Inspection steps

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

Connector connection check
1. 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 assembly.
  
  Fig 1: Locating Motor Rotation Angle Sensor Connector (z2)
  Courtesy of SUBARU OF AMERICA, INC.
  
  NG: Connect it securely.
  
  OK: Go to next step

Read the SSM3 data (motor rotation angle)

Use the SSM3 to check the [Motor Rotation Angle]. (Refer to CURRENT DATA DISPLAY & SAVE )

SSM3 screen: [Power Steering] →[Current Data Display & Save]

ITEM DESCRIPTION

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	-

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

NG: Go to Step 3.

OK: Replace the power steering computer assembly (Refer to POWER STEERING COMPUTER )

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

Disconnect the motor rotation angle sensor connector z2 from the power steering computer assembly.

Measure the resistance of the vehicle side connector.

Resistance

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

Fig 2: Power Steering Computer Assembly Connector End View (z2)

Courtesy of SUBARU OF AMERICA, INC.

NG: Replace the steering column assembly (Refer to REMOVAL )

OK: Replace the power steering computer assembly (Refer to POWER STEERING COMPUTER )