- DTC judgment completed
- System normal
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIBJ |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 08/2016] |
| Title: 2GR-FE (ENGINE CONTROL): SFI SYSTEM: P2610; ECM / PCM Internal Engine Off Timer Performance; 2016 MY Sienna [12/2015 - 08/2016] | ||
|
DTC |
P2610 |
ECM / PCM Internal Engine Off Timer Performance |
DTC SUMMARY
|
DTC No. |
Monitoring Item |
Malfunction Detection Condition |
Trouble Area |
Detection Timing |
Detection Logic |
|---|---|---|---|---|---|
|
P2610 |
Soak timer (built into ECM) |
ECM internal malfunction |
ECM |
Ignition switch off |
2 trip |
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.
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 ON.
MONITOR STRATEGY
|
Related DTC |
P2610: ECM internal engine off timer performance |
|
Required Sensors/Components (Main) |
ECM |
|
Required Sensors/Components (Related) |
- |
|
Frequency of Operation |
Once per driving cycle |
|
Duration |
2 times: Case 1 -: Case 2 and 3 |
|
MIL Operation |
2 driving cycles |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
All:
|
Monitor runs whenever the following DTCs are not stored |
None |
Case 1:
|
All of the following conditions are met |
- |
|
Battery voltage |
8 V or higher |
|
Ignition switch |
Off |
|
CPU clock elapsed time |
1.96608 seconds or more |
Case 2:
|
All of the following conditions are met |
- |
|
Internal engine OFF timer (elapsed time from engine stop) |
10 minutes or more, and less than 30 minutes |
|
Battery voltage |
8 V or higher |
|
Ignition switch |
ON |
|
Starter |
Off |
Case 3:
|
All of the following conditions are met |
- |
|
Internal engine OFF timer (elapsed time from engine stop) |
10 minutes or more, and less than 40 minutes |
|
Battery voltage |
8 V or higher |
|
Ignition switch |
ON |
|
Starter |
Off |
TYPICAL MALFUNCTION THRESHOLDS
Case 1:
|
One of the following conditions is met |
Condition A, B or C |
|
A. Both of the following conditions are met |
Condition (a) and (b) |
|
(a) CPU clock elapsed time |
1.96608 seconds or more, and less than 8.323072 seconds |
|
(b) Internal engine off timer |
9.375 seconds or more |
|
B. Both of the following conditions are met |
Condition (c) and (d) |
|
(c) CPU clock elapsed time |
8.323072 to 10.420224 seconds |
|
(d) Internal engine off timer |
18.75 seconds or more |
|
C. Both of the following conditions are met |
Condition (e) and (f) |
|
(e) CPU clock elapsed time |
More than 10.420224 seconds |
|
(f) Internal engine off timer |
Less than 9.375 seconds |
Case 2:
|
ECM started by internal engine off timer last trip |
Yes |
Case 3:
|
ECM started by internal engine off timer last trip |
No |
CONFIRMATION DRIVING PATTERN
- 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) (See page
![2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine.
- Idle the engine for 10 minutes or more.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
-
Read 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 / Utility / All Readiness.
- Input the DTC: P2610.
-
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 ABNORMAL, the system has a malfunction.
-
If the result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (See page
).
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.
CAUTION / NOTICE / HINT
HINT:
- DTC P2610 is stored if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is required.
- 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 ECM |
(a) Replace the ECM (See page
).
|
|
2. |
CHECK WHETHER DTC OUTPUT RECURS |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs (See page
).
(e) Start the engine and wait for 10 minutes or more.
(f) Enter the following menus: Powertrain / Engine / Trouble Codes.
(g) Read pending DTCs.
HINT:
If no pending DTC is displayed, the repair has been successfully completed.
| NEXT |
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END |
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