Diesel Data: Automotive Repair

IG Power Source Circuit

IG POWER SOURCE CIRCUIT

CIRCUIT DESCRIPTION

This is the main power source supplied to the A/C amplifier when the ignition switch is turned to the ON position. The power source supplied is used for operating the A/C amplifier and servomotor, etc.

Wiring Diagram:






Step 1 - 2:




Step 3 - 4:




INSPECTION PROCEDURE

HINT: Start the engine before inspection. Check the IG1 relay or battery if the engine does not start.

If the engine still does not start, see the SFI system.