Honda 2004 Odyssey Service Manual page 1924

5. Check for a DTC.
• If there is no DTCs present:
The ignition key light and beeper will not blink/
beep again after the Mode 1 indication.
• If there is no DTC present:
About 1 second after entering Mode 1, the
ignition key light and beeper indicate the DTC(s),
then repeat it every 3 seconds. If there is more
than one DTC, the system will indicate them in
ascending order.
Is there a DT C present?
YES Follow the procedure in the chart below.
NO Go to Mode 2 (see page 22-247).
DTC(s) Cause
1 The driver's unit
is not able to
receive signals
from the door
unit.
2 The driver's unit
is unable to
receive signals
from the
passenger's unit.
3 Malfunction in
the driver's unit.
4 Signal from
each unit do not
match.
5 The passenger's
unit is not able
to receive
signals from the
other units.
6 The door unit is
not able to
receive signals
from the other
units.
1, 2 and 3 Communication
Slmultaneously (BRN or PNK)
wire is shorted.
(12 V or Ground)
Procedure
Go to BRN wire
communication line
test (see page 22-
248)
Go to PNK wire
communication line
test (see page 22-
249)
Go to multiplex
control system input
test. If all inputs are
OK, replace driver's
multiplex control unit .
Confirm correct
multiplex control
units are installed.
Go to multiplex
control system input
test. If all inputs are
OK, replace
passenger's
multiplex control unit .
Go to multiplex
control system input
test. If all inputs are
OK, replace door
multiplex control unit .
Go to shorted
communication line
test (see page 22-
249)
6. Remove the special tool from the MPCS inspection
connector.
7. Remove driver's multiplex control unit from the
driver's under-dash fuse/relay box.
8. Check for voltage between the No. 12 terminal of
the driver's fuse/relay box socket and body ground.
DRIVER'S UNDER-DASH FUSE/RELAY BOX SOCKET
Is there battery voltage?
YES Go to step 9.
NO Replace the driver's under-dash fuse/relay
box.
9. Turn ignition switch ON (II).
10. Check for voltage between No. 24 terminal of the
driver's fuse/relay box socket and body ground.
DRIVER'S UNDER-DASH FUSE/RELAY BOX SOCKET
Is there battery voltage?
YES Go to step 11.
NO Repair an open in the wire between No. 13
fuse in the passenger's under-dash fuse/relay box
and the driver's under-dash fuse/relay box
socket.
(cont'd)
22-245