Diagnostic System - Suzuki WagonR+ RB310 Service Manual

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 (flashing pattern: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 following power steering system parts which may be a possible cause for each symptom of the steering.
SYMPTOM
Steering wheel feels
heavy (Perform
"INSPECTION OF
STEERING FORCE" on
next page before
diagnosis.)
Vehicle pulls to one side
during straight driving
Poor recovery from turns
ELECTRICAL POWER STEERING (EPS) SYSTEM (IF EQUIPPED) 3B1-27
POSSIBLE CAUSE
D Steering wheel installed improperly
(twisted)
D Poor performance of torque sensor
D Poor performance of motor and
clutch
D Faulty steering column
D Poor performance of VSS
D Poor performance of torque sensor
D Poor performance of torque sensor
D Faulty steering column
INSPECTION
Install steering wheel correctly.
Check torque sensor referring to
"ON-VEHICLE INSPECTION" of "TORQUE
SENSOR".
Check motor and clutch referring to
"ON-VEHICLE INSPECTION" of "MOTOR
ASSEMBLY".
Replace.
Check VSS referring to SECTION 6E.
Check torque sensor referring to
"ON-VEHICLE INSPECTION" of "TORQUE
SENSOR".
Check torque sensor referring to
"ON-VEHICLE INSPECTION" or "TORQUE
SENSOR".
Replace.