P0711

DTC P0711: Malfunction of Transmission Fluid Temperature Sensor

DIAGNOSTIC FUNCTION

TCM conducts fault detection by monitoring the terminal voltage of the transmission fluid temperature sensor.

DESCRIPTIONS OF MONITOR METHODS

- Field A : Transmission fluid temperature is less than -20°C (-4°F)
Field B : Transmission fluid temperature is -20°C (-4°F) or more and less than 0°C (32°F)
Field C : Transmission fluid temperature is 0°C (32°F) or more and less than 20°C (68°F)
When the transmission fluid temperature is kept at one of fields A, B and C above for 10 minutes.

MONITOR EXECUTION

- transmission range:D
- Vehicle speed : 10 km (6.2 mph) or more
- Throttle valve opening : 1/8 or more
- Engine speed : 450 r/min or more

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)

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

- Not applicable
Sensor (The sensor below is determined to be normal)

- Not applicable

LOGIC FLOW CHARTS (Monitor Sequence)





DTC SET CONDITIONS

Check Conditions

- Transmission range switch position: D.
- Vehicle speed: 10 km/h (6.2 mph) or more.
- Throttle position sensor voltage: 1.37 V or more.
- Engine speed: 450 r/min or more.
Judgment Criteria

- Transmission fluid temperature is less than -20°C (-4°F) for 600 seconds or more
- Transmission fluid temperature is -20°C (-4°F) or more and less than 0°C (32°F)for 600 seconds or more
- Transmission fluid temperature is 0°C (32°F) or more and less than 20°C (68°F)for 600 seconds or more

OBD-II DRIVE CYCLE PATTERN

transmission range: D (Drive the vehicle for 20 seconds or more while the accelerator opening angle is 20% or more)

PROBABLE CAUSES

- Malfunction of transmission fluid temperature sensor
- Malfunction of transmission fluid cooler piping and oil pump
- Malfunction of TCM

DIAGNOSTIC PROCEDURE

STEP 1. Transmission fluid cooler piping and oil pump check

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the failure sections.
STEP 2. Transmission fluid temperature sensor check

Refer to Testing and Inspection.

Q. Is the check result normal?

YES Go to Step 3.
NO Replace the valve body assembly.
STEP 3. Symptom recheck after erasing diagnosis code

Q. Is the check result normal?

YES Intermittent malfunction
NO Replace TCM.