Check RAS Static/Dynamic Characteristics
Check RAS Static/Dynamic Characteristics1.CHECK (1): RAS ACTUATOR STROKE
Perform CONSULT-III "ACTIVE TEST", and then check the actuator stroke when turning the steering wheel clockwise or counterclockwise by 180 degrees or more.
Neutral position (A)
Actuator stroke (B): 2.8 - 3.0 mm (0.110 - 0.118 in)
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK (2): RAS ACTUATOR STROKE
Perform CONSULT-III "ACTIVE TEST". When turning the steering wheel in neutral position (A), the rear wheel turns clockwise/counterclockwise periodically. At that time, check actuator stroke (B).
Actuator stroke (B): 2.3 - 2.5 mm (0.091 - 0.098 in)
OK or NG
OK >> RAS static/dynamic characteristics inspection is completed.
NG >> GO TO 3.
3.CHECK RAS MOTOR
Check RAS motor itself separated from other parts. Refer to "Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> RAS motor malfunction. Check the stroke again after replacing.
4.CHECK REAR WHEEL STEERING ANGLE SENSOR
Check rear wheel steering angle sensor separated from other parts. Refer to "Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Rear wheel steering angle sensor malfunction. Check the stroke again after replacing.
5.CHECK RAS CONTROL UNIT
Replace RAS control unit. Check the symptom of malfunction again.
Is the malfunction corrected?
YES >> RAS control unit malfunction
NO >> GO TO 6.
6.REPLACE RAS ACTUATOR ASSEMBLY
Replace RAS actuator assembly. Check the symptom of malfunction again.
Is the malfunction corrected?
YES >> RAS actuator malfunction
NO >> Check rear suspension components.
Component Inspection
RAS MOTOR RELAY
1. Check the resistance between RAS motor relay connector B480.
Terminal 1 - 2: Approx. 74 ohms
2. When applying or not supplying approximately 12 V between RAS motor relay connector, check continuity RAS motor relay connector B480.
Terminal 3 - 5
: When applying 12 V voltage: Continuity exist.
: When not applying 12 V voltage: Continuity not exist.
RAS MOTOR
1. Check the resistance RAS motor connector B463.
Terminal 1 - 2: Approx. 0.6 ohms
2. Remove RAS motor from RAS actuator, and then turn the motor by 6 V battery.
If it is normal, it turns.
CAUTION: Do not apply 12 V (battery voltage) to the RAS motor terminal because RAS motor might be damaged.
REAR WHEEL STEERING ANGLE SENSOR
1. Disconnect rear wheel steering angle sensor harness connector B487.
2. Check resistance of rear wheel steering angle sensor connectors B487.