Vehicle is not Ready to Start When Driver Has Key

Vehicle is not Ready to Start when Driver Has Key

DESCRIPTION
If the entry ignition function does not operate, insert the key into the key slot and check if the hybrid control system starts. If the hybrid control system starts (the transponder key ECU outputs a start permission to the hybrid control system and the hybrid control system starts), it can be assumed that only the entry ignition system is malfunctioning.

The certification ECU uses the indoor electrical key oscillator to send a request signal to the key when: 1) the driver's door is opened and closed, or 2) the power switch is changed from ON (ACC) to OFF or OFF to ON. Then, the key transmits its ID code to the door control receiver. The ID code, which is then sent to the certification ECU, is verified by the certification ECU and the verification result is sent to the transponder key ECU.

The transponder key ECU and the certification ECU communicate encryption codes to each other using the multiplex communication line. When the return code from the certification ECU matches the ID code in memory, the transponder key ECU sends a hybrid control system start permission signal to the hybrid control ECU. Pressing the power switch while depressing the brake pedal then starts the hybrid control system. With the vehicle stopped, pressing the power switch again stops the hybrid control system.

Wiring Diagram:

Step 1:

Step 2-4:

Step 5-6:

Step 7:

INSPECTION PROCEDURE