DESCRIPTION The ATF temperature sensor converts the fluid temperature into a resistance value for use by the ECM.
The ECM applies a voltage to the temperature sensor through terminal THO1 of the ECM.
The sensor resistance changes with the ATF temperature. As the temperature becomes higher, the sensor resistance decreases.
One
terminal of the sensor is grounded so that the sensor resistance
decreases and the voltage goes down as the temperature becomes higher. The ECM calculates the fluid temperature based on the voltage signal. |
DTC Code | DTC Detection Condition |
Trouble Area | | P0711 |
Either condition is met (2-trip detection logic):
- (a) Certain monitor enabling conditions are met and the ATF temperature is below 20°C (68°F).
- (b) Certain monitor enabling conditions are met and the ATF temperature is 110°C (230°F) or higher.
| Transmission wire (No. 1 ATF temperature sensor) | MONITOR DESCRIPTION
This
DTC indicates that there is a problem with output from the Automatic
Transmission Fluid (ATF) temperature sensor and that the sensor itself
is defective. The ATF temperature sensor converts the ATF temperature to
an electrical resistance value. Based on the resistance, the ECM
determines the ATF temperature and detects an open or short in the ATF
temperature sensor circuit or a fault in the ATF temperature sensor. After
running the vehicle for a certain period, the ATF temperature should
increase. If the ATF temperature is below 20°C (68°F) after running the
vehicle for a certain period, the ECM interprets this as a fault, turns
on the MIL and stores the DTC. When the ATF
temperature is 105°C (221°F) or more and the engine coolant temperature
takes 10 seconds or more to reach 60°C (140°F) after a cold start, the
ECM also determines this as a fault, turns on the MIL and stores the
DTC. MONITOR STRATEGY |
Related DTCs | P0711: ATF temperature sensor/Rationality fault diagnostics | |
Required sensors/Components | ATF temperature sensor | |
Frequency of operation | Continuous | |
Duration | Condition (A), (B), (C) and (D): 3 seconds
Condition (E): Continuous | | MIL operation |
2 driving cycles | | Sequence of operation |
None | TYPICAL ENABLING CONDITIONS All |
The monitor will run whenever the following DTCs are not present |
P0712, P0713, P2740, P2742, P2743 (ATF temperature sensor "A" circuit)
P0115, P0116, P0117, P0118, P011B (ECT (Engine Coolant Temperature) sensor circuit)
P0110, P0111, P0112, P0113 (IAT (Intake air temperature) sensor circuit)
P2610 (Soak timer circuit) | Condition (A) |
Duration time from engine start | 12 seconds or more | |
ECT | -15°C (5°F) or higher | |
Permission flag for ATF temperature rationality check |
ON | | Time after engine start except for continuing shift position "N" or "P"*2 |
10 minutes or more | | Accumulated driving time*1 |
75 seconds or more | | Driving distance after engine start*3 |
4.7 km (2.9 miles) or more | | ECT (12 seconds after engine start) |
15°C (59°F) or higher | | IAT*4 |
15°C (59°F) or higher | | Soak time |
5 hours or more | Condition (B) |
Duration time from engine start | 12 seconds or more | |
ECT | -15°C (5°F) or higher | |
Permission flag for ATF temperature rationality check |
ON | | Time after engine start except for continuing shift position "N" or "P"*2 |
21 minutes and 40 seconds or more | | Accumulated driving time*1 |
140 seconds or more | | Driving distance after engine start*3 |
9.0 km (5.6 miles) or more | | ECT (12 seconds after engine start) |
-10°C (14°F) or higher | | IAT*4 |
-10°C (14°F) or higher | Condition (C) |
Duration time from engine start | 12 seconds or more | |
ECT | -15°C (5°F) or higher | |
Permission flag for ATF temperature rationality check |
ON | | Time after engine start except for continuing shift position "N" or "P"*2 |
30 minutes or more | | Accumulated driving time*1 |
400 seconds or more | | Driving distance after engine start*3 |
16.0 km (9.9 miles) or more | | ECT (12 seconds after engine start) |
-15°C (5°F) or higher | | IAT*4 |
-15°C (5°F) or higher | Condition (D) |
Duration time from engine start | 12 seconds or more | |
ECT | -15°C (5°F) or higher | |
Permission flag for ATF temperature rationality check |
ON | | Time after engine start except for continuing shift position "N" or "P"*2 |
55 minutes or more | | Accumulated driving time*1 |
750 seconds or more | | Driving distance after engine start*3 |
