- DTC judgment completed
- System normal
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001GYSI |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [01/2019 - 11/2022] |
| Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P0711; Transmission Fluid Temperature Sensor Circuit Range / Performance; 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022] | ||
|
DTC |
P0711 |
Transmission Fluid Temperature Sensor Circuit Range / Performance |
DESCRIPTION
The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is detected by the ECM.
The sensor resistance changes with the CVT fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies voltage to the temperature sensor through ECM terminal THO1 and calculates the CVT fluid temperature based on the voltage signal.
HINT:
The CVT fluid temperature is likely to increase under conditions such as towing, climbing hills and in traffic.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
|---|---|---|---|---|---|
|
P0711 |
Transmission Fluid Temperature Sensor Circuit Range / Performance |
Either of the following conditions is met (2-trip detection logic):
|
|
Comes on |
DTC stored |
DTC Detection Condition Patterns:
|
Vehicle Condition |
|||
|---|---|---|---|
|
Pattern 1 |
Pattern 2 |
||
|
Diagnostic Condition |
The intake air and engine coolant temperatures were more than -10°C (14°F) at engine start, and the vehicle has been driven for over 18 minutes and 7 km (4 miles). |
○ |
- |
|
The engine coolant temperature was less than 35°C (95°F) at engine start. |
- |
○ |
|
|
Malfunction Condition |
The CVT fluid temperature remains below 20°C (68°F). |
○ |
- |
|
The CVT fluid temperature remains 100°C (212°F) or more. |
- |
○ |
|
|
Duration |
3 seconds or more |
10 seconds or more |
|
|
Detection Logic |
2-trip detection logic |
2-trip detection logic |
|
HINT:
This DTC is output when either of the above detection patterns is met.
MONITOR DESCRIPTION
The CVT fluid temperature sensor converts the CVT fluid temperature to an electrical resistance value. Based on the resistance, the ECM determines the CVT fluid temperature and detects an open or short in the CVT fluid temperature circuit.
After driving the vehicle for a certain amount of time, the CVT fluid temperature should increase. If the CVT fluid temperature remains below 20°C (68°F), the ECM interprets this as a malfunction, stores a DTC and illuminates the MIL.
When the engine coolant temperature reaches 35°C (95°F) after a cold engine start, if the CVT fluid temperature is 100°C (212°F) or more, the ECM interprets this as a malfunction, illuminates the MIL, and stores this DTC.
MONITOR STRATEGY
|
Related DTCs |
P0711: CVT fluid temperature sensor / Rationality fault diagnostics |
|
Required sensors/Components |
Continuously variable transaxle assembly (CVT fluid temperature sensor) |
|
Frequency of operation |
Continuous |
|
Duration |
3 seconds |
|
MIL operation |
2 driving cycles |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
All
|
Electric throttle control system (ETCS) |
Not system down (MIL illuminated by following codes: P0121, P0122, P0123, P0222, P0223, P0604, P0606, P0607, P060D, P060E, P0657, P0658, P1607, P16B0, P2102, P2103, P2111, P2112, P2119, P2135) |
|
Knock sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0327, P0328) |
|
Engine coolant temperature (ECT) sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0117, P0118) |
|
Intake air temperature (IAT) sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0112, P0113) |
|
Transmission fluid temperature sensor "A" circuit (CVT fluid temperature sensor circuit) |
Not circuit malfunction (MIL illuminated by following codes: P0712, P0713) |
|
Turbine speed sensor "A" circuit |
Not circuit malfunction (MIL illuminated by following codes: P0717, P07BF, P07C0) |
|
Output speed sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0722, P077C, P077D) |
|
Soak timer circuit |
Not circuit malfunction (MIL illuminated by following codes: P2610) |
|
Low voltage flag |
OFF |
Condition (A)
|
Time after engine start except for continuing shift position "N" or "P"*2 |
10 minutes or more |
|
Accumulated driving time*1 |
2 minutes and 55 seconds or more |
|
Driving distance after engine start*3 |
5 km (3.1 miles) or more |
|
IAT (Intake air temperature)*4 |
15°C (59°F) or more |
|
