P2610

2GR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2610: ECM / PCM Internal Engine Off Timer Performance
P2610 - ECM / PCM Internal Engine Off Timer Performance

DTC SUMMARY





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 which can only be performed after the engine is stopped. The soak timer is built into the ECM.





MONITOR DESCRIPTION

1. While the engine is running, the ECM monitors the synchronization of the soak timer and CPU clock. If these two are not synchronized, the ECM interprets this as a malfunction, illuminates the MIL and stores the DTC.

2. 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 on (IG).

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

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TYPICAL MALFUNCTION THRESHOLDS

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INSPECTION PROCEDURE

HINT
- DTC P2610 is set 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 Freeze Frame Data.

PROCEDURE

1. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- Continue to next step.

2. CHECK WHETHER DTC OUTPUT RECURS

(a) Clear the DTCs DTC Check / Clear.

(b) Put the engine in inspection mode Inspection Mode Procedure.

(c) Connect the Techstream to the DLC3.

(d) Start the engine and wait for 10 minutes or more.

(e) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

(f) If no pending DTC is displayed, the repair has been successfully completed.

NEXT -- END