Honda 2004 Odyssey Service Manual page 1925

Multiplex Control System
Troubleshooting (cont'd)
11. Check for continuity between No.14 terminal of the
driver's under-dash fuse/relay box socket and body
ground.
DRIVER'S UNDER-DASH FUSE/RELAY BOX SOCKET
Is there continuity?
YES Go to step 12.
NO Repair an open in the wire between driver's
multiplex control unit and body ground. If the wire
is OK, check for poor ground at G401.
12. Check for continuity between No.11 terminal of the
driver's multiplex control unit connector B (22P)
and body ground.
DRIVER'S MULTIPLEX CONTROL UNIT CONNECTOR B (22P)
BLK
Wire side of female terminals
Is there continuity?
YES Go to step 13.
NO Repair an open in the wire between driver's
multiplex control unit connector B and ground. If
the wire is OK, check for door ground at G501.
22-246
13. Check for continuity between No.1 terminal of the
MPCS inspection connector and the No. 15 terminal
of the driver's under-dash fuse/relay box socket.
MPCS INSPECTION CONNECTOR
DRIVER'S UNDER-DASH FUSE/RELAY BOX SOCKET
Is there continuity?
YES Go to step 14.
NO Repair an open in the wire between the MPCS
inspection connector and the driver's under-dash
fuse/relay box. If the wire is OK, replace the driver's
under-dash fuse/relay box.
14. Check for continuity between No. 3 terminal of the
MPCS inspection connector and body ground.
MPCS INSPECTION CONNECTOR
Is there continuity?
YES If there is still no Mode 1 indication, replace
the driver's multiplex control unit and recheck the
symptom.
NO Repair an open in the wire between the
inspection connector and body ground. If the wire
is OK, check for a poor ground at G401.