Inspection steps

CAUTION: Always perform a steering zero point calibration after replacing the steering column ASSY or power steering computer ASSY. (Refer to WORK SUPPORT )

Connector connection check

Check the connection state of motor rotation angle sensor connector z2.

Criteria: The motor rotation angle sensor connector is properly connected to the power steering computer ASSY.

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OK: Go to next step

NG: Connect it securely.

Reading SSM4 data (motor rotation angle)

Use the SSM4 to check the [Motor Rotation Angle]. (Refer to DATA MONITOR )

SSM4 screen: [Power Steering] →[Select Function] →[Data monitor]

Item name	Description/display range	Normal value	Remarks
Motor rotation angle	Indicates the motor rotation angle. Display range: 0.000 to 360.000deg	Varies between 0 and 360 deg: During engine start, steering operation	Check it while lightly shaking the wire harnesses up/down and left/right.

Criteria: During engine start and steering operation, this varies between 0 - 360 deg.

OK: Go to next step

NG: Go to Step 3.

Replacement of the power steering computer ASSY (Refer to POWER STEERING COMPUTER )

Inspection of the steering column ASSY (motor rotation angle sensor)

Disconnect the motor rotation angle sensor connector z2 from the power steering computer ASSY.
Measure the resistance of the steering column ASSY side connector.

STANDARD VALUE RESISTANCE SPECIFICATION

Inspection terminals	Inspection conditions	Standard value
z2-5(RZV) - z2-7(RZG)	Always (23°C)	27.6 to 41.4Ω
z2-14(RZSN) - z2-7(RZG)	Always (23°C)	75.2 to 112.8Ω
z2-13(RZCS) - z2-7(RZG)	Always (23°C)	73.6 to 110.4Ω

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OK: Go to next step

NG: Replacement of the steering column ASSY (Refer to REMOVAL )

Replacement of the power steering computer ASSY (Refer to POWER STEERING COMPUTER )