Honda 2004 Odyssey Service Manual page 2156

15. Turn the ignition switch OFF. Disconnect the
battery negative cable, and wait for 3 minutes.
16. Disconnect the driver's airbag connector (A), front
passenger's airbag connector (B), and driver's seat
belt tensioner connector (C).
A
B
17. Disconnect the SRS main harness 18P connector
(A) from the SRS unit. Do not disconnect the special
tool from the right side wire harness 2P connector.
A
18. Check resistance between the No. 5 terminal and
the No. 12 terminal of the SRS main harness 18P
connector. There should be 2.0 3.0
C
Is the resistance as specif ied?
YES
main harness 18P connector and the SRS unit.
Check the connection; if the connection is OK,
replace the SRS unit (see page 23-382).
NO
harness; replace the SRS main harness.
SRS MAIN HARNESS 18P CONNECTOR
Wire side of female terminals
Faulty SRS unit or poor contact at the SRS
Open or increased resistance in the SRS main
.
23-91