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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission (Diagnostics) 4AT) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0713 Transmission Fluid Temperature Sensor Circuit High Input

DTC P0713 Transmission Fluid Temperature Sensor Circuit High Input

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

DTC DETECTING CONDITION: 

Input signal circuit to ATF temperature sensor is shorted.

TROUBLE SYMPTOM: 

Excessive shift shock

WIRING DIAGRAM: 

Fig 1: ATF Temperature Sensor - Wiring Diagram
G05019774
RESISTANCE CHART

Step Check Yes No
1 CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from TCM.
  3. Measure the resistance between TCM connector terminals.

    Connector & terminal 

    (B54) No. 21 - No. 9: 

 Is the resistance more than 500 Ω? Go to step 2.  Go to step 4. 
2 CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR. 
Measure the resistance of the harness between TCM connector and chassis ground.
Connector & terminal 
(B54) No. 21 - Chassis ground: 		 Is the resistance more than 1 MΩ? Go to step 3.  Go to step 4. 
3 CHECK HARNESS. 
Measure the resistance between TCM connector terminals while shaking the harness.
Connector & terminal 
(B54) No. 21 - No. 9: 		 Does the resistance change? Go to step 4.  Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . >
4 CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from transmission.
  3. Measure the resistance of the harness between TCM connector and chassis ground.

    Connector & terminal 

    (B54) No. 21 - Chassis ground: 

 Is the resistance more than 1 MΩ? Go to step 5.  Repair the short circuit of harness between TCM and transmission harness.
5 CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR. 
Measure the resistance of the harness between TCM connector and chassis ground.
Connector & terminal 
(B54) No. 9 - Chassis ground: 		 Is the resistance more than 1 MΩ? Go to step 6.  Repair the short circuit of harness between TCM and transmission harness.
6 CHECK ATF TEMPERATURE SENSOR. 
Measure the resistance between transmission connector terminals.
Connector & terminal 
(T4) No. 11 - No. 15: 		 Is the resistance more than 500 Ω? Even if the SPORT indicator light is blinking, the circuit is in normal condition at this time. A temporary short circuit of connector or harness may be the cause. Repair the harness or connector. Go to step 7. 
7 CHECK TRANSMISSION HARNESS. 
  1. Lift up the vehicle and place it on rigid racks.
  2. Drain the automatic transmission fluid.
    CAUTION: Do not drain ATF until it cools down.
  3. Remove the oil pan.
  4. Disconnect the harness connector from control valve.
  5. Measure the resistance between ATF temperature sensor connector terminals.
  6. Measure the resistance between transmission connector and transmission ground.

    Connector & terminal 

    (T4) No. 11 - Transmission ground: 

 Is the resistance more than 1 MΩ? Go to step 8.  Replace the transmission harness.
8 CHECK TRANSMISSION HARNESS. 
Measure the resistance between transmission connector and transmission ground.
Connector & terminal 
(T4) No. 15 - Transmission ground: 		 Is the resistance more than 1 MΩ? Go to step 9.  Replace the transmission harness.
9 CHECK ATF TEMPERATURE SENSOR. 
Measure the resistance between control valve connector terminals.
Terminal 
No. 1 - No. 3: 		 Is the resistance more than 500 Ω? Even if the SPORT indicator light is blinking, the circuit is in normal condition at this time. A temporary short circuit of connector or harness may be the cause. Repair the harness or connector. Replace the control valve body. < Ref. to CONTROL VALVE BODY . >
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