PROBLEM SYMPTOMS TABLE
HINT:
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Steering is heavy. |
Front tires (Improperly inflated, unevenly worn) |
|
|
Front wheel alignment (Incorrect) |
|
|
|
Front suspension (Lower ball joint) |
|
|
|
Power steering gear (for 2GR-FE) |
|
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Steering column assembly |
|
|
|
Torque sensor (Built into steering column assembly) |
- |
|
|
Power steering motor |
- |
|
|
Speed sensor |
|
|
|
Skid control ECU (Built into brake actuator) |
- |
|
|
Battery and power source system |
- |
|
|
Power steering ECU power source voltage and relay |
- |
|
|
Power steering ECU assembly |
|
|
|
Steering effort differs between right and left or is uneven. |
Rotation angle sensor initialization and torque sensor zero point calibration |
|
|
Front tires (Improperly inflated, unevenly worn) |
|
|
|
Front wheel alignment (Incorrect) |
|
|
|
Front suspension (Lower ball joint) |
|
|
|
Power steering gear (for 2GR-FE) |
|
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Torque sensor (Built into steering column assembly) |
- |
|
|
Steering column assembly |
|
|
|
Power steering motor |
- |
|
|
Power steering ECU assembly |
|
|
|
While driving, steering effort does not change in accordance with vehicle speed or the steering wheel does not return properly. |
Front suspension (Lower ball joint) |
|
|
Speed sensor |
|
|
|
Skid control ECU (Built into brake actuator) |
- |
|
|
Combination meter |
|
|
|
Torque sensor (Built into steering column assembly) |
- |
|
|
Power steering motor |
- |
|
|
Power steering gear (for 2GR-FE) |
|
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Power steering ECU assembly |
|
|
|
A knocking (or cranking) sound occurs when turning the steering wheel while power steering is operating. |
Front suspension (Lower ball joint) |
|
|
Steering intermediate shaft |
- |
|
|
Power steering gear (for 2GR-FE) |
|
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Noise occurs when turning the steering wheel during low speed driving. |
Power steering gear (for 2GR-FE) |
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Steering column assembly |
|
|
|
Power steering ECU assembly |
|
|
|
High-pitched sounds (squeaking) occur when turning the steering wheel slowly with the vehicle stopped. |
Power steering gear (for 2GR-FE) |
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Power steering motor |
- |
|
|
The steering wheel vibrates and noise occurs when turning the steering wheel from lock to lock. |
Power steering gear (for 2GR-FE) |
|
|
Power steering gear (for 1AR-FE) |
|
|
|
Steering column assembly |
|
|
|
PS warning light remains on. |
Proceed to PS warning light remains on |
|
Calibration
Terminals Of EcuDiagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
When troubleshooting OBD II (On-Board Diagnostics) vehicles, an OBD
II scan tool (complying with SAE J1987) must be connected to the DLC3 (Data
Link Connector 3) of the vehicle. Various data in the vehicle ECM ( ...
System Description
SYSTEM DESCRIPTION
1. BRIEF DESCRIPTION
(a) The Control Area Network (CAN) is a serial data communication system for
real time application. It is a vehicle multiplex communication system which has
a high communication speed and the ability to detect malf ...
Lost Communication with Automatic High Beam Sensor (B2432)
DESCRIPTION
The DTC is stored when the AFS ECU (headlight swivel ECU assembly) detects malfunctions
in the LIN communication system.
DTC No.
DTC Detection Condition
Trouble Area
B2432
Malfunction ...