Toyota Corolla (E120): Ecm/pcm processor

Dtc p0606 ecm/pcm processor

Monitor description

The ecm continuously monitors its internal circuits. This self–check insures that the ecm is functioning properly.

If a malfunction is detected, the ecm will set the appropriate dtc and illuminate the mil.

The two cpus, main and sub cpu inside the ecm, perform continuous mutual monitoring. If there is difference between outputs from the two cpus that deviates from standard level ranges, the ecm concludes that there is a fault and sets a dtc.

Monitor strategy

Monitor strategy

Typical enabling conditions

Typical enabling conditions

Typical malfunction thresholds

Typical malfunction thresholds

Inspection procedure

Inspection procedure

Hint

: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.

Replace ecm

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    Circuit description
    Refer to dtc p0130 Dtc no. Dtc detection condition Trouble area P0133 After engine has been warmed up, if response time that heated oxygen sensor’s output voltage reaches from rich to lean. Or from lean to rich, is 0.6 Second or more during idling. ...

    Outside vehicle
    General maintenance Performing these maintenance checks on the vehicle in the owner’s responsibility. The owner may perform the maintenance or take the vehicle to a service center. Check the parts of the vehicle described below on a daily basis. In most cases, special tool are not requir ...

    Cleaning and protecting the vehicle interior
    Perform cleaning in a manner appropriate to each component and its material. Protecting the vehicle interior Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces with a cloth dampened with lukewarm water. If dirt cannot be removed, wipe it off with a soft cloth dampened with neut ...