Honda Odyssey 2004. Manual - part 480
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Inputs monitored by Passenger’s Multiplex Control Unit
Switch/Circuit
Note:
YES
NO
BRN Wire Communication Line Test
YES
NO
Communication Line Test
22-248
22-248
Multiplex Control System
Troubleshooting (cont’d)
DRIVER’S UNDER-DASH FUSE/RELAY BOX SOCKET
DOOR MULTIPLEX CONTROL UNIT CONNECTOR A (20P)
BRN
Front passenger’s key
cylinder switch
(LOCK/UNLOCK)
Front passenger’s door
lock knob switch
(UNLOCK EX models)
Right rear sliding door
lock knob switch
(UNLOCK EX models)
Front passenger’s door
lock switch (LOCK/
UNLOCK)
Front passenger’s door
switch (OPEN)
Right rear sliding door
switch (OPEN)
Tailgate key cylinder
switch
Security input
(DISCONNECTED EX
models)
1: The multiplex system should flash the ignition
key light and sound the beeper each time when the
key is turned to the LOCK or UNLOCK position, and
should not flash/beep as the key is returned to the
neutral position.
The multiplex system is OK. If the symptom
is still present, go to the input test for the system
with the problem (see these items), or refer to
multiplex input test (see page 22-250).
• Power door locks (see page 22-267)
• Security (EX models) (see page 22-267)
• Keyless (EX models) (see page 22-267)
• Power windows (includes key-off timer
operation) (see page 22-208)
•
(see page 22-140)
•
(see page 22-226)
•
(see page 22-110)
•
(see page 22-110)
• Dash lights brightness control (see page 22-154)
• Engine oil pressure indicator (see page 22-110)
Find the open or short in the circuit that was
not confirmed by the multiplex control system. If
the circuit is OK, replace the multiplex control unit
that monitors the circuit.
1. Remove the driver’s multiplex control unit from the
driver’s under-dash fuse/relay box.
2. Carefully pry off driver’s door switch trim (see page
20-7).
3. Disconnect door multiplex connector A (20P).
4. Check for continuity between No. 2 terminal of the
driver’s under-dash fuse/relay box socket and
No. 15 terminal of the door multiplex control unit
connector A (20P).
Replace the multiplex control unit most
closely related to failure.
Repair an open in the wire between the door
multiplex connector and the driver’s under-dash
fuse/relay box. If the wire is OK, replace the under-
dash fuse/relay box.
1
Turn the key two times
consecutively to each position
(LOCK/UNLOCK) to prevent
input from lock knob switches
causing false input
confirmations.
Start this test with both lock
knobs in the locked position.
Unlock one lock knob at a time,
and then return it to the locked
position before testing the next
lock knob switch.
Test by disconnecting then
reconnecting the Radio,
Navigation Display Unit, RES
display unit or RES DVD player
connector.
Entry light control, Key light timer
Automatic lights off (EX models)
Windshield wiper controls (front and rear)
Reminder chimes (Key-in, seat belt, lights-on)
Did the multiplex contr ol system conf ir m all the
cir cuits by f lashing the ignition key light and
sounding the beeper ?
Is ther e continuity?
03/07/29 10:24:34 61S0X050_220_0250