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Home >> Subaru >> 2016 >> BRZ Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission (Diagnostics)) >> Automatic Transmission System >> DTC P0965 Pressure Control Solenoid "B" Control Circuit Range/Performance; DTC P0966 Pressure Control Solenoid "B" Control Circuit Low; DTC P0967 Pressure Control Solenoid "B" Control Circuit High >> Inspection steps

Inspection steps

WARNING: This page is about a different variant/trim than selected.
NOTE: ON/OFF status when clutch control solenoid No. 1 (SL2) is normal (Select lever in D position)
Gear position 1st 2nd 3rd 4th 5th 6th
Clutch control solenoid No. 1 (SL2) ON OFF OFF ON OFF OFF
  1. Check of transmission wire unit (clutch control solenoid No. 1 (SL2))
    1. Disconnect the connector L4 of the transmission wire.
    2. Measure the resistance between the terminals.

      Resistance

      Inspection terminals Inspection conditions Standard value
      L4-14 (SL2+) - L4-7 (SL2-) 20°C 5.0 to 5.6 Ω
      L4-14 (SL2+) - chassis ground Always 10 kΩ or more
      L4-7 (SL2-) - chassis ground Always 10 kΩ or more
    3. Connect the connector L4 of the transmission wire.

      NG: Go to Step  4.

      OK: Go to next step

  2. Check wiring harness and connector (transmission wire - transmission control computer ASSY)
    1. Disconnect the connector A18 of the transmission control computer ASSY.
    2. Measure the resistance between the terminals. (ECM TERMINAL ARRANGEMENT  for terminal arrangement)

      Resistance

      Inspection terminals Inspection conditions Standard value
      A18-5 (SL2+) - A18-11 (SL2-) 20°C 5.0 to 5.6Ω
      A18-5 (SL2+) - chassis ground Always 10 kΩ or more
      A18-11 (SL2-) - chassis ground Always 10 kΩ or more
    3. Connect the connector A18 of the transmission control computer ASSY.

      NG: Repair or replacement of wiring harness or connector

      OK: Go to next step

  3. 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  )

  4. Check of clutch control solenoid No. 1 (SL2) unit
    1. Check the clutch control solenoid No. 1 (SL2) unit. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  3)

      NG: Repair or replacement of transmission valve body ASSY (refer to TRANSMISSION VALVE BODY ASSY )

      OK: Repair or replacement of transmission wire (refer to TRANSMISSION WIRE )