Ignition Control Module: Testing and Inspection

Ignition Control System Schematic:

A faulty ignition system power transistor does not set a trouble code in the on-board diagnostic system. Refer to the schematic diagram and test the system with the diagnostic chart.

Wire color code identification:

L: Blue
B: Black
Y: Yellow
G: Green
R: Red
W: White
Br: Brown
Lg: Light green
Gr: Gray

Ignition Control System Diagnostic Chart (a):

Ignition Control System Diagnostic Chart (b):

Ignition Control System Diagnostic Chart (c):

IGNITION CONTROL SYSTEM DIAGNOSTIC CHARTS