What happens when ignition key is not coded?
A properly coded ignition key must be used in the ignition switch for the engine to start. If an improperly coded key (or other device) is used, the engine’s starting circuit will be disabled. When you turn the ignition switch to ON (II), the immobilizer system indicator should come on for a few seconds, then go out.
What to do if your Honda Key is not recognized?
Turn the ignition switch to LOCK (0), remove the key, reinsert it, and turn the switch to ON (II) again. If the system repeatedly does not recognize the coding of your key, contact your Honda dealer. This indicator will also blink several times when you turn the ignition switch from ON (II) to ACCESSORY (I) or LOCK (0).
How to insert third transponder key in ignition lock cylinder?
Insert third transponder key into ignition lock cylinder for registration DO NOT TURN ON. After security light goes off remove third key from ignition. The security light should extinguish and then commence to blink regularly. 5. Wait 30 seconds for the programming cycle and programming mode to close.
How are virginize keys stored in the ECU?
The virginize keys are values that are “10” in the original dump but must be changed to “00” to tell the computer to go into auto-programming mode. The Key counter is a number count, in inverse HEX, of how many keys are currently stored in the ECU.
How to reset the engine control module ( ECU )?
The 2 most common ways to reset your car computer is by either unplugging the battery or by resetting the fuse related to the engine control module Will disconnecting battery reset ECU? Disconnect the battery and Switch the ignition key to the on position for about 15 minutes should reset the ECU
Where is the transponder ECU on a Toyota?
The amplifier then decrypts it and sends it to the ECU. Inside the ECU is a 93C56 EEPROM chip (IC900) that stores the key values. If the key code matches the stored values, the engine will start. On newer Toyota and Lexus vehicles, the transponder ECU is a separate unit and it’s housed under the dashboard.
The virginize keys are values that are “10” in the original dump but must be changed to “00” to tell the computer to go into auto-programming mode. The Key counter is a number count, in inverse HEX, of how many keys are currently stored in the ECU.
Insert third transponder key into ignition lock cylinder for registration DO NOT TURN ON. After security light goes off remove third key from ignition. The security light should extinguish and then commence to blink regularly. 5. Wait 30 seconds for the programming cycle and programming mode to close.