Swift L4-1298cc 1.3L DOHC 3 MFI 16V (1989)
Main Relay (Computer/Fuel System): Testing and Inspection
Fig. 73 Removing Main Relay
1.
Disconnect battery ground cable, then remove main relay from main fuse box, Fig. 73.
Fig. 74 Checking Main Relay Resistance
2.
Check resistance between each two terminals as shown in Fig. 74.
3.
Resistance between A and B terminals should be infinity. Resistance between C and D terminals should be 56--84 ohms.
4.
Check there is continuity between terminals A and B when battery is connected to terminals C and D.
5.
If any of above tests are not satisfactory, replace main relay.