hey if i unplug the pcm from a 2003 mazda tribute v6 should the check engine indicator still illuminate when ignition is turn on


Asked by Oct 07, 2019 at 01:42 PM about the 2003 Mazda Tribute ES V6 4WD

Question type: Maintenance & Repair

2 Answers


The default position is probably always on until the pcm tells the cluster to turn it off using the data network


okay thanks much that information is very helpful because i was thinking that the car have electrical wires touching each other to keep it on

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