Honda 2004 Odyssey, Service Manual

Page: 1804 / 2459

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
22-125
4. With the driver’s multiplex control unit still disconnected, make these input tests at the fuse/relay box socket.
• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, go to step 5.
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Under all
conditions Check for voltage to ground:
There should be battery voltage. Blown No. 13 (7.5A) fuse in the
passenger’s under-dash fuse/relay
box
An open in the wire
Ignition switch
ON (II) Check for voltage to ground:
There should be battery voltage. Blown No. 9 (10A) fuse in the driver’s
under-dash fuse/relay box
Faulty driver’s under-dash fuse/relay
box
5. Reconnect the driver’s multiplex control unit to the fuse/relay box, and perform the following input tests at the
appropriate connectors on the back of the fuse/relay box (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, go to step 6.
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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
A short to ground
Combination
light switch
ON Check for voltage to ground:
There should be about 12 V. Poor ground (G401)
Faulty combination light switch
Faulty driver’s multiplex control unit
Passing switch
ON Check for voltage to ground:
There should be 1 V or less. Poor ground (G401)
Faulty combination light switch
An open in the wire
Ignition key is
in the ignition
switch Check for voltage to ground:
There should be 1 V or less. Poor ground (G401)
Faulty ignition switch
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. Poor connection
Short to ground
Faulty driver’s multiplex control unit
Combination
light switch
ON Check for voltage to ground:
There should be about 12 V. Poor ground (G401)
Faulty combination light switch
Faulty driver’s side fuse box or driver’s
multiplex control unit
An open in the wire
Combination
light switch
ON Check for voltage to ground:
There should be 1 V or less. Poor ground (G401)
Faulty combination light switch
An open in the wire
: Multiplex connector B
(cont’d)
A12 Fuse/
relay
box
socket
A24
A3 GRN/
ORN
B16 RED/
GRN
B13 RED/
WHT
O9 BLU/
WHT
Q6 BLU/
WHT
Q7 RED/
YEL
03/07/29 10:21:21 61S0X050_220_0127