DTC P0713[FN4A-EL]

id0502a1801400

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 and ATX terminal E

•  Open circuit in wiring harness between TFT sensor and ATX terminal H

•  Open circuit in wiring harness between ATX terminal E and PCM terminal 1AH (ZY)/1AU (Z6)/1U (LF)

•  Open circuit in wiring harness between ATX terminal H and PCM terminal 1AG (ZY)/1AN (Z6)/1AA (LF)

•  Damaged connectors between TFT sensor and PCM

•  PCM malfunction

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 and ATX terminal E • Open circuit in wiring harness between TFT sensor and ATX terminal H • Open circuit in wiring harness between ATX terminal E and PCM terminal 1AH (ZY)/1AU (Z6)/1U (LF) • Open circuit in wiring harness between ATX terminal H and PCM terminal 1AG (ZY)/1AN (Z6)/1AA (LF) • 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.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
2		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 1AH (ZY)/1AU (Z6)/1U (LF). • Is the voltage 4.67 V or less?	Yes	Go to the intermittent concern troubleshooting procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING[ZJ, ZY, Z6].) (See INTERMITTENT CONCERN TROUBLESHOOTING[LF, L3].)
3		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.
4		No	Repair or replace the connector and/or terminals, then go to Step 10.
5	INSPECT TFT SENSOR CIRCUIT • Turn the ignition switch to the ON position (engine off). • Measure the voltage at PCM terminal 1AH (ZY)/1AU (Z6)/1U (LF) 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.
5		No	Go to Step 7.
6	INSPECT TFT SENSOR CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between ATX terminals (transaxle case side) E and H. • Is there continuity?	Yes	Replace the TFT sensor, then go to Step 10. (See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION[FN4A-EL].)
6		No	Repair or replace the wiring harness, then go to Step 10.
7	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.
7		No	Repair or replace the connector and/or terminals, then go to Step 10.
8	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.
8		No	Repair or replace the wiring harness, then go to Step 10.
9	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.
9		No	Repair or replace the wiring harness, then go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P0713 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the M-MDS. • 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[MZ-CD 1.6 (Y6)].) (See PCM REMOVAL/INSTALLATION[LF, L3].)
10		No	Go to the next step.
11	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. (See DTC TABLE[FN4A-EL].)
11		No	DTC troubleshooting completed.