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Home >> Subaru >> 2014 >> BRZ Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transaxle (Diagnostics)) >> Automatic Transmission System >> DTC P2762 Torque Converter Clutch Pressure Control Solenoid Control Circuit Range/Performance; DTC P2763 Torque Converter Clutch Pressure Control Solenoid Control Circuit High; DTC P2764 Torque Converter Clutch Pressure Control Solenoid Control Circuit Low >> Inspection steps

Inspection steps

WARNING: This page is about a different variant/trim than selected.
  1. Transmission wire unit check (lock-up control solenoid (SLU))
    1. Disconnect the connector L4 of the transmission wire.
    2. Measure the resistance between the terminals.
      RESISTANCE

      Inspection terminals Inspection conditions Standard value
      L4-12 (SLU+) - L4-5 (SLU-) 20°C 5.0 to 5.6 Ω
      L4-12 (SLU+) - chassis ground Always 10 k Ωor more
      L4-5 (SLU-) - chassis ground Always 10 k Ωor more
    3. Connect the connector L4 of the transmission wire.

      NG: Step  4

      OK: Go to Next Step

  2. Check wiring harness and connector (transmission wire - transmission control computer)
    1. Disconnect the connector A18 of the transmission control computer ASSY.
    2. Measure the resistance between the terminals.
      RESISTANCE

      Inspection terminals Inspection conditions Standard value
      A18-13 (SLU+) - A18-1 (SLU-) 20°C 5.0 to 5.6 Ω
      A18-13 (SLU+) - chassis ground Always 10 k Ωor more
      A18-1 (SLU-) - chassis ground Always 10 k Ωor 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 WORK SUPPORT  )

  4. Check of lock-up control solenoid (SLU) unit
    1. Check the lock-up control solenoid (SLU) unit. (Refer to NEUTRAL START SWITCH ASSY )

      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 )