TROUBLE DIAGNOSIS (FOR TROUBLE NOT INDICATED BY ON BOARD
DIAGNOSTIC SYSTEM)
This section describes trouble diagnosis of P/S system parts whose trouble is not indicated by the on-board diag-
nostic system (self-diagnostic function).
When DTC No.12 is indicated by the on-board diagnostic system (self-diagnosis function) and assuredly those
steering basic parts as described in “DIAGNOSIS CHART” in Section 3 are all in good condition, check the follow-
ing power steering system parts which may be a possible cause for each symptom of the steering.
3B1-18
ELECTRICAL POWER STEERING (EPS) SYSTEM
SH410
SYMPTOM
POSSIBLE CAUSE
INSPECTION
Steering wheel
feels heavy
(Perform “IN-
SPECTION OF
STEERING
FORCE” on next
page before
diagnosis.)
Steering wheel installed improperly
(twisted)
Poor performance of torque sensor
Poor performance of motor and clutch
Faulty steering column
Poor performance of VSS
Install steering wheel correctly.
Check torque sensor referring to “ON-VEHICLE
SERVICE of TORQUE SENSOR”.
Check motor and clutch referring to “ON-VE-
HICLE SERVICE of MOTOR ASSEMBLY (WITH
INCORPORATED CLUTCH)”
Replace.
Check VSS referring to Section 6E.
Vehicle pulls to
one side during
straight driving
Poor performance of torque sensor
Check torque sensor referring to “ON-VEHICLE
SERVICE of TORQUE SENSOR”.
Poor recovery
from turns
Poor performance of torque sensor
Faulty steering column
Check torque sensor referring to “ON-VEHICLE
SERVICE of TORQUE SENSOR”.
Replace.
Содержание Zen
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Страница 358: ... SH410 Prepared by Overseas Service Department 1st Ed January 2000 Printing January 2000 356 ...