Honda 2004 Odyssey Service Manual page 1888

12. With the door multiplex control unit still disconnected, make these input tests at the connectors.
• 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 13.
Cavity Wire
A1 WHT/YEL Under all conditions
A2 GRN/WHT Ignition switch ON (II)
A12 BLK Under all conditions
A19
B1
A11 RED/BLU Connect the A10
A10 RED/YEL terminal to the A12
terminal, and the A11
terminal to the A1
terminal
13. Reconnect the door multiplex control unit, and perform the following input test.
• 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 14.
Cavity Wire
A4 RED While operating the
driver's window switch
B2 WHT/RED Operate the passenger's
switch with master
main switch OFF
14. If all the input tests prove OK, one of the control units must be faulty. Substitute a known-good control unit for the
one that is most likely at fault, then recheck the system. If the system works properly, the original control unit is
faulty; replace it. If there is still a malfunction, substitute a known-good control unit for the next most likely unit to
be at fault, and recheck. If the system works properly, the original unit is faulty; replace it.
Test condition Test: Desired result
Check for voltage to
ground:
There should be battery
voltage.
Check for voltage to
ground: There should be
battery voltage.
Check for continuity to
ground:
There should be continuity.
Check the driver's window
motor operation:
The window should go up
(reverse the wires for
down).
Test condition Test: Desired result
Check for voltage between
the A4 and A12 terminals:
Approx. 6 V should be
indicated as the driver's
window motor runs.
Check for voltage to
ground:
There should be battery
voltage.
Possible cause if result is not obtained
• Blown No. 13 (7.5A) fuse in the
passenger's under-dash fuse/
relay box
• An open in the wire
• Blown No. 15 (20A) fuse in the
passenger's under-dash fuse/
relay box
• An open in the wire
• Poor ground (G401, G551)
• An open in the wire
• Faulty driver's window motor
• An open in the wire
Possible cause if result is not obtained
• Faulty pulser
• Faulty driver's window motor
• An open in the wire
• Short to ground
• Faulty passenger's switch
• An open in the wire
22-209
(cont'd)