Operation CHARM: Car repair manuals for everyone.

Component Inspection





Component Inspection

1. Check Main relay
(1) IG "OFF".
(2) Disconnect the main relay.
(3) Measure the resistance between terminal 30 and 87 of main relay.
(4) Measure the resistance between terminal 85 and 86 of main relay.
Specification : 70 - 120 ohms









(5) Is the measured resistance within specification ?






NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others