- Engine difficult to start
- Lack of power
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001HTN8 |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [03/2019 - ] |
| Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P261401; Camshaft Position Signal Output "A" General Electrical Failure; 2020 - 2025 MY Corolla Corolla Hatchback [03/2019 - ] | ||
|
DTC |
P261401 |
Camshaft Position Signal Output "A" General Electrical Failure |
DESCRIPTION
Refer to DTC P001001.
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![2020 - 2025 MY Corolla Corolla Hatchback [03/2019 - ]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001001; Camshaft Position "A" Actuator Bank 1 General Electrical Failure+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P261401 |
Camshaft Position Signal Output "A" General Electrical Failure |
Malfunction in rotation sensor of cam timing control motor with EDU assembly is detected for 3 seconds (1 trip detection logic). |
|
Comes on |
DTC stored |
|
Symptoms and Fail-safe Operation During Camshaft Control Motor Malfunction
|
Vehicle Condition |
Fail-Safe |
|---|---|
|
|
The cam timing control motor with EDU assembly is operated to the most retarded position. |
MONITOR DESCRIPTION
This DTC is output when a malfunction in the cam timing control motor rotation sensor is detected. The cam timing control motor with EDU assembly is equipped with a self diagnostic function, which is used to output diagnosis signals (VTM) to the ECM. If the ECM receives a duty signal of 40%, this DTC is output immediately (1 trip detection logic).
MONITOR STRATEGY
|
Related DTC |
P2614: Camshaft position signal range check |
|
Required sensor/Components (Main) |
Cam timing control motor with EDU assembly |
|
Required sensor/Components (Related) |
- |
|
Frequency of Operation |
Continuous |
|
Duration |
3 seconds |
|
MIL Operation |
Immediate |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
None |
|
All of the following conditions are met |
- |
|
Battery voltage |
11 V or higher |
|
Ignition switch |
ON |
|
Engine speed |
100 rpm or higher |
TYPICAL MALFUNCTION THRESHOLDS
|
"Camshaft position signal error" from motor drive VVT system control module |
Received |
CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- 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 at least 30 seconds.
- Start the engine [A].
- Idle the engine for 10 seconds or more [B].
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes [C].
-
Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P261401.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
- DTC judgment completed
- System normal
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system has a malfunction.
- If the judgment result is INCOMPLETE, perform steps [A] through [C] again.
-
[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
CAUTION / NOTICE / HINT
HINT:
Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
|
1. |
REPLACE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY |
(a) Replace the cam timing control motor with EDU assembly.
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HINT:
Perform "Inspection After Repair" after replacing the cam timing control motor with EDU assembly.
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|
|
2. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the ignition switch off and wait for at least 30 seconds.
|
|
3. |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes.
(c) Read the DTCs.
Powertrain > Engine > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTC P261401 is output |
B |
| A |
|
END |
| B |
|
REPLACE ECM
|
|
|