CHECK WHETHER DTC OUTPUT RECURS
DTC P2610 ECM / PCM Internal Engine Off Timer Performance |
DESCRIPTION
The soak timer operates after the ignition switch is turned off. When a certain amount of time has elapsed after turning the ignition switch off, the soak timer activates the ECM to perform malfunction checks which can only be performed after the engine is stopped. The soak timer is built into the ECM.
| DTC No. | DTC Detection Condition | Trouble Area |
| P2610 | ECM internal malfunction (2 trip detection logic). | ECM |
MONITOR DESCRIPTION
- While the engine is running, the ECM monitors the synchronization of the soak timer and the CPU clock. If these two are not synchronized, the ECM interprets this as a malfunction, illuminates the MIL and stores the DTC.
- If the soak timer activates the ECM even though only a short amount of time has elapsed since the ignition switch was turned off, or if the soak timer does not activate the ECM even though a considerable amount of time has elapsed since the ignition switch was turned off, the ECM determines that the soak timer is malfunctioning, illuminates the MIL and stores a DTC the next time the ignition switch is turned to ON.
MONITOR STRATEGY
| Required Sensors/Components | ECM |
| Frequency of Operation | Once per driving cycle |
CONFIRMATION DRIVING PATTERN
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
- Turn the ignition switch off and wait for at least 30 seconds.
- Start the engine and warm it up.
- Turn the ignition switch off and wait for at least 15 seconds.
- Start the engine.
- Stop the engine and leave the vehicle for 60 minutes or more.
- Turn the ignition switch to ON and turn the GTS on.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the pending DTCs.
- HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P2610.
- Check the DTC judgment result.
GTS 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
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.
- DTC judgment completed
INSPECTION PROCEDURE
- HINT:
- DTC P2610 is stored if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is necessary.
- Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. 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.
| 1.REPLACE ECM |
Replace the ECM (LandCruiser RM000000VW203EX.html).
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| 2.CHECK WHETHER DTC OUTPUT RECURS |
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear DTCs (LandCruiser RM000000VNG00DX.html).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine and wait for 10 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
If no pending DTC is output, the repair has been successfully completed.
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