
Steering gear backlash mm - 0.5
Variation of tie rod end ball joint shaft direction mm - 1.5
Tie rod end ball joint starting torque Nm 3.0 -
Steering gear oil level mm 22 -
4G6 750 ± 100 -Engine idle speed r/min
4D56 750 ± 100 -
Stationairy steering effort N 39.2 or less -
Oil pump relief pressure 8.3 - 9.0 -
Pressure under no-load conditions 0.8 - 1.0 -
Oil pump
pressure MPa
Steering gear retention hydraulic pressure 8.3 - 9.0 -
OFF →
ON 1.5 – 2.0 -Oil pressure switch operating pressure Mpa
ON →
OFF 0.7 – 1.2 -
Mainshaft starting torque Nm 0.49 – 0.78 -
Cross-shaft axial play mm 0.05 or less -
<2WD> 0.98 – 1.47 -Mainshaft total starting torque Nm
<4WD> 0.69 – 1.28 -
Pitman arm ball joint starting torque Nm 0.5 – 1.5 -
Mainshaft axial play mm 0.03 or less -
Backlash between ball groove of rack piston and balls mm - 0.05
2WD 8.8 – 30 -Idler arm sliding resistance N
4WD 2.4 – 16 -
STEERING – Service Specifications37A-3
37100030021
