Component Tests and General Diagnostics

CIRCUIT DIAGRAM





USING SCAN TOOL














HARNESS INSPECTION PROCEDURES





1. Primary signal of ignition coil
- Run the engine at an idle revolution speed.
- Connect the probe to oscilloscope pick-up point 1 as shown in the circuit diagram, and check the primary signal of the ignition coil.





2. Control signal of ignition power transistor
- Connect the probe to oscilloscope pick-up point 2 as shown in the circuit diagram, and check the control signal of the ignition power transistor.

USING OSCILLOSCOPE

TROUBLESHOOTING HINTS
If a short or open circuit occurs in the ignition system major problems will be noticed.