Accord L4-2156cc 2.2L SOHC (1991)
Main Relay (Computer/Fuel System): Testing and Inspection
Main Relay Test
Main Relay Test Points
Main Relay Test:
1.
Remove the main relay.
2.
Attach the positive battery terminal to the #6 terminal and the negative battery terminal to the #8 terminal of the main relay. Then check for
continuity between the #5 terminal and the #7 terminal of the main relay.
a. If there is continuity, go to step 3.
b. If there is no continuity, replace the relay and retest.
3.
Attach the positive battery terminal to the #5 terminal and the negative battery terminal to the #2 terminal of the main relay. Then check for
continuity between the #1 terminal and the #3 terminal of the main relay.
a. If there is continuity, go to step 4.
b. If there is no continuity, replace the relay and retest.
4.
Attach the positive battery terminal to the #3 terminal and the negative battery terminal to the #8 terminal of the main relay. Then check for
continuity between the #5 terminal and the #7 terminal of the main relay.
a. If there is continuity, the relay is OK.
b. If the fuel pump still does not work, go to harness test.
c. If there is no continuity, replace the relay and retest.
