Legend Sedan V6-2494cc 2.5L SOHC FI (1987)
Main Relay (Computer/Fuel System): Testing and Inspection
Main Relay
Main Relay Test
1. Remove the main relay, near the under-dash fuse box.
2. Attach the battery positive terminal to the No. 4 terminal and the battery negative terminal to the No. 8 terminal of the main relay. Then check for
continuity between the No. 5 terminal and No. 7 terminal of the main relay.
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If there is continuity, go on to step 3.
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If there is no continuity, replace the relay and re-test.
3. Attach the battery positive terminal to the No. 5 terminal and the battery negative terminal to the No. 2 terminal of the main relay. Then check that
there is continuity between the No. 1 terminal and No. 3 terminal of the main relay.
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If there is continuity, go on to step 4.
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If there is no continuity, replace the relay and re-test.
4. Attach the battery positive terminal to the No. 3 terminal and battery negative terminal to the No. 8 terminal of the main relay. Then check that
there is continuity between the No. 5 terminal and No. 7 terminal of the main relay.
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If there is continuity, the relay is OK;
If the fuel pump still does not work, go to Main Relay Harness Test.
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If there is no continuity, replace the relay and re-test.