2002 Echo Crank, No Start, No Spark, Immobilizer

[Andrinik]

Checked pin2 EFI relay: 0 volt.
Pin5=12 volt. No depending on key position.

Batt pin1 on ECU=12 volt.
Pin7 on ECU grounded with key inserted.
I've checked the wire from pin5 EFI to pin2ECU. It is ok.

So, no any volts on pin1 of transponder, because it after EFI relay.
Immo light flashing. Always.

[CTScott]

Originally Posted by Andrinik

Checked pin2 EFI relay: 0 volt.
Pin5=12 volt. No depending on key position.

Batt pin1 on ECU=12 volt.
Pin7 on ECU grounded with key inserted.
I've checked the wire from pin5 EFI to pin2ECU. It is ok.

So, no any volts on pin1 of transponder, because it after EFI relay.
Immo light flashing. Always.

You could try bypassing the EFI relay, by jumping 5 to 3. With MREL not having power with the key inserted, there is more likely an ECM or power to ECM issue.

I would also check on the ignition switch connector:

White/Light blue - 12 V constant power
White/Red - 12 V constant power

Black/Yellow - 12 V with Ignition in ON position
Black/Red - 12 V with Ignition in ON position