Honda 2004 Odyssey Service Manual page 1805

Exterior Lights
Auto-off Headlight Control Unit Input Test (cont'd)
Door Multiplex Control Unit
6. Remove the driver's door panel, and disconnect the 20P connector A from the door multiplex control unit.
7. Inspect the connector and socket terminals to be sure they are all making good contact.
• If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
• If the terminals look OK, go to step 8.
8. Reconnect the connector to the unit, and make these input tests.
• If a test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, go to step 9.
Cavity Wire
A17 BLK/RED
9. 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.
22-126
DOOR MULTIPLEX CONTROL UNIT CONNECTOR A
Wire side of female terminals
Test condition Test: Desired result
Driver's door Check for voltage to ground:
lock knob There should be 5 V or more.
locked
Driver's door Check for voltage to ground:
lock knob There should be 1 V or less.
unlocked
BLK/RED
Possible cause if result is not obtained
• Faulty driver's door lock actuator
• Short to ground
• Poor ground (G401)
• Faulty driver's door lock actuator
• An open in the wire