Honda Civic 2002-2003 Service Manual page 349

Fuel Supply System
Fuel Pump Circuit Troubleshooting (cont'd)
9. Reinstall the PGM-FI main relay 2.
10. Turn the ignition switch ON (II).
11. Measure voltage between ECM/PCM connector
terminal El and body ground.
ECM CONNECTOR E (31P)
)MOFPR
(GRN/YEl)
1 2 3 4 5 6 7 8 9
141516 18 2021
222324
26 ",27,-,,-,-=2::19 3::::0"-,3,,,1
=
Wire side of female terminals
Is there battery voltage?
YES-Go to step 12.
NO-Replace the PGM-F) main relay 2 .•
12. Turn the ignition switch OFF.
13. Reconnect ECM connector E (31P).
14. Turn the ignition switch ON
(III,
and measure
voltage between ECM connector terminal El and
body ground within the first 2 seconds after the
ignition switch was turned ON
(II).
=
11-142
ECM CONNECTOR E (31P)
IMOFPR
(GRN/YEl)
Wire side of female terminals
Is there battery voltage?
YES- Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
NO-Goto step 15.
15. Turn the ignition switch OFF.
16. Remove the rear seat cushion (see page 20-80).
17. Remove the access panel from the floor.
18. Measure voltage between fuel pump 5P connector
terminal No.5 and body ground within the first 2
seconds after the ignition switch was turned ON (II).
FUEL PUMP 5P CONNECTOR
Wire side of female terminals
Is there battery voltage?
YES-Go to step 24.
NO-Go to step 19.
19. Turn the ignition switch OFF.
20. Remove the PGM-FI main relay 2.