3000GT SL V6-2972cc 3.0L DOHC MFI (1997)
Ignition Control Module: Testing and Inspection
Inspection
Ignition Power Transistor
NOTE: An analog-type circuit tester should be used.
No. 1-No. 4 coil side
1. Connect the negative (-) terminal of the 1.5 V power supply to terminal (4) of the ignition power transistor; then check whether there is continuity
between terminal (13) and terminal (4) when terminal (3) and the positive (+) terminal are connected and disconnected.
NOTE: Connect the (-) probe of the circuit tester to terminal (13).
2. Replace the ignition power transistor if there is a malfunction.
Ignition Power Transistor
No. 2-No. 5 coil side
1. Connect the negative (-) terminal of the 1.5 V power supply to terminal (4) of the ignition power transistor; then check whether there is continuity
between terminal (12) and terminal (4) when terminal (2) and the positive (+) terminal are connected and disconnected.
NOTE: Connect the (-) probe of the circuit tester to terminal (12).
2. Replace the ignition power transistor if there is a malfunction.
Ignition Power Transistor
