Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

1Gr-Fe Engine Control System

Title:

Sfi System

  1. Dtc summary

  2. Description

  3. Monitor description

  4. Monitor strategy

  5. Typical enabling conditions

  6. Typical malfunction thresholds

  7. Inspection procedure

  8. Replace ecm

  9. Check whether dtc output recurs

DTC P2610 ECM / PCM Internal Engine Off Timer Performance


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DTC SUMMARY


DTC
Monitoring Items
Malfunction Detection Conditions
Trouble Areas
Detection Timings
Detection Logic
P2610
Soak timer (built into ECM)
ECM internal malfunction
ECM
Engine running
2 trip

DESCRIPTION

To ensure the accuracy of the EVAP (Evaporative Emission) monitor values, the soak timer, which is built into the ECM, measures 5 hours (+- 15 minutes) from when the ignition switch is turned off, before the monitor is run. This allows the fuel to cool down, which stabilizes the Fuel Tank Pressure (FTP). When 5 hours have elapsed, the ECM turns on.

DTC P2610 is set if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is required. 4Runner


MONITOR DESCRIPTION

5 hours after the ignition switch is turned off, the soak timer activates the ECM to begin the EVAP system monitor. 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 sets the DTC (2 trip detection logic).

MONITOR STRATEGY


Related DTCs
P2610: Soak timer (bulit into ECM)
Required sensors / components
ECM
Frequency of operation
Once per driving cycles
Duration
10 minutes
MIL operation
2 driving cycles
Sequence operation
None

TYPICAL ENABLING CONDITIONS


The monitor will run whenever these DTCs are not present
None
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
Engine
Running

TYPICAL MALFUNCTION THRESHOLDS


Soak timer measurement when ECM CPU clock counts 10 minutes
Less than 7 minutes or more than 13 minutes

INSPECTION PROCEDURE

HINT:
  1. DTC P2610 is set if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is required.
  2. Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
1.REPLACE ECM

  1. Replace the ECM (Click here).


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2.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on.

  1. Clear DTCs (Click here).

  1. Start the engine and wait for 10 minutes or more.

  1. Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.

  1. If no pending DTC is displayed, the repair has been successfully completed.

    OK:
    No DTC output.


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CHECK FOR INTERMITTENT PROBLEMS
OK
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END