Inspection steps

WARNING: This page is about a different variant/trim than selected.

NOTE: Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

Check of transmission revolution sensor (SP2) installation condition
1. Check the installation condition of the transmission revolution sensor (SP2).
  Criteria: The mounting bolt is not loosened and the sensor is not lifted or tilted.
  
  Fig 1: Checking Transmission Revolution Sensor Installation Condition
  Courtesy of SUBARU OF AMERICA, INC.
  
  NG: Repair of installation condition or replacement of transmission revolution sensor (SP2) (refer to REMOVAL )
  
  OK: Go to next step
Check of transmission revolution sensor (SP2) unit
1. Disconnect the connector L3 of the transmission revolution sensor (SP2).
2. Check the transmission revolution sensor (SP2) unit. (Refer to INSTALLATION )
3. Connect the connector L3 of the transmission revolution sensor (SP2).
  NG: Replacement (SP2)of transmission revolution sensor (SP2) (refer to REMOVAL )
  
  OK: Go to next step

Check wiring harness and connector (transmission control computer ASSY - transmission revolution sensor (SP2))

NOTE: Refer to INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM for checking procedure and precautions of wiring harness and connector

Disconnect the connector A19 of the transmission control computer ASSY.
Disconnect the connector L3 of the transmission revolution sensor (SP2).

Measure the resistance between the terminals. (ECM TERMINAL ARRANGEMENT for terminal arrangement of transmission control computer ASSY)

Resistance

Inspection terminals	Inspection conditions	Standard value
A19-18 (SP2+) - L3-1 (SP2+)	Always	Less than 1 Ω
A19-7 (SP2-) - L3-2 (SP2-)	Always	Less than 1 Ω
A19-18 (SP2+) - chassis ground	Always	10 kΩ or more
A19-7 (SP2-) - chassis ground	Always	10 kΩ or more

Connect the connector L3 of the transmission revolution sensor (SP2).
Connect the connector A19 of the transmission control computer ASSY.
NG: Repair or replacement of wiring harness or connector (transmission control computer ASSY - transmission revolution sensor)

OK: Go to next step

Replacement of transmission control computer ASSY
1. Replace the transmission control computer ASSY. (Refer to TRANSMISSION CONTROL COMPUTER ASSY )
  Next
  
  AT unit correction (refer to INSPECTION FOR PROBLEMS THAT DO NOT NORMALLY OCCUR )