Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM (EXCEPT HEV) - DIAGNOSTIC CODES (P0606-P1378)SFI SYSTEM (FOR GASOLINE MODEL)DTC P062F-44: INTERNAL CONTROL MODULE EEPROM DATA MEMORY FAILURE [12/2024 - ]CONFIRMATION DRIVING PATTERN
2025 Toyota 4Runner SR5, RWD
Confirmation Driving Pattern
2025 Toyota 4Runner SR5, RWDSECTION Confirmation Driving Pattern
HINT:
- After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Refer to DIAGNOSIS SYSTEM [12/2024 - ]
- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Refer to DTC CHECK / CLEAR [12/2024 - ]
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off.
- Disconnect the GTS.
- Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
- Connect the cable to the negative (-) battery terminal.
- Start the engine and wait 30 seconds or more [A].
- Enter the following menus: Powertrain / Engine / Trouble Codes [B].
- Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P062F-44.
- Check the DTC judgment result.
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system is malfunctioning.
- [A] to [B]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.