Honda 2004 Odyssey Service Manual page 2152

16. Disconnect the driver's airbag connector (A), front
passenger's airbag connector (B), and front
passenger's seat belt tensioner connector (C).
A
B
C
17. Disconnect the SRS main harness 18P connector
(A) from the SRS unit, and disconnect the special
tool from the SRS main harness 2P connector.
A
18. Reconnect the battery negative cable.
19. Turn the ignition switch ON (II).
20. Check for voltage between the No. 4 terminal of the
SRS main harness 18P connector and body ground,
and between the No. 11 terminal and body ground.
There should be 0.5 V or less.
SRS MAIN HARNESS 18P CONNECTOR
Wire side of female terminals
Is the voltage as specif ied?
YES Faulty SRS unit or poor contact at the SRS
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 Short to power in the SRS main harness;
replace the SRS main harness.
23-87