Sfi System - P2610

Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

2Uz-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 No.
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

The soak timer is built into the ECM. To ensure that the Evaporative Emission (EVAP) monitor values will be accurate, the soak timer counts 5 hours (+-15 minutes) from when the ignition switch is turned OFF. This allows the fuel to cool down, which stabilizes the Fuel Tank Pressure (FTP). When approximately 5 hours have passed, 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 the soak timer and CPU clock 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 (built into ECM)
Required Sensors/Components
ECM
Frequency of Operation
Once per driving cycle
Duration
10 minutes
MIL Operation
2 driving cycles
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


Monitor runs whenever following DTC not present
None
Ignition switch
ON
Engine
Running
Battery voltage
8 V or more
Starter
OFF

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 with CAN VIM.

  1. Turn the ignition switch ON and turn the intelligent tester ON.

  1. Clear DTCs (Click here).

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

  1. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC / INFO / PENDING CODES.

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


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END