P1710

P1710 TRANSMISSION FLUID TEMPERATURE SENSOR





Description
The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.




CONSULT-III Reference Value in Data Monitor Mode









On Board Diagnosis Logic
- This is an OBD-II self-diagnostic item.
- Diagnostic trouble code "P1710 (A/T), P0710 (ENGINE)" with CONSULT-III or 10th judgment flicker without
CONSULT-III is detected when TCM receives an excessively low or high voltage from the sensor.




Possible Cause
- Harness or connectors
(Sensor circuit is open or shorted.)
- A/T fluid temperature sensors 1 and/or 2




DTC Confirmation Procedure

CAUTION:
Always drive vehicle at a safe speed.

NOTE:
If "DTC Confirmation Procedure" has been previously performed, always turn ignition switch OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-III
1. Start the engine.
2. Select "DATA MONITOR" in "TRANSMISSION".
3. Drive vehicle and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to maintain continuously.)

VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: "D" position

4. If DTC is detected, go to P1710.

WITH GST
Follow the procedure "WITH CONSULT-III".




Wiring Diagram - AT - FTS









Diagnosis Procedure
1.CHECK A/T FLUID TEMPERATURE SENSOR 1 SIGNAL
With CONSULT-III
1. Start engine.
2. Select "DATA MONITOR" in "TRANSMISSION".
3. Read out the value of "ATF TEMP SE 1". .
OK or NG
OK - GO TO 2.
NG - GO TO 3.
2.CHECK A/T FLUID TEMPERATURE SENSOR 2 SIGNAL
With CONSULT-III
1. Start engine.
2. Select "DATA MONITOR" in "TRANSMISSION".
3. Read out the value of "ATF TEMP SE 2". .
OK or NG
OK - GO TO 8.
NG - GO TO 5.
3.CHECK A/T FLUID TEMPERATURE SENSOR 1
Check A/T fluid temperature sensor 1. P1710.
OK or NG
OK - GO TO 4.
NG - Replace the control valve with TCM. Service and Repair.
4.CHECK SUB-HARNESS
1. Disconnect transmission range switch connector and TCM connector.





2. Check continuity between transmission range switch connector
(A) terminals and TCM connector (B) terminals.





3. If OK, check harness for short to ground and short to power.
OK or NG
OK - GO TO 7.
NG - Replace open circuit or short to ground and short to power in harness or connectors.
5.CHECK A/T FLUID TEMPERATURE SENSOR 2
Check A/T fluid temperature sensor 2. P1710.
OK or NG
OK - GO TO 6.
NG - Replace the A/T fluid temperature sensor 2. Service and Repair.
6.CHECK TERMINAL CORD ASSEMBLY
1. Disconnect A/T fluid temperature sensor 2 connector and TCM connector.





2. Check continuity between A/T fluid temperature sensor 2 connector terminals and TCM connector terminals.





3. If OK, check harness for short to ground and short to power.
OK or NG
OK - GO TO 7.
NG - Replace open circuit or short to ground and short to power in harness or connectors.
7.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
1. Check TCM power supply and ground circuit. Main Power Supply and Ground Circuit.
2. Reinstall any part removed.
OK or NG
OK - Replace the control valve with TCM. Service and Repair.
NG - Repair or replace damaged parts.
8.CHECK DTC
Perform P1710.
OK or NG
OK - INSPECTION END
NG - GO TO 1.




Component Inspection

A/T FLUID TEMPERATURE SENSOR 1
1. Remove control valve with TCM. Service and Repair.





2. Check resistance between transmission range switch connector
(A) terminals.





3. If NG, replace the control valve with TCM. Refer to Service and Repair, "Control Valve with TCM and A/T Fluid Temperature Sensor 2".

A/T FLUID TEMPERATURE SENSOR 2

1. Remove A/T fluid temperature sensor 2. Service and Repair.





2. Check resistance between terminals.





3. If NG, replace the A/T fluid temperature sensor 2. Refer to Service and Repair, "Control Valve with TCM and A/T Fluid Temperature Sensor 2".