Honda Odyssey 2004. Manual — part 486
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-272
Power Door Locks/Factory Keyless/Factory Security
Control Unit Input Test (cont’d)
8. With the multiplex control unit still disconnected, make these input tests at the connector and fuse/relay box sockets.
• 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 9.
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A8
Fuse/relay
box socket
Under all conditions
Check for continuity to ground:
There should be continuity.
Poor ground (G581)
An open in the wire
A9
Jump A9 to body ground
The horn should sound.
Blown No. 47 (20A) fuse in the
under-hood fuse/relay box
Faulty horn relay
Faulty horn
An open in the wire
A21
Ceiling lights switch in the
middle position
Attach to ground:
Ceiling lights should come on with
the interior light switch in the
DOOR position.
Blown No. 11 (10A) fuse in the
passenger’s under-dash fuse/relay
box
Faulty interior lights relay
Faulty interior light switch
An open in the wire
Poor ground (G401)
A22
Ignition switch ON (II)
Check for voltage to ground:
There should be battery voltage.
Blown No. 9 (10A) fuse or faulty
driver’s under-dash fuse/relay box
An open in the wire
A23
Under all conditions
Check for voltage to ground:
There should be battery voltage.
Blown No. 12 (20A) fuse in the
passenger’s under-dash fuse/relay
box
Faulty passenger’s under-dash fuse/
relay box
A24
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
Faulty passenger’s under-dash fuse/
relay box
B22
BLK
Under all conditions
Check for continuity to ground:
There should be continuity.
Poor ground (G503)
An open in the wire
A10
Fuse/relay
box socket
Connect the A10 terminal to
the A23 terminal, and the
A11 to B22 momentarily
Check door lock operation:
The tailgate, the passenger’s door,
and both sliding doors should lock
(reverse the connection to unlock)
Blown No. 12 (20A) fuse in the
passenger’s under-dash fuse/relay
box
Faulty fuel fill door relay
Faulty door lock actuators
Faulty sliding door junction switch
An open in the wire
A11
B11
YEL
Connect the A10 terminal to
the A23 terminal, and the
B11 to B22 momentarily
The driver’s door and left sliding
door should lock
(reverse the connection to unlock)
B2
GRN/BLU
Under all conditions
Check for continuity between the
B2 terminal and keyless receiver
unit No. 4 terminal:
There should be continuity.
An open in the wire
B3
PNK/BLK
Under all conditions
Check for continuity between the
B3 terminal and keyless receiver
unit No. 5 terminal:
There should be continuity.
An open in the wire
B4
RED/YEL
Under all conditions
Check for continuity between the
B4 terminal and keyless receiver
unit No. 6 terminal:
There should be continuity.
An open in the wire
: ’01-04 EX and ’02-04 EXL models
03/07/29 10:25:52 61S0X050_220_0274
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-273
9. Reconnect the passenger’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 22-77).
• 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 10.
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B21
BLU
Ignition switch ON (II)
Check for voltage to ground:
There should be less than 1 V with
interior light switch in the DOOR
position.
Poor ground (G502)
Faulty connections at the audio or
navigation unit
Faulty audio unit
Faulty navigation display unit
An open in the wire
F3
·
J8
BLK/BLU
Front passenger’s door lock
or tailgate (
) key cylinder
locked
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G581)
Faulty or misadjusted front
passenger’s door lock key cylinder
switch
An open in the wire
A short to ground
Front passenger’s door lock
or tailgate (
) key cylinder
in neutral or unlocked
Check for voltage to ground:
There should be 5 V or more.
F7
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J11
ORN
Front passenger’s door lock
or tailgate (
) key cylinder
unlocked
Check for voltage to ground:
There should be 1 V or less.
Front passenger’s door lock
or tailgate (
) key cylinder
in neutral or locked
Check for voltage to ground:
There should be 5 V or more.
F5
BLU/ORN
Front passenger’s door lock
switch in UNLOCK
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G581)
Faulty front passenger’s door lock
switch
An open in the wire
A short to ground
Front passenger’s door lock
switch in neutral or locked
Check for voltage to ground:
There should be 5 V or more.
F6
BLK/ORN
Front passenger’s door lock
switch in LOCK
Check for voltage to ground:
There should be 1 V or less.
Front passenger’s door lock
switch in neutral or
unlocked
Check for voltage to ground:
There should be 5 V or more.
A14
GRN/WHT
Right sliding door open
Check for voltage to ground:
There should be 1 V or less.
