Honda 2004 Odyssey, Service Manual

Page: 1790 / 2459

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
22-111
5. Reconnect the driver’s multiplex control unit to the driver’s under-dash fuse/relay box, and perform the following
input tests at the appropriate connectors on the back of the driver’s under-dash fuse/relay box.
For driver’s under-dash fuse/relay box connector socket location (see page 22-76).
• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, the driver’s multiplex control unit must be faulty, replace it.
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A16 Fuse/relay
box socket
Driver’s door
open Check for voltage to ground:
There should be 1 V or less. Faulty driver’s door switch
An open in the wire
Driver’s door
closed Check for voltage to ground:
There should be 5 V or more. Faulty driver’s door switch
Short to ground
A18 Ignition switch
ON (II), driver’s
seat belt
unbuckled Check for voltage to ground:
There should be 1 V or less. Faulty driver’s seat belt switch
Poor ground (G551)
An open in the wire
Ignition switch
ON (II), driver’s
seat belt buckled Check for voltage to ground:
There should be 5 V or more. Faulty driver’s seat belt switch
Short to ground
A13 Ignition key is in
the ignition
switch Check for voltage to ground:
There should be 1 V or less. Faulty ignition switch
Poor ground (G401)
An open in the wire
Ignition key is
out of the
ignition switch Check for voltage to ground:
There should be 5 V or more. Faulty ignition switch
Short to ground
B5 WHT/BLU Engine running Check for voltage to ground:
There should be battery voltage. Faulty charging system
An open in the wire
Short to ground
A6 Fuse/relay
box socket
Combination
light switch ON
Jump battery
voltage to B16
(RED/GRN) on
automatic lights
off feature only. Check for voltage to ground:
There should be battery voltage. Blown No. 10 (15A) fuse in the
passenger’s under-dash fuse/
relay box
Faulty combination light switch
Faulty driver’s under-dash fuse/
relay box
An open in the wire
03/07/29 10:21:09 61S0X050_220_0113