Toyota Tundra (2015 year). Manual — part 1668
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000T6X0F9X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610; ECM / PCM Internal Engine Off Timer
Performance; 2015 MY Tundra [08/2014 - ]
DTC
P2610
ECM / PCM Internal Engine Off Timer Performance
DTC SUMMARY
DTC
MONITORING ITEM
MALFUNCTION DETECTION
CONDITION
TROUBLE
AREA
DETECTION
TIMING
DETECTION
LOGIC
P2610
Soak timer (built into
ECM)
ECM internal malfunction
ECM
Engine running
2 trip
DESCRIPTION
only be performed after the engine is stopped. The soak timer is built into the ECM.
MONITOR DESCRIPTION
MIL and stores the DTC.
1.
2.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610; ECM...
time the ignition switch is turned to ON.
MONITOR STRATEGY
Required Sensors/Components
ECM
Duration
2 times: Case 1
-: Case 2 and 3
MIL Operation
2 driving cycles
TYPICAL ENABLING CONDITIONS
All
Monitor runs whenever following DTCs are not stored
None
Case 1
Battery voltage
8 V or higher
Ignition switch
OFF
CPU clock elapsed time
1.96608 seconds or more
Case 2
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
Internal engine off timer (elapsed time from engine stop)
40 minutes or more
Battery voltage
8 V or higher
Ignition switch
ON
Starter
OFF
TYPICAL MALFUNCTION THRESHOLDS
Case 1
(a) CPU clock elapsed time
1.96608 seconds or more, and less than 8.323072 seconds
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610; ECM...
(b) Internal Engine off timer
9.375 seconds or more
(c) CPU clock elapsed time
8.323072 to 10.420224 seconds
(d) Internal Engine off timer
18.75 seconds or more
(e) CPU clock elapsed time
More than 10.420224 seconds
(f) Internal Engine off timer
Less than 9.375 seconds
Case 2
ECM had the started record
Yes
Case 3
ECM had the started record
No
CONFIRMATION DRIVING PATTERN
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON and turn the Techstream on.
2.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
3.
Turn the ignition switch off and wait for at least 30 seconds.
4.
Turn the ignition switch to ON and turn the Techstream on.
5.
Start the engine.
6.
Idle the engine for 10 minutes or more.
7.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8.
Read the pending DTC.
HINT:
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
9.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10.
Input the DTC: P2610.
11.
Check the DTC judgment result.
TESTER
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
12.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610; ECM...
NEXT
HINT:
If the judgment result shows ABNORMAL, the system has a malfunction.
If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and
check for permanent DTCs
.
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
13.
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 Techstream. 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.
PROCEDURE
1.
REPLACE ECM
(a) Replace the ECM
.
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 DTCs
.
(e) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving
Pattern.
(f) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
(g) If no pending DTC is displayed, the repair has been successfully completed.
NEXT
END
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610; ECM...
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