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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 P0712 Transmission Fluid Temperature Sensor "A" Circuit Low; DTC P0713 Transmission Fluid Temperature Sensor "A" Circuit High >> Circuit description

Circuit description

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

The oil temperature sensor installed in the valve body detects the oil temperature in the transmission hydraulic control circuit and inputs signals corresponding to the oil temperature to the transmission control computer ASSY.

NOTE:
  • The data monitor (AT oil temperature) indicates -40°C when P0712 is output.
  • The data monitor (AT oil temperature) indicates 170°C or more when P0713 is output.
Fig 1: Resistance Versus Oil Temperature Graph
G10214185Courtesy of SUBARU OF AMERICA, INC.
DTC DETECTION CONDITION

DTC No. SAE/TCCS DTC detecting condition
  1. Diagnosis condition
  2. Abnormal condition
  3. Abnormal period
  4. Other
 Inspection parts
P0712
  1. Learning control is not prohibited.
  2. Oil temperature sensor input voltage is less than 0.14V.
  3. 10 seconds durations are detected 6 times consecutively.
  4. 1 trips
  • Transmission wire (oil temperature sensor)
  • Wiring harness or connector
  • Transmission control computer
P0713
  1. The condition that the neutral start switch ASSY is normal and the shift is in D or R position is established for 1 minute or more. Learning control is not prohibited.
  2. Oil temperature sensor input voltage is 4.88V or more.
  3. 1 second detections are detected 12 times consecutively.
  4. 1 trips
  • Transmission wire (oil temperature sensor)
  • Wiring harness or connector
  • Transmission control computer
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