Honda 2004 Odyssey Service Manual page 2413

SRS
Symptom Troubleshooting (cont'd)
16. Disconnect the SRS main harness 18P connector
(A) from the SRS unit.
A
17. Reconnect the negative battery cable.
18. Connect a voltmeter between the No. 7 terminal of
the SRS main harness 18P connector and body
ground. Turn the ignition switch ON (II), and
measure the voltage. There should be battery
voltage.
SRS MAIN HARNESS 18P CONNECTOR
Wire side of female terminals
Is there battery voltage?
YES Faulty SRS unit or poor contact at the SRS
main harness 18P connector; check the connection.
If the connection is OK, replace the SRS unit.
NO Go to step 19.
19. Turn the ignition switch OFF.
23-348
20. Disconnect the SRS main harness 2P connector (A)
from the driver's under-dash fuse/relay box.
A
21. Check resistance between the No. 7 terminal of the
SRS main harness 18P connector and the No. 1
terminal of the SRS main harness 2P connector.
There should be 0 1.0
SRS MAIN HARNESS 2P CONNECTOR
Wire side of
female terminals
SRS MAIN HARNESS 18P CONNECTOR
Is resistance as specif ied?
YES Open in the driver's under-dash fuse/relay
box or poor contact at the SRS main harness 2P
connector; check the connection. If the connection
is OK, replace the driver's under-dash fuse/relay
box or repair it.
NO Open in the SRS main harness; replace the
SRS main harness.
.