CHECK ECM BY COMMUNICATION LINE CHECK.

1) Connect the harness connector to ECM.

2) Disconnect the harness connector from IMM ECM.

3) Perform communication line check.

QUESTION
Does “Communication Line not Shorted” appear on the screen?
Yes	No
Replace the IMM ECM and then replace all ignition keys (including the transponder). Execute the registration procedure next. Refer to REGISTRATION MANUAL FOR IMMOBILIZER (Pub. No. S0820GZ).	Replace the ECM. Perform the registration procedure next. Refer to REGISTRATION MANUAL FOR IMMOBILIZER (Pub. No. S0820GZ).