P0713

P0710: Malfunction of Transmission Fluid Temperature Sensor
P0712: Malfunction of Transmission Fluid Temperature Sensor (Short)
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.
^ [P0710, P0712]: If transmission fluid temperature equals or exceeds specified value, TCM judges that transmission fluid temperature sensor has a failure.
^ [P0710, 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 [P0710, P0712]
^ TCM detects the fluid temperature 180°C (356°F) or more for five seconds.

MONITOR EXECUTION [P0710, P0712]
^ Continuous

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) [P0710, 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) [P0710, P0712]

Logic Flow Charts (Monitor Sequence) <P0712>:

DTC SET CONDITIONS [P0710, P0712]

Check Conditions
^ Vehicle speed: 10 km/h (6.2 mph) or more.
^ Voltage of battery: 9 volts or more.
^ Voltage of battery: 16 volts or less.
^ Secondary pulley speed sensor circuit no signal: normal.
^ Primary or secondary pulley speed sensor performance: normal.

Judgement Criteria
^ Value of temperature of transmission fluid: 180°C (356°F) or more. (Drive at 5 km/h (3.1 mph) or more for 5 seconds)

OBD-II DRIVE CYCLE PATTERN [P0710, P0712]
All the conditions below continue for 6 seconds.
^ Transmission range switch: D
^ Vehicle speed: 10 km/h (6.2 mph) or more
^ Throttle position: 1/8 or more
^ Engine speed: 450 r/min or more
^ Transmission fluid temperature: 20°C (68°F) or more.
^ Transmission fluid temperature: 99°C (210°F) or more.

DESCRIPTIONS OF MONITOR METHODS [P0710, P0713]
^ TCM detects the fluid temperature -40°C (-40°F) or less for five seconds.

MONITOR EXECUTION [P0710, P0713]
^ Continuous

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) [P0710, 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) [P0710, P0713]

Logic Flow Charts (Monitor Sequence) <P0713>:

DTC SET CONDITIONS [P0710, P0713]

Check Conditions
^ Vehicle speed: 10 km/h (6.2 mph) or more.
^ Voltage of battery: 9 volts or more.
^ Voltage of battery: 16 volts or less.
^ Secondary pulley speed sensor circuit no signal: normal.
^ Primary or secondary pulley speed sensor performance: normal.

Judgement Criteria
^ Value of temperature of transmission fluid: -40°C (-40°F) or more. (Drive at 5 km/h (3.1 mph) or more for 5 seconds)

OBD-II DRIVE CYCLE PATTERN [P0710, P0713]
All the conditions below continue for 6 seconds.
^ Transmission range switch: D
^ Vehicle speed: 10 km/h (6.2 mph) or more
^ Throttle position: 1/8 or more
^ Engine speed: 450 r/min or more
^ Transmission fluid temperature: 20°C (68°F) or more.
^ Transmission fluid temperature: 99°C (210°F) or more.

PROBABLE CAUSES
^ Malfunction of the valve body assembly (Faulty transmission fluid temperature sensor)
^ Damaged wiring harness and connectors
^ Malfunction of TCM

DIAGNOSTIC PROCEDURE

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

Q: Is the check result normal?
YES: Go to Step 6.
NO: Replace the valve body assembly.

STEP 6. Symptom recheck after erasing diagnosis code

Q: Is the check result normal?
YES: Intermittent malfunction
NO: Replace TCM.