27.0 km (16.8 miles) or more | Condition (E) |
Duration time for ECT to reach 60°C (140°F) | 10 seconds or more | |
ATF temperature (12 seconds after engine start) | 110°C (230°F) or higher | |
ECT (12 seconds after engine start) | Below 35°C (95°F) |
HINT:
- *1: Following conditions are met
|
Engine speed - Turbine speed |
50 rpm or more |
|
Output speed |
400 rpm or more |
|
Throttle valve opening angle |
5.5% or more |
|
Shift position |
Not "N" or "P" |
|
Engine |
Starting |
|
However, accumulated driving time is cleared |
- |
|
When following condition met |
- |
|
Duration time from shift position "N" or "P" |
5 minutes or more |
- *2: Time after engine start is cleared when following condition met
|
Duration time from shift position "N" or "P" |
5 minutes or more |
- *3: Driving distance is cleared when following condition met
|
Duration time from shift position "N" or "P" |
5 minutes or more |
- *4: IAT is measured when either of following conditions met
|
12 sec. after engine start |
- |
|
Duration time from shift position "N" or "P" |
5 minutes or more |
TYPICAL MALFUNCTION THRESHOLDS When either condition below is met: Condition (A), (B), (C), (D) or (E) Condition (A), (B), (C) and (D) |
ATF temperature | Below 20°C (68°F) | Condition (E) |
ATF temperature | 110°C (230°F) or higher | COMPONENT OPERATING RANGE Condition (A), (B), (C), (D) and (E) |
ATF temperature | 20°C (68°F) or higher, and below 110°C (230°F) | CAUTION / NOTICE / HINT
NOTICE:
- Perform the universal trip to clear permanent DTCs (See page
 ).
- If DTCs P0711 and P2610 are output simultaneously, confirm that the ATF
temperature is as specified in "Normal Condition" using the Techstream
first. When the ATF temperature is as specified in "Normal Condition",
perform troubleshooting for DTC P2610 (See page ).
1. DATA LIST HINT: Using
the Techstream to read the Data List allows the values or states of
switches, sensors, actuators and other items to be read without removing
any parts. This non-intrusive inspection can be very useful because
intermittent conditions or signals may be discovered before parts or
wiring is disturbed. Reading the Data List information early in
troubleshooting is one way to save diagnostic time. NOTICE: In
the table below, the values listed under "Normal Condition" are
reference values. Do not depend solely on these reference values when
deciding whether a part is faulty or not. (a) Warm up the engine. (b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3. (d) Turn the ignition switch to ON.
(e) Turn the Techstream on. (f) Enter the following menus: Powertrain / Engine and ECT / Data List.
(g) According to the display on the Techstream, read the Data List. Engine and ECT |
Tester Display | Measurement Item/Range |
Normal Condition | Diagnostic Note | |
A/T Oil Temperature 1 | No. 1 ATF temperature sensor value/
Min.: -40°C (-40°F) Max.: 150°C (302°F) |
- After stall test: Approximately 80°C (176°F)
- Equal to ambient temperature when engine cold
| If the value is -40°C (-40°F) or 150°C (302°F), the No. 1 ATF temperature sensor circuit is open or shorted. |
HINT: When DTC P0712 is output and the Techstream output is 150°C (302°F) or more, there is a short circuit.
When DTC P0713 is output and the Techstream output is -40°C (-40°F), there is an open circuit.
Check the temperature displayed on the tester in order to check if a malfunction exists. |
Temperature Displayed | Malfunction | |
-40°C (-40°F) | Open circuit | |
150°C (302°F) or more |
Short circuit | If
a circuit related to the ATF temperature sensor becomes open, P0713 is
immediately stored (in 0.5 seconds). When P0713 is stored, P0711 cannot
be stored. It is not necessary to inspect the circuit when P0711 is stored. PROCEDURE
| 1. |
CHECK DTC OUTPUT (IN ADDITION TO DTC P0711) |
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON.
(c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read the DTCs using the Techstream. Result |
Result | Proceed to | |
Only P0711 is output |
A | | P0711 and other DTCs are output |
B | HINT: If any other codes besides P0711 are output, perform troubleshooting for those DTCs first.
| B |
 | GO TO DTC CHART |
|
A |
 | |
| 2. |
CHECK TRANSMISSION FLUID LEVEL | (a) Check the transmission fluid level (See page
). OK: Automatic transmission fluid level is correct.
| OK |
| REPAIR OR REPLACE TRANSMISSION WIRE |
| NG |
| ADD FLUID | | 
