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DTC P0713 [FN4A-EL]
DTC P0713 [FN4A-EL]
B3E050219090W12
DTC P0713
Transaxle fluid temperature (TFT) sensor circuit malfunction (open circuit)
DETECTION CONDITION
• If the PCM detects the following condition for 150 s or more, the PCM determines that the TFT sensor circuit has a malfunction.
- TFT sensor voltage 4.67 V or more and vehicle speed 20 km/h {12 mph} or more
Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The AT warning light illuminates.
• The DTC is stored in the PCM memory.
POSSIBLE CAUSE
• TFT sensor malfunction
• Open circuit in wiring harness between TFT sensor terminal A and ATX terminal E
• Open circuit in wiring harness between TFT sensor terminal B and ATX terminal H
• Open circuit in wiring harness between ATX terminal E and PCM terminal 1AU
• Open circuit in wiring harness between ATX terminal H and PCM terminal 1AN
• Damaged connectors between TFT sensor and PCM
• PCM malfunction
Diagnostic procedure
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Bulletins and or/on-line repair information availability.
• Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY CURRENT INPUT SIGNAL STATUS
• Turn the ignition switch to the ON position (engine off).
• Measure the voltage at PCM terminal 1AU.
• Is the voltage below 4.67 V?
Yes
Go to the intermittent concern troubleshooting procedure.
(See INTERMITTENT CONCERN TROUBLESHOOTING [Z6].)
No
Go to the next step.
4
INSPECT ATX CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Inspect ATX connector connection.
• Disconnect the ATX connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals, then go to Step 11.
5
INSPECT TFT SENSOR CIRCUIT
• Turn the ignition switch to the ON position (engine off).
• Measure the voltage at PCM terminal 1AU when connect between ATX terminals E and H (wiring harness-side) using jumper wire.
• Verify that voltage changes to 0.06 V or less.
• Does the voltage change?
Yes
Go to the next step.
No
Go to Step 8.
6
INSPECT TFT SENSOR CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Remove the under cover of control valve body.
• Disconnect the TFT sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals or replace the TFT sensor, then go to Step 11.
(See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION.)
7
INSPECT TFT SENSOR CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between TFT sensor terminals (wiring harness-side) and ATX terminals (transaxle case side).
- ATX terminal E and TFT sensor terminal A
- ATX terminal H and TFT sensor terminal B
• Is there continuity?
Yes
Replace the TFT sensor, then go to Step 11.
(See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness, then go to Step 11.
8
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals, then go to Step 11.
9
INSPECT WIRING HARNESS FOR OPEN CIRCUIT
• Disconnect the ATX connector.
• Connect the PCM connector.
• Turn the ignition switch to the ON position (engine off).
• Inspect the voltage at ATX terminal E (vehicle wiring harness-side).
• Is the voltage 5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 11.
10
INSPECT ATX CONNECTOR CIRCUIT FOR OPEN CIRCUIT
• Turn the ignition switch to the LOCK position.
• Inspect for continuity between ATX terminal H (wiring harness-side) and body ground.
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to the next step.
11
VERIFY TROUBLESHOOTING OF DTC P0713 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the memory using the WDS or equivalent.
• Drive the vehicle under the following condition for 150 s or more.
- Vehicle speed (VSS PID) 20 km/h {12 mph} or more.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [Z6].)
No
Go to the next step.
12
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See AFTER REPAIR PROCEDURE [FN4A-EL].)
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.
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