Honda Civic 2002-2003 Service Manual page 1104

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8. Check for voltage between the NO.4 terminal of
OPDS unit harness 8P connector and body ground.
There should be battery voltage.
OPOS UNIT HARNESS 8P CONNECTOR
7 8
Wire side of female terminals
Is there battery voltage?
YES-Go to step 16.
NO-Open in the floor wire harness or OPDS unit
harness; replace the faulty harness .•
9. Replace the No. 9110AI fuse in the under-dash
fuse/relay box.
10. Turn the ignition switch ON III) for 30 seconds, then
turn it off.
11. Check the No. 9 110A) fuse.
Is the fuse OK?
YES-Intermittent failure, system is OK at this time.
Go to Troubleshooting Intermittent Failures Isee
page 23-26).
NO-Go to step 12.
12. Replace the No.9 110AI fuse.
13. Disconnect OPDS unit harness 8P connector IAI
from the OPDS unit.
o
14. Turn the ignition switch ON 1111 for 30 seconds, then
turn it off.
15. Check the No. 9110AI fuse.
Is the fuse OK?
YES-Short to ground in the OPDS unit; replace the
OPDS unit Isee page 23-1241 .•
NO-Short to ground in the No. 9110A) fuse circuit
Ifloor harness, or OPDS harness); replace the
affected harness .•
16. Turn the ignition switch OFF.
17. Check resistance between the No.8 terminal of
OPDS unit harness 8P connector and body ground.
There should be 0-1.0
Q.
OPOS UNIT HARNESS 8P CONNECTOR
Wire side of female terminals
Is the resistance as specified?
YES-Go to step 18.
NO-Open in the floor wire harness or OPDS unit
harness, or poor ground IG5511. If G551 is OK,
replace the faulty harness .•
Icont'dl
23-97