- DTC judgment completed
- System normal
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001GYSU |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [01/2019 - 11/2022] |
| Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P2767; Input / Turbine Speed Sensor "B" Circuit No Signal; 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022] | ||
|
DTC |
P2767 |
Input / Turbine Speed Sensor "B" Circuit No Signal |
DESCRIPTION
The ECM detects the input shaft speed based on the signal from the revolution sensor (transmission revolution sensor (NIN)) and performs gear ratio control.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
|---|---|---|---|---|---|
|
P2767 |
Input / Turbine Speed Sensor "B" Circuit No Signal |
While the vehicle is driven with the shift lever in D and the SPD signal is 300 rpm or more, the speed indicated by the transmission revolution sensor (NIN) is less than 300 rpm for 2 seconds (1-trip detection logic). |
|
Comes on |
DTC stored |
MONITOR DESCRIPTION
The ECM receives a signal from the transmission revolution sensor (NIN) installed to the continuously variable transaxle assembly and determines the input shaft speed in order to control the gear ratio. If the ECM detects no signal from the transmission revolution sensor (NIN) even though the vehicle is moving, it will determine that the transmission revolution sensor (NIN) is malfunctioning, illuminate the MIL and store this DTC.
MONITOR STRATEGY
|
Related DTCs |
P2767: Primary pulley speed sensor (NIN) / Verify pulse input |
|
Required sensors/Components |
Transmission revolution sensor (NIN) |
|
Frequency of operation |
Continuous |
|
Duration |
2 seconds |
|
MIL operation |
Immediately |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
|
The monitor will run whenever the following DTCs are not present |
None |
|
Battery voltage |
8 V or more |
|
Time after battery voltage is 8 V or more |
0.5 seconds or more |
|
Write inhibit |
Permit |
|
Time after write status forbiddance to permit |
0.5 seconds or more |
|
Ignition switch |
ON |
|
Time after ignition switch OFF to ON |
0.5 seconds or more |
|
Starter |
OFF |
|
Time after starter ON to OFF |
0.5 seconds or more |
|
Output shaft revolution |
300 rpm or more |
TYPICAL MALFUNCTION THRESHOLDS
|
Primary pulley speed sensor (output signal speed) |
Less than 300 rpm |
COMPONENT OPERATING RANGE
|
Primary pulley speed sensor (output signal speed) |
300 rpm or more |
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.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine.
-
Perform the D Position Shift Test inspection in Road Test. [*1]
Click here
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Stop the vehicle.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P2767.
-
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.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
-
Strictly observe posted speed, limits, traffic laws and road conditions.
- Do not drive the vehicle with the cable of the Techstream contacting the pedals, shift lever or steering wheel.
- Driving the vehicle with the cable of the Techstream contacting these areas could impede vehicle control, resulting in a serious accident.
-
Do not operate the Techstream while driving the vehicle.
- Operating the Techstream while driving the vehicle will prevent you from paying sufficient attention to vehicle surroundings, and could result in a serious accident.
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. |
READ VALUE USING TECHSTREAM (SPD (NIN), ENGINE SPEED AND LOCK UP) |
(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 / Data List.
(e) According to the display on the Techstream, read the Data List.
Powertrain > Engine and ECT > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Engine Speed |
Engine speed |
Min.: 0 rpm Max.: 16383 rpm |
680 to 780 rpm: Engine idling |
When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed. |
|
SPD (NIN) |
Primary pulley speed (NIN) |
Min.: 0 rpm Max.: 65535 rpm |
|
Data is displayed in increments of 50 rpm. |
|
Lock Up |
Lock-up |
OFF or ON |
|
- |
Powertrain > Engine and ECT > Data List
|
Tester Display |
|---|
|
Engine Speed |
|
SPD (NIN) |
|
Lock Up |
|
Result |
Proceed to |
|---|---|
|
Data List values are not normal |
A |
|
Data List values are normal |
B |
| B |
|
|
|
2. |
INSPECT TRANSMISSION REVOLUTION SENSOR (NIN) |
|
(a) Disconnect the C74 transmission revolution sensor (NIN) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (NIN-) - 2 (NIN+) |
20°C (68°F) |
560 to 680 Ω |
(c) Connect the C74 transmission revolution sensor (NIN) connector.
| NG |
|
REPLACE TRANSMISSION REVOLUTION SENSOR (NIN)
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NIN) - ECM) |
(a) Disconnect the C77 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C77-123 (NIN+) - C77-124 (NIN-) |
20°C (68°F) |
560 to 680 Ω |
|
C77-123 (NIN+) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
C77-124 (NIN-) - Body ground and other terminals |
Always |
10 kΩ or higher |
(c) Connect the C77 ECM connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NIN) - ECM) |
|
|
4. |
REPLACE ECM |
(a) Replace the ECM.
Click here
| NEXT |
|
|
5. |
REPLACE ECM |
(a) Replace the ECM.
Click here
| NEXT |
|
|
|