Operation CHARM: Car repair manuals for everyone.
Home >> Mitsubishi >> 1994 >> Eclipse L4-1755cc 1.8L SOHC >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Testing and Inspection >> Component Tests and General Diagnostics
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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.
pro multis · About Operation CHARM