10C
DTC 81 (P1623): ECM/Immobilizer Control Module Code Not Matched (ECM Side)
System Description
ECM checks it ECM/Immobilizer Control Module code transmitted from Immobilizer Control Module and that registered in ECM match when ignition switch is ON. If they do not, this DTC is set.
Troubleshooting
Perform procedure described in Procedure after ECM Replacement:M13A Model .