Diesel Data: Automotive Repair

Main Relay (Computer/Fuel System): Testing and Inspection

INSPECT CIRCUIT OPENING RELAY







a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the instrument panel junction block

INSPECT MAIN RELAY







a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the main relay.