Charade L4-1295cc 1.3L (1989)
Main Relay (Computer/Fuel System): Testing and Inspection
Fig. 5 Main Relay Pin Locations.
Fig. 6 Main Relay Pin Location.
1.
Measure resistance between terminals 1 and 2, Figs. 5 and 6. Resistance should be 40-100 ohms.
2.
Ensure continuity does not exists between terminals 3 and 4, 1 and 3, 1 and 4, 2 and 3 or between terminals 2 and 4.
3.
Supply battery power to terminals 1 and 2.
4.
Ensure continuity exists between terminals 3 and 4.
5.
If any test fails, replace main relay.
6.
Perform main relay circuit test.
Fig. 54 ECU System Diagnosis, Main Relay Check (Part 1 Of 3)