Honda 2004 Odyssey Service Manual page 1820

4. With the driver's unit still disconnected, make these input tests at the connector and 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.
Cavity Wire
A1 Fuse/relay
box socket
A6
A24
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.
• 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.
Cavity Wire
O9 BLU/WHT
A3 GRN/ORN
A10 GRN/YEL
Test condition Test: Desired result
Under all Attach to ground:
conditions The ignition key light should
come on.
Combination Check for voltage to ground:
light switch There should be battery voltage.
ON, jump
battery
voltage to B16
(RED/GRN)
Ignition switch Check for voltage to ground:
ON (II) There should be battery voltage.
Test condition Test: Desired result
Ignition key is Check for voltage to ground:
in the ignition There should be 1 V or less.
switch
Ignition key is Check for voltage to ground:
out of the There should be 5 V or more.
ignition switch
Driver's door Check for voltage to ground:
open There should be 1 V or less.
Driver's door Check for voltage to ground:
closed There should be 5 V or more.
Left sliding Check for voltage to ground:
door open There should be 1 V or less.
Left sliding Check for voltage to ground:
door closed There should be 5 V or more.
Possible cause if result is not obtained
• Blown No. 47 (20A) fuse in the
under-hood fuse/relay box
• Blown LED
• An open in the wire
• Blown No. 10 (15A) fuse in the
passenger's under-dash fuse/
relay box
• Faulty taillight relay
• Faulty combination light switch
• An open in the wire
• Blown No. 9 (10A) fuse in the
driver's under-dash fuse/relay box
• Faulty driver's fuse/relay box
Possible cause if result is not obtained
• Poor ground (G401)
• Faulty ignition switch
• An open in the wire
• Faulty ignition switch
• A short in the wire
• Faulty driver's door switch
• An open in the wire
• Faulty driver's door switch
• A short in the wire
• Faulty left sliding door switch
• An open in the wire
• Faulty left sliding door switch
• A short in the wire
(cont'd)
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