ECT (Engine coolant temperature) (12 seconds after engine start) |
15°C (59°F) or more |
|
Soak time |
5 hours or more |
Condition (B)
|
Time after engine start except for continuing shift position "N" or "P"*2 |
18 minutes and 20 seconds or more |
|
Accumulated driving time*1 |
4 minutes and 10 seconds or more |
|
Driving distance after engine start*3 |
8 km (5 miles) or more |
|
IAT (Intake air temperature)*4 |
-10°C (14°F) or more |
|
ECT (Engine coolant temperature) (12 seconds after engine start) |
-10°C (14°F) or more |
Condition (C)
|
Time after engine start except for continuing shift position "N" or "P"*2 |
30 minutes or more |
|
Accumulated driving time*1 |
6 minutes and 40 seconds or more |
|
Driving distance after engine start*3 |
16 km (9.9 miles) or more |
|
IAT (Intake air temperature)*4 |
-15°C (5°F) or more |
|
ECT (Engine coolant temperature) (12 seconds after engine start) |
-15°C (5°F) or more |
Condition (D)
|
Time after engine start except for continuing shift position "N" or "P"*2 |
55 minutes or more |
|
Accumulated driving time*1 |
12 minutes and 30 seconds or more |
|
Driving distance after engine start*3 |
27 km (16.8 miles) or more |
Condition (E)
|
Any of the following conditions is met: (a) or (b) |
- |
|
(a) Duration time from ECT reach to 60°C (140°F) or more |
10 seconds or more |
|
(b) Soak time |
5 hours or more |
|
ECT (Engine coolant temperature) (12 seconds after engine start) |
Less than 35°C (95°F) |
*1: Following conditions are met
|
Engine speed - turbine speed |
-50 rpm or more |
|
Output speed |
400 rpm or more |
|
Throttle valve opening angle |
3% or more |
|
Shift position |
Not N or P |
|
Engine |
Starting |
|
However, accumulated driving time is cleared when following condition met: |
- |
|
Duration time from shifting to "N" or "P" |
5 minutes or more |
*2: Time after engine start is cleared when following condition met
|
Duration time from shifting to "N" or "P" |
5 minutes or more |
*3: Driving distance is cleared when following condition met
|
Duration time from shifting to "N" or "P" |
5 minutes or more |
*4: IAT is measured when either of following condition met
|
12 seconds after engine start |
- |
|
Duration time from shifting to "N" or "P" |
5 minutes or more |
TYPICAL MALFUNCTION THRESHOLDS
One of the following conditions is met: Condition (A), (B), (C), (D) or (E)
Condition (A), (B), (C) and (D)
|
Duration time from engine start |
12 seconds or more |
|
ECT |
-15°C (5°F) or more |
|
Transmission fluid temperature |
Less than 20°C (68°C) |
Condition (E)
|
Transmission fluid temperature |
100°C (212°F) or more |
COMPONENT OPERATING RANGE
|
Transmission Fluid Temperature |
20 to 100°C (68 to 212°F) |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
- After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
-
When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.
Click here
![2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Start the engine and turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Data List / A/T Oil Temperature 1.
-
Warm up the engine and check that the Data List value (A/T Oil Temperature 1) is between 20 and 100°C (68 and 212°F). [*1]
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P0711.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
N/A
- Unable to perform DTC judgment
- Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
CAUTION / NOTICE / HINT
NOTICE:
-
Perform the universal trip to clear permanent DTCs.
Click here
-
Perform initialization when parts related to the continuously variable transaxle system are replaced.
Click here
-
Check that no DTCs are stored after performing initialization.
Click here
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.
Powertrain > Engine and ECT > Trouble Codes
(e) Read the DTCs using the Techstream.
HINT:
If any DTCs other than P0711 are output, perform troubleshooting for those DTCs first.
|
Result |
Proceed to |
|---|---|
|
Only DTC P0711 is output |
A |
|
DTC P0711 and other DTCs are output |
B |
| B |
|
GO TO DTC CHART
|
|
|
2. |
CHECK CVT FLUID LEVEL |
(a) Check the CVT fluid level.
Click here
OK:
CVT fluid level is correct.
| NG |
|
|
|
3. |
REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY |
(a) Replace the continuously variable transaxle assembly.
Click here
| NEXT |
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