Pgm-Fi Main Relay Circuit Troubleshooting - Honda 2004 Odyssey Service Manual

PGM-FI Main Relay Circuit Troubleshooting

'99-00, '02-04 Models
1. Turn the ignition switch OFF.
2. Disconnect the PGM-FI main relay 7P connector.
3. Check for continuity between body ground and
PGM-FI main relay 7P connector terminal No. 3.
PGM-FI MAIN RELAY 7P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Go to step 4.
NO Repair open in the wire between the PGM-FI
main relay and G101.
4. Measure voltage between body ground and PGM-FI
main relay 7P connector terminal No. 7.
PGM-FI MAIN RELAY 7P CONNECTOR
Wire side of female terminals
Is there battery voltage?
YES Go to step 6.
NO Go to step 5.
PG1 (BLK)
BAT (WHT/GRN)
5. Check for a blown ACG S (15A) fuse in the under-
hood fuse/relay box.
Is the f use blown?
YES Repair short in the wire between the PGM-FI
main relay and the ACG S (15A) fuse.
NO Repair open in the wire between the PGM-FI
main relay and the ACG S (15A) fuse.
6. Turn the ignition switch ON (II), and measure
voltage between body ground and PGM-FI main
relay 7P connector terminal No. 5.
PGM-FI MAIN RELAY 7P CONNECTOR
IG1 (RED/WHT)
Wire side of female terminals
Is there battery voltage?
YES Go to step 8.
NO Go to step 7.
7. Check for a blown No. 1 FUEL PUMP (15A) fuse in
the driver's under-dash fuse/relay box.
Is the f use blown?
YES Repair short in the wire between the PGM-FI
main relay and the No. 1 FUEL PUMP (15A) fuse.
NO Repair open in the wire between the PGM-FI
main relay and the No. 1 FUEL PUMP (15A) fuse.
(cont'd)
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