Civic VP Sedan L4-1590cc 1.6L SOHC MFI (1999)
PGM-FI Main Relay: Testing and Inspection
Relay Testing
NOTE:
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If the engine starts and continues to run, the PGM-FI main relay is OK.
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Use the terminal numbers below; ignore the terminal numbers molded into the relay.
1. Remove the PGM-FI main relay.
2. Attach the battery positive terminal to the No.2 terminal and the battery negative terminal to the No.1 terminal of the PGM-FI main relay. Then
check for continuity between the No.5 terminal and No.4 terminal of the PGM-FI 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 PGM-FI main relay and retest.
3. Attach the battery positive terminal to the No.5 terminal and the battery negative terminal to the No.3 terminal of the PGM-FI main relay. Then
check that there is continuity between the No.7 terminal and No.6 terminal of the PGM-FI 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 PGM-FI main relay and retest.
4. Attach the battery positive terminal to the No.6 terminal and the battery negative terminal to the No.1 terminal of the PGM-FI main relay. Then
check that there is continuity between the No.5 terminal and No.4 terminal of the PGM-FI main relay.
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If there is continuity, the PGM-FI main relay is OK. If the fuel pump still does not work, go to Harness Testing.
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If there is no continuity, replace the PGM-FI main relay and retest.