Honda Ridgeline. Manual — part 458
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SJC8A00J46643400000CAAT00
Security Alarm System
Panic Mode
22-128
Keyless/Power Door Locks/Security System
System Description
NOTE: This applies to RTS and RTL (USA) or EXL (Canada).
The security alarm system is armed automatically after the doors, hood, and trunk are closed and locked. For the
system to arm, the ignition switch must be off, the key must be removed, and the MICU must receive signals that the
doors, hood, in-bed trunk are closed and locked. The alarm can be disarmed at any time by unlocking the driver’s door
with the key or pressing the UNLOCK button on the remote transmitter.
When everything is closed and locked, the only inputs that are grounded, and have 0 V, are the driver’s door lock knob
switch (LOCK position), and the audio unit or CD changer. In other words, all of the other switches are open, and have
about 5 V with system awake and 1 V in sleep mode, including the key cylinder switches. The security indicator in the
driver’s door panel begins to flash immediately after the vehicle is completely closed and locked, and 15 seconds later,
the security system arms and the security indicator flashes on for a shorter amount of time than before. If the security
indicator does not flash, the system is not arming. A beep sounds and parking lights flash to confirm the security
alarm system is armed if the LOCK button is pressed a second time within 5 seconds.
If one of the switches is misadjusted or shorted internally, or there is a short in the circuit, the security system will not
arm. As long as the control unit continues to receive a ground signal (0 V), it senses that the vehicle is not closed and
locked, and the system will not arm. A switch that is slightly misadjusted can cause the alarm to sound for no apparent
reason. In this case, a significant change in outside air temperature, the vibration of a passing truck, or someone
bumping into the vehicle could cause the alarm to sound. There is no glass breakage or motion detector feature.
If anything is opened or improperly unlocked after the system is armed, the control unit receives a ground signal from
that switch, and the 1
5 V reference drops to 0 V. If the audio unit or CD changer is disconnected, the input loses its
ground, and the input voltage goes to 1
5 V. The system sounds the alarm when any of these occur:
• A door or the in-bed trunk is forced open
• A door is unlocked without using the key or the remote transmitter
• The hood is opened
• The audio unit or CD changer is disconnected
• The remote panic is operated
When the system sounds the alarm, the horns sound and the exterior lights flash for 2 minutes. The alarm can be
stopped at any time by unlocking the driver’s door with the key or by pressing any button on the remote transmitter.
The panic mode sounds the alarm in order to attract attention. When the PANIC button on the remote transmitter is
pressed and held for 2 seconds, the alarm sounds and the exterior lights flash for about 20 seconds.
The panic mode can be cancelled at any time by pressing any button on the remote transmitter or by turning the
ignition switch ON (II). The panic mode will not function if the ignition switch is ON (II).
Keyless Entry System
22-129
The keyless entry system is integrated with the MICU. The multiplex integrated control unit (MICU) receives LOCK,
UNLOCK and PANIC signals from the door multiplex control unit (keyless receiver).
The keyless entry system allows you to lock and unlock the vehicle with the remote transmitter. When you press the
LOCK button, all doors lock. When you press the UNLOCK button once, only the driver’s door unlocks. The other doors
will unlock at the second time you press the button. The doors will not lock with the remote transmitter if a door is not
fully closed, or if the key is in the ignition switch.
If the UNLOCK button is pressed, released, then pressed and held, the windows will start to open. The windows stop if
the button is released. See Power Windows and troubleshooting for more information.
When the switch for the ceiling light is in the center position, the ceiling light will come on as the UNLOCK button is
pressed. If a door is not opened, the light will go off in about 30 seconds, and the doors will relock. If the doors are
locked with the remote transmitter within 30 seconds, the light will go off immediately.
*90
SJC8A00J46643400000EAAT00
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22-130
Keyless/Power Door Locks/Security System
Circuit Diagram
20
J4
J9
K5
15
WHT/RED
A6
B4
D6
G1
2
3
1
BLU/YEL
Q7
YEL/BLU
G601
BLK
2
1
F5
RED/WHT
YEL
*
WHT/RED
BLK/YEL
B CAN
B CAN
MICU
DOOR LOCK SWITCH
POWER WINDOW MASTER SWITCH
16
BRN/BLK
IGN
LOCK
(Fuse/relay box socket)
(Fuse/relay box socket)
DOOR MULTIPLEX CONTROL UNIT
(Fuse/relay box socket)
1
BLK
G501
LOCK
UN
BLK
BLK
G401
21
WHT
WHT/RED
8
BLK
3
1
2
LOCK
YEL/RED
22
3
2
1
WHT/BLK
7
UNLOCK
LOCK
No.8 (20 A)
No.7 (7.5 A)
No.21 (7.5 A)
BLK/YEL
IGNITION SWITCH
IG1
BAT
YEL
WHT
No.15 (40 A)
BATTERY
No.22 (BAT) (120 A)
No.23 (IG) (50 A)
UNDER HOOD FUSE/RELAY BOX
UNDER DASH
FUSE/RELAY BOX
DRIVER’S
DOOR LOCK
KNOB
SWITCH
DRIVER’S
DOOR KEY
CYLINDER
SWITCH
IG1 HOT in ON (II)
and START (III)
DOOR
LOCK KNOB
UN
LOCK
KEYLESS
RECEIVER
ANTENNA
UNDER DASH
FUSE/RELAY
BOX
SECURITY
INDICATOR
IN BED
TRUNK LID
MAIN
SWITCH
(Closed :
Trunk lid open)
IN BED
TRUNK LID
ACTUATOR
IN BED
TRUNK LID
ACTUATOR/
LATCH
SWITCH
IN BED
TRUNK LID
LATCH
SWITCH
(Closed :
Trunk lid open)
LIGHT
(LED)
No.13
(20 A)
No.4
(15 A)
D
C
B
A
TRANSMITTER
KEY
*90
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22-131
: Communication line
K2
N9
H10
E8
E2
H3
N7
K12
MICU
RTS, RTL, and EXL models
* :
UNLOCK
UNLOCK
LOCK
UNDNER DASH FUSE/RELAY BOX
YEL/BLK
1
2
YEL/GRN
YEL/BLK
1
2
YEL
YEL/BLK
1
2
YEL
YEL
2
1
YEL/BLK
BLK
G602
RED/BLU
Q12
2
1
G403
BLK
P1
*
UNLOCK
2
1
BLK
Q4
GRY/BLU
G602
UNLOCK
3
1
BLK
Q3
BLK/RED
G501
G501
UNLOCK
BLK/WHT
Q2
BLK
3
1
*
UNLOCK
LOCK
UNLOCK
P29
BRN/WHT
3
1
9
1
2
BLK
P25
PNK/BLK
PNK/BLU
P9
G402
BLK
BLK
DOOR
LOCK KNOB
FRONT
PASSENGER’S
DOOR
LOCK
SWITCH
FRONT
PASSENGER’S
DOOR LOCK
KNOB
SWITCH
LEFT
REAR
DOOR
LOCK
KNOB
SWITCH
RIGHT
REAR
DOOR
LOCK
KNOB
SWITCH
IN BED
TRUNK LID
KEY
CYLINDER
SWITCH
IN BED
TRUNK LID
HANDLE
SWITCH
(Closed :
Switch ON)
RIGHT REAR
DOOR LOCK
ACTUATOR
LEFT REAR
DOOR LOCK
ACTUATOR
FRONT
PASSENGER’S
DOOR LOCK
ACTUATOR
DRIVER’S
DOOR LOCK
ACTUATOR
KEY
(cont’d)
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