Honda Civic 2002-2003 Service Manual page 381

EVAPSystem
OTe Troubleshooting (cont'd)
6. Turn the ignition switch OFF.
7. Reinstall the fuel fill cap.
8. Disconnect the FTP sensor 3P connector.
9. Turn the ignition switch ON (II).
10. Measure voltage between FTP sensor 3P connector
terminals No.1 and No.2.
FTP SENSOR 3P CONNECTOR
3
SG3IPNK)
Wire side of female terminals
Is there about 5 V?
YES-Go to step 11.
NO-Repair open in the wire between the FTP
sensor and the ECM (E4) .•
11-174
11. Measure voltage between FTP sensor 3P connector
terminals No.2 and NO.3.
FTP SENSOR 3P CONNECTOR
FTPILTGRN)
SG3IPNK)
Wire side of female terminals
Is there about 5 V?
YES-Replace the FTP sensor .•
NO-Gotostep 12.
12. Measure voltage between ECM connector
terminals E4 and E14.
ECM CONNECTOR E 131 P)
SG3IPNK)
1 213 4 5 6
71J8T9
' : :L
/ /VVI1
415 16
VI18VI20
21
22231241
l:
~ 271/129130 31
FTPILTGRN)
Wire side of female terminals
Is there about 5 V?
YES-Repair open in the wire between the FTP
sensor and the ECM (E14) .•
NO-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 .•
•