P0713

DTC P0713: Transmission Fluid Temperature Sensor System (Open Circuit)

TRANSMISSION FLUID TEMPERATURE SENSOR SYSTEM CIRCUIT

Refer to P0712.

DESCRIPTIONS OF MONITOR METHODS

- With the vehicle speed 10 km/h (6.2 mph) or more, when the status of transmission fluid temperature -40°C (-104°F) or less is detected

MONITOR EXECUTION

- Vehicle speed: more than 10 km/h (6.2 mph)

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)

- P0846: Malfunction of the 2-6 brake pressure switch system

- P0876: Malfunction of the High clutch pressure switch system

- P0988: Malfunction of the Low-reverse brake pressure switch system
Sensor (The sensor below is determined to be normal)

- Not applicable

LOGIC FLOW CHARTS (Monitor Sequence)





DTC SET CONDITIONS

Check Conditions

- Vehicle speed: 10 km/h (6.2 mph) or more.
Judgment Criteria

- Value of temperature of transmission fluid: -40°C (-104°F) or less. (At once)

OBD-II DRIVE CYCLE PATTERN

Drive with the vehicle speed 10 km/h (6.2 mph) or more.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CODE TO BE SET ARE:)

- Malfunction of the transmission fluid temperature sensor system (open circuit) circuit

- Damaged harness or connector

- Malfunction of the transmission fluid temperature sensor system (open circuit)

- Malfunction of the TCM

DIAGNOSIS

STEP 1. Check the TCM terminal voltage.

[C-37 connector (vehicle side, connected)]

Turn ON the ignition switch, and check the voltage between terminal No. 39 and No. 50.

- Transmission fluid 20°C (68°F): Approx. 2.52 V

- Transmission fluid 80°C (176°F): Approx. 0.69 V

Q. Is the check result normal?

YES Go to Step 6.
NO Go to Step 2.
STEP 2. Check the transmission fluid temperature sensor as a single unit.

Refer to Testing and Inspection.

Q. Is the check result normal?

YES Go to Step 3.
NO Replace the valve body assembly.
STEP 3. Check the wiring harness between the transmission fluid temperature sensor and TCM.

Check for continuity between B-111 A/T control solenoid valve assembly connector terminals and C-37 TCM terminals.

NOTE:
Prior to the wiring harness inspection, check the intermediate connectors A-12 and repair that if necessary.

- Between B-111 terminal No. 2 and C-37 terminal No. 39: Continuity exists.

- Between B-111 terminal No. 3 and C-37 terminal No. 50: Continuity exists.

When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.

Q. Is the check result normal?

YES Go to Step 4.
NO Repair or replace the failure section.
STEP 4. Check the TCM power supply and ground.

Q. Is the check result normal?

YES Go to Step 5.
NO Repair or replace the failure section.
STEP 5. Check the TCM connector pin terminal and the connection status.

Q. Is there a failure point?

YES Repair or replace the failure section.
NO Replace the TCM.
STEP 6. Erase the DTC code, and drive the vehicle for a while.

Check that the normal code is displayed.

Q. Is the check result normal?

YES The procedure is complete.
NO Return to START.