DIAGNOSIS
TSB Revision
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-51
STEP 5. Wiring harness check between A-02 ASC-ECU
connector terminal No.34 and A-59 front wheel speed
sensor <RH> connector terminal No.1 and between A-02
ASC-ECU connector terminal No.33 and A-59 front wheel
speed sensor <RH> connector terminal No.2.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness. Then go to Step 12.
STEP 6. Check for wheel speed sensor <FR> installation
Check how the wheel speed sensor <FR> is installed (Discon-
nection of wheel speed sensor <FR>, loose mounting bolt,
etc.).
Q: Is the check result normal?
YES : Go to Step 7.
NO : Reinstall the wheel speed sensor <FR> correctly
(Refer to
P.35C-288
). Then go to Step 7.
STEP 7. Check for wheel speed sensor <FR> output
current
Refer to
P.35C-277
.
Q: Is the check result normal?
YES : Go to Step 8.
NO : Replace the wheel speed sensor <FR> (Refer to
P.35C-288
). Then go to Step 11.
STEP 8. Check for wheel bearing looseness
NOTE:
.
•
Loose wheel bearing may increase the gap between the
wheel speed sensor <FR> and the wheel speed detection
magnet encoder.
•
Check the wheel bearing <FR> for looseness (Refer to
GROUP 26
−
Wheel Bearing Play Check
P.26-11
).
Q: Is the check result normal?
YES : Go to Step 9.
NO : Replace the wheel bearing <FR> (Refer to GROUP
26
− Front axle hub assembly
P.26-18
). Then go to
Step 12.