DTC P2610 2ZR-FXE

DTC P2610 ECM / PCM Internal Engine Off Timer Performance

Description

Monitor description

Monitor strategy

Confirmation driving pattern

Inspection procedure

Replace ecm

Check whether dtc output recurs

Description

The soak timer operates after the power switch is turned off. When a certain amount of time has elapsed after turning the power switch off, the soak timer activates the ECM to perform malfunction checks witch 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 while engine running (2 trip detection logic). ECM
Lexus DTC P2610 Description

Monitor description

If the soak timer activates the ECM even though only a short amount of time has elapsed since the power 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 power switch was turned off, the ECM determines that the soak timer is malfunctioning, illuminates the MIL and stores a DTC the next time the power switch is turned to on (IG).

Monitor strategy

Required Sensors/Components ECM
Frequency of Operation Once per driving cycle

Confirmation driving pattern

  1. Connect the intelligent tester to the DLC3.
  2. Turn the power switch on (IG) and turn the tester on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
  4. Turn the power switch off and wait for 30 seconds.
  5. Turn the power switch on (IG) and turn the tester on.
  6. Put the engine in inspection mode (maintenance mode) .
  7. Start the engine.
  8. Idle the engine for 10 minutes or more.
  9. Enter the following menus: Powertrain / Engine and ECT / DTC.
  10. Read the pending DTCs.

    HINT:

    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P2610.
  13. Check the DTC judgment result.
    Tester Display Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    UNKNOWN
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.

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 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

  1. Replace the ECM .

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2.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs .

  1. Put the engine in inspection mode (maintenance mode) .

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

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

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

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