Immobilizer Indicator Lamp Check for Vehicle Equipped with Immobilizer Indicator Lamp (Immobilizer Indicator Lamp Remains on after Engine Starts)
Wiring Diagram
1. Main fuse
2. Main relay
3. ECM
4. Immobilizer indicator lamp (if equipped)
Upper terminal layout is for engine without VVT.
Lower terminal layout is for engine with VVT.
Step Action YES NO
1) With ignition switch OFF, disconnect couplers from ECM.
Does immobilizer indicator lamp turn ON at ignition switch ON?
“RED/GRN” wire shorted to ground circuit.
Substitute a known-good ECM and recheck.