Honda Ridgeline. Manual — part 462
03
Door Multiplex Control Unit
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-144
Keyless/Power Door Locks/Security System
Control Unit Input Test (cont’d)
WHT/BLK
WHT
YEL
DOOR MULTIPLEX CONTROL UNIT CONNECTOR (23P)
WHT/RED
YEL/RED
BRN/BLK
WHT/RED
BLK
13. Turn the ignition switch OFF.
14. Remove the power window master switch (see page 22-221).
15. Disconnect the 23P connector from the power window master switch.
16. 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 17.
17. With the connector still disconnected, make these input tests at the connector.
• If the test indicates a problem, find and correct the cause, then recheck the system.
• If the input tests prove OK, go to step 18.
16
BRN/BLK
Under all
conditions
Check for continuity between
the No. 16 terminal and
under-dash fuse/relay box
connector J (21P) No. 4
terminal:
There should be continuity.
An open in the wire
Check for continuity between
the No. 16 terminal and body
ground:
There should be no continuity.
A short in the wire
Wire side of female terminals
Cavity
Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
22-145
18. Reconnect the connector to the door multiplex control unit. Turn the ignition switch ON (II) and 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 19.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1
BLK
Under all
conditions
Check for voltage to ground:
There should be less than 0.5 V.
Poor ground (G501)
An open in the wire
15
WHT/RED
Under all
conditions
Check for voltage to ground:
There should be battery voltage.
Blown No. 7 (7.5 A) fuse in the
under-dash fuse/relay box.
An open in the wire
20
YEL
Ignition switch
ON (II)
Check for voltage to ground:
There should be battery voltage.
Blown No. 21 (7.5 A) fuse in the
under-dash fuse/relay box.
An open in the wire
7
WHT/BLK
Driver’s door
lock knob switch
unlocked
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock knob
switch
An open in the wire
Driver’s door
lock knob switch
locked
Check for voltage to ground:
There should be 5 V or more.
Faulty driver’s door lock knob
switch
Short to ground
22
YEL/RED
Driver’s door
lock knob switch
locked
Check for voltage to ground:
There should be less than 1 V.
Poor ground (G401)
Faulty driver’s door lock knob
switch
An open in the wire
Driver’s door
lock knob switch
unlocked
Check for voltage to ground:
There should be 5 V or more.
Faulty driver’s door lock knob
switch
Short to ground
8
WHT/RED
Driver’s door key
cylinder switch
in LOCK
Check for voltage to ground:
There should be less than 1 V.
Faulty driver’s door key cylinder
switch
Poor ground (G401)
An open in the wire
Driver’s door key
cylinder switch
in neutral
Check for voltage to ground:
There should be 5 V or more.
Short to ground
Faulty driver’s door key cylinder
switch
Driver’s door key
cylinder switch
in UNLOCK
Check for voltage to ground:
There should be 5 V or more.
21
WHT
Driver’s door key
cylinder switch
in UNLOCK
Check for voltage to ground:
There should be less than 1 V.
Faulty driver’s door key cylinder
switch
Poor ground (G401)
An open in the wire
Driver’s door key
cylinder switch
in neutral
Check for voltage to ground:
There should be 5 V or more.
Short to ground
Faulty driver’s door key cylinder
switch
Driver’s door key
cylinder switch
in LOCK
Check for voltage to ground:
There should be 5 V or more.
19. If all the input tests prove OK, and no DTCs were found during multiplex integrated control system
troubleshooting (B-CAN System Diagnostic Test Mode A) (see page 22-99), go to the B-CAN system input and
output index (see page 22-92). If multiple failures are found on more than one control unit, replace the under-dash
fuse/relay box (includes the MICU). If input failures are related to a particular control unit, replace that control unit.
01
02
03
04
SJC8A00J46660520901FEAT10
Driver’s door
Passenger’s door
22-146
Keyless/Power Door Locks/Security System
Door Lock Actuator Test
LOCK
UNLOCK
Terminal
Position
1
2
LOCK
UNLOCK
Terminal
Position
1
2
1. Remove the driver’s door panel (see page 20-7).
2. Disconnect the 2P connector from the actuator.
3. Check actuator operation by connecting power and
ground according to the table. To prevent damage
to the actuator, apply battery voltage only
momentarily.
4. If the actuator does not operate as specified,
replace it.
1. Remove the passenger’s door panel.
• Front door panel (see page 20-7)
• Rear door panel (see page 20-14)
2. Disconnect the 2P connector from the actuator.
3. Check actuator operation by connecting power and
ground according to the table. To prevent damage
to the actuator, apply battery voltage only
momentarily.
4. If the actuator does not operate as specified,
replace it.
01
02
SJC8A00J46660521011FEAT10
Driver’s Door
Front Passenger’s Door (RTS, RTL, and EXL
models)
22-147
Door Lock Knob Switch Test
Not used
1. Remove the driver’s door panel (see page 20-7).
2. Disconnect the 3P connector from the actuator.
3. Check for continuity between the terminals.
• There should be continuity between the No. 2
and No. 3 terminals when the door lock knob
switch is in the LOCK position and no continuity
when the switch is in the UNLOCK position.
• There should be continuity between the No. 1
and No. 3 terminals when the door lock knob
switch is in the UNLOCK position and no
continuity when the switch is in the LOCK
position.
4. If the continuity is not as specified, replace the door
lock actuator.
1. Remove the front passenger’s door panel (see page
20-7).
2. Disconnect the 3P connector from the actuator.
3. Check for continuity between the terminals.
There should be continuity between the No. 1 and
No. 3 terminals when the door lock knob switch in
the UNLOCK position and no continuity when the
switch is in the LOCK position.
4. If the continuity is not as specified, replace the door
lock actuator.
(cont’d)
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