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Home >> Acura >> 1992 >> NSX V6-3.0L DOHC >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Main Relay (Computer/Fuel System) >> Testing and Inspection >> Main Relay
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Main Relay

Relay Testing

NOTE: If the car starts and continues to run, the main relay is OK.

1. Remove the main relay.








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.
- If there is continuity, go on to step 3.
- If there is no continuity, replace the relay and retest.
3. Attach the battery positive terminal to the No. 6 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.
- If there is continuity, go on to step 4.
- If there is no continuity, replace the relay and retest.
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 of the main relay. Then check that there is continuity between the No. 5 terminal and No. 7 terminal of the main relay.
- If there is continuity, the relay is OK;
If the fuel pump still does not work, go to Main Relay Harness Test.
- If there is no continuity, replace the relay and retest.


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