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Toyota Corolla Repair Manual: Ecm/pcm processor

Dtc p0606 ecm/pcm processor

Monitor description

The ecm continuously monitors its internal circuits. This selfcheck 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 airfuel ratio was lean or rich, etc. At the time of the malfunction.

Replace ecm

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 usefu ...

Starter relay circuit high
Dtc p0617 starter relay circuit high ...

Other materials:

Inspection procedure
1 Check unlock warning switch assy Disconnect the key unlock warning switch connector.  check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table. Standard: 2 Check wire harness (tvip ecu unlock warning ...

Bluetooth Audio (Multimedia system)
Listening to Bluetooth Audio The Bluetooth audio system enables the user to enjoy music played on a portable player from the vehicle speakers via wireless communication. When a Bluetooth device cannot be connected, check the connection status on the Bluetooth* Audio screen. If the device ...

Preparations to use wireless communication
The following can be performed using Bluetooth wireless communication: ■ A portable audio player can be operated and listened to via multimedia system ■ Hands-free phone calls can be made via a cellular phone In order to use wireless communication, register and connect a Bluetooth ...

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