P0710

DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

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





CONSULT-II Reference Value

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

Possible Cause
^ Harness or connectors
(The sensor circuit is open or shorted.)
^ A/T fluid temperature sensors 1, 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-II
1. Turn ignition switch "ON". (Do not start engine.)





2. Select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.
3. Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to maintain continuously.)
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.0/8
Selector lever: "D" position
4. If DTC is detected, go to "Diagnostic Procedure".

WITH GST
Follow the procedure "With CONSULT-II".

Diagnostic Procedure
1. CHECK FLUID TEMPERATURES SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.








2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out the value of "ATF TEMP SE 1" or "ATF TEMP SE 2".

OK or NG
OK >> GO TO 4.
NG >> GO TO 2.

2. CHECK TCM
Perform TCM input/output signal inspection.

OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM
Check the following items:
^ Power supply and ground circuit for TCM.
^ The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG
OK >> Replace the transmission assembly.
NG >> Repair or replace damaged parts.

4. CHECK DTC
Perform DTC Confirmation Procedure.

OK or NG
OK >> INSPECTION END
NG >> GO TO 2.