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3B1-2 ELECTRICAL POWER STEERING (P/S) SYSTEM
STEERING FORCE INSPECTION ........... 3B1-28
ON-VEHICLE SERVICE ............................... 3B1-29
P/S CONTROL MODULE ......................... 3B1-29
TORQUE SENSOR .................................. 3B1-29
SYSTEM COMPONENTS
This power steering (P/S) system consists of a P/S control module, a torque sensor, a motor and clutch installed
to the steering column.
In this system, the P/S control module determines the level and direction of the assist force for the steering
wheel according to the signals from the torque sensor and the vehicle speed, runs the motor so as to assist
operation of the steering wheel.
P/S control module diagnoses troubles which may occur in the area including the following components when
the ignition switch is ON and the engine is running. When P/S control module detects malfunction, it stops the
motor and clutch control.
• Torque sensor
• Vehicle speed sensor (VSS) circuit
• Engine speed signal circuit
• Motor
• Clutch
• P/S control module
NOTE:
The location of steering wheel/column and ECM to RH steering vehicle are opposite to those location
to LH steering vehicle.
1. Steering wheel
2. Steering column assembly
3. P/S control module
GENERAL DESCRIPTION
4. Torque sensor
5. Motor and clutch
6. Steering gear box
MOTOR AND CLUTCH ............................ 3B1-30
STEERING COLUMN ASSEMBLY .......... 3B1-31
SPECIAL TOOL ........................................... 3B1-31
7. Battery
8. VSS
9. ECM
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