P0713
DTC P0712: Malfunction of Transmission Fluid Temperature Sensor (Short)
DTC P0713: Malfunction of Transmission Fluid Temperature Sensor (Open)
DIAGNOSTIC FUNCTION
TCM conducts fault detection by monitoring the terminal voltage of the transmission fluid temperature sensor.
- [P0712]: If transmission fluid temperature equals or exceeds specified value, TCM judges that transmission fluid temperature sensor has a failure.
- [P0713]: If transmission fluid temperature is below specified value even after test driving for more than the specified period, the TCM judges that the transmission fluid temperature sensor has a failure.
DESCRIPTIONS OF MONITOR METHODS [P0712]
- TCM detects the fluid temperature 180°C (356°F) or more for 5 seconds.
MONITOR EXECUTION [P0712]
- Continuous
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) [P0712]
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- P0741: Abnormality in lockup function
- P0746: Abnormality in hydraulic control system function
- P0841: Abnormality in line pressure sensor function
Sensor (The sensor below is determined to be normal)
- Not applicable
LOGIC FLOW CHARTS (Monitor Sequence) [P0712]
DTC SET CONDITIONS [P0712]
Check Conditions
- Voltage of battery: 9 volts or more.
- Voltage of battery: 16 volts or less.
Judgment Criteria
- Value of temperature of transmission fluid: 180°C (356°F) or more.
(5 seconds)
OBD-II DRIVE CYCLE PATTERN [P0712]
Ignition switch : ON (start the engine and keep it for 10 seconds or more)
DESCRIPTIONS OF MONITOR METHODS [P0713]
- TCM detects the fluid temperature -40°C (-40°F) or less for five seconds.
MONITOR EXECUTION [P0713]
- Vehicle speed 10 km/h or more has been detected during 1 drive cycle
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) [P0713]
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- P0741: Abnormality in lockup function
- P0746: Abnormality in hydraulic control system function
- P0841: Abnormality in line pressure sensor function
Sensor (The sensor below is determined to be normal)
- Not applicable
LOGIC FLOW CHARTS (Monitor Sequence) [P0713]
DTC SET CONDITIONS [P0713]
Check Conditions
- After vehicle speed: 10 km/h (6.2 mph) or more.
- Voltage of battery: 9 volts or more.
- Voltage of battery: 16 volts or less.
Judgment Criteria
- Value of temperature of transmission fluid: -40°C (-40°F) or less. (5 seconds)
OBD-II DRIVE CYCLE PATTERN [P0713]
transmission range: D (Drive the vehicle for 10 seconds or more while the accelerator opening angle is 20%
or more)
PROBABLE CAUSES
- Malfunction of the valve body assembly (Faulty transmission fluid temperature sensor)
- Damaged wiring harness and connectors
- Malfunction of TCM
DIAGNOSIS
STEP 1. M.U.T.-III data list
Item 5: Transmission fluid temperature sensor signal (Refer to Data List Reference Table Data List Reference Table).
Q. Is the check result normal?
YES Intermittent malfunction
NO Go to Step 2.
STEP 2. Check the following connector:
- B-08 Transmission assembly connector
- C-40 TCM connector
- A-09 Intermediate connector
Check the terminals for a contact status problem and internal short circuit.
Q. Is the check result normal?
YES Go to Step 3.
NO Repair the defective connector.
STEP 3. Check for open circuit and short to ground in the wiring harness between the CVT assembly connector and the TCM connector
Between B-08 CVT assembly connector (terminal No.17) and C-40 TCM connector (terminal No.50)
Q. Is the check result normal?
YES Go to Step 4.
NO Repair the wiring harness.
STEP 4. Check for open circuit in the wiring harness between the CVT assembly connector and the TCM connector
Between B-08 CVT assembly connector (terminal No.19) and C-40 TCM connector (terminal No.48)
Q. Is the check result normal?
YES Go to Step 5.
NO Repair the wiring harness.
STEP 5. Transmission fluid temperature sensor check
Refer to Testing and Inspection.
Q. Is the check result normal?
YES Go to Step 6.
NO Replace the valve body assembly.
STEP 6. Symptom recheck after erasing diagnostic trouble code
Q. Is the check result normal?
YES Intermittent malfunction
NO Replace TCM.