Faulty right sliding door switch
An open in the wire
A short to ground
Right sliding door closed
Check for voltage to ground:
There should be 5 V or more.
A16
GRN
Front passenger’s door
open
Check for voltage to ground:
There should be 1 V or less.
Faulty front passenger’s door switch
An open in the wire
A short to ground
Front passenger’s door
closed
Check for voltage to ground:
There should be 5 V or more.
B14
RED/BLU
Right sliding door lock knob
unlocked (door fully closed)
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G581)
Faulty right sliding door lock knob
switch
Poor junction connector connection
An open in the wire
A short to ground
Right sliding door lock knob
locked (door fully closed)
Check for voltage to ground:
There should be 5 V or more.
F2
GRN/BLK
Front passenger’s door lock
knob unlocked
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G581)
Faulty front passenger’s door lock
knob switch
Faulty tailgate knob switch
An open in the wire
A short to ground
Front passenger’s door lock
knob locked
Check for voltage to ground:
There should be 5 V or more.
I4
GRN/BLK
Tailgate lock knob unlocked
Check for voltage to ground:
There should be 1 V or less.
Tailgate lock knob locked
Check for voltage to ground:
There should be 5 V or more.
: ’01-04 EX and ’02-04 EXL models
NOTE: When testing lock knob switches, make sure all doors are closed and locked, then unlock them one at a time.
(cont’d)
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*04
Door Multiplex Control Unit
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-274
Power Door Locks/Factory Keyless/Factory Security
Control Unit Input Test (cont’d)
WHT/YEL
BLU
GRN/RED
BLK/RED
BRN
BLK
BLK/WHT
PNK
BLU/WHT*
*: ’01-04 EX, ’02-04 EX-L
10. Remove the door multiplex control unit, and disconnect its connector.
11. Inspect the connector and socket terminals to be sure they are 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 12.
12. With the door unit still disconnected, make these input tests at the connector.
• 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.
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A1
WHT/YEL
Under all
conditions
Check for voltage to ground:
There should be battery
voltage.
Blown No. 13 (7.5A) fuse or faulty
passenger’s under-dash fuse/
relay box
An open in the wire
A12
BLK
Under all
conditions
Check for continuity to
ground:
There should be continuity.
Poor ground (G401)
An open in the wire
Wire side of
female terminals
03/07/29 10:25:53 61S0X050_220_0276
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-275
13. Reconnect the connector to the door unit, and perform the following 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 14.
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A16
BLU
Driver’s door key
cylinder switch in
UNLOCK
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty or misadjusted driver’s
door key cylinder switch
An open in the wire
Driver’s door key
cylinder switch in
neutral or locked
Check for voltage to ground:
There should be 5 V or more.
A6
BLU/WHT
Driver’s door key
cylinder switch in
LOCK
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty or misadjusted driver’s
door key cylinder switch
An open in the wire
Driver’s door key
cylinder switch in
neutral or unlocked
Check for voltage to ground:
There should be 5 V or more.
A7
PNK
Driver’s door lock
knob locked
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock
actuator
An open in the wire
Driver’s door lock
knob unlocked
Check for voltage to ground:
There should be 5 V or more.
A17
BLK/RED
Driver’s door lock
knob unlocked
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock
actuator
An open in the wire
Driver’s door lock
knob locked
Check for voltage to ground:
There should be 5 V or more.
A8
BLK/WHT
Driver’s door lock
switch in LOCK
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock
switch
Faulty tailgate lock switch
An open in the wire
Tailgate key cylinder
switch in LOCK (
2)
Check for voltage to ground:
There should be less than 1 V.
Tailgate key cylinder
switch or driver’s
lock switch in neutral
or unlocked (
2)
Check for voltage to ground:
There should be 5 V or more.
A18
GRN/RED
Driver’s door lock
switch in UNLOCK
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock
switch
Faulty tailgate key cylinder
switch
An open in the wire
Driver’s door lock
switch in neutral or
locked
Check for voltage to ground:
There should be 5 V or more.
Tailgate key cylinder
switch in UNLOCK
(
2)
Check for voltage to ground:
There should be less than 1 V.
Tailgate key cylinder
switch in neutral
(
2)
Check for voltage to ground:
There should be 5 V or more.
1: ’01-04 EX and ’02-04 EXL models
2: ’99-04 LX and ’99-04 EX models
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.
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