Infiniti QX4. Electrical System (2003 year). Manual — part 19
Component Parts and Harness Connector
Location
NBEL0463
SEL512Y
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Component Parts and Harness Connector Location
EL-293
Schematic
NBEL0464
MEL334Q
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Schematic
EL-294
Wiring Diagram — ICC —
NBEL0465
MEL335Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC —
EL-295
MEL336Q
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-296
MEL337Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-297
MEL338Q
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-298
MEL339Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-299
MEL340Q
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-300
MEL341Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-301
MEL342Q
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-302
MEL343Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Wiring Diagram — ICC — (Cont’d)
EL-303
Terminals and Reference Value
NBEL0466
TERMINALS AND REFERENCE VALUE FOR ICC UNIT
NBEL0466S01
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
1(P)
2(P)
Body
ground
Battery power supply
OFF
—
Power supply voltage (Approx.
12)
4
(L/W)
Wiper motor HI signal
ON
Wiper HI operating
Approx. 0
Wiper HI not operating
Power supply voltage (Approx.
12)
5
(B/P)
CAN L
ON
—
SKIA1242E
6
(L/B)
Release switch power sup-
ply
ON
—
Approx. 10
8 (L)
24
(Y)
Brake pressure sensor
power supply
ON
—
Approx. 5
10
(BR)
Body
ground
Brake booster solenoid
(+) side
ON
—
SKIA1243E
12
(Y)
Brake booster solenoid
(–) side
ON
—
SKIA1243E
13
(L/Y)
Wiper motor LO signal
ON
Wiper LO operating
Approx. 0
Wiper LO not operating
Power supply voltage (Approx.
12)
14
(OR)
CAN H
ON
—
SKIA1244E
15
(P/B)
Brake release switch
(normal closed)
ON
Depress the brake pedal.
Approx. 0
Release the brake pedal.
Approx. 10
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Terminals and Reference Value
EL-304
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
17
(B/Y)
24
(Y)
Brake pressure sensor sig-
nal
ON
Release the brake pedal.
Approx. 0.5
Depress the brake pedal.
Approx. 0.5 - 5
(Note) Voltage becomes higher
depending on effectiveness of
depressing brakes.
19(B)
20(B)
46(B)
Body
ground
Ground
ON
—
Approx. 0
21(Y)
ICC warning chime
ON
Activated
Approx. 0 - 12
Not activated
Approx. 12
22
(R)
Brake release switch
(normally open)
ON
Depress the brake pedal.
Approx. 10
Release the brake pedal.
Approx. 0
25
(PU/W)
ICC system warning lamp
signal
ON
When warning lamp is ON
Approx. 0
When warning lamp is OFF
Power supply voltage (Approx.
12)
29(Y/G)
ICC brake switch (normal
closed)
ON
Selector
lever: Not in
“N” or “P”
position
Depress the brake
pedal.
Approx. 0
Release the brake
pedal.
Power supply voltage (Approx.
12)
31
(R/Y)
Vehicle speed signal
ON
Speedometer operated
SEL513Y
33(W/G)
42(W/G)
Ignition switch ON or
START
ON
—
Battery voltage (Approx. 12)
36
(LG)
ABS operation signal
ON
—
SEL513Y
38
(G/Y)
Stop lamp switch
(normally open)
ON
Depress the brake pedal.
Battery voltage (Approx. 12)
Release the brake pedal.
Approx. 0
40
(BR/W)
Parking brake signal
ON
Parking brake is ON
Power supply voltage (Approx.
12)
Parking brake is OFF
Approx. 0
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Terminals and Reference Value (Cont’d)
EL-305
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
41
(Y/B)
Body
ground
Meter communication signal
(TX)
ON
—
SEL515Y
43
(L/R)
ABS fail-safe signal
ON
ABS system normal
Battery voltage (Approx. 12)
ABS system malfunction
Approx. 0
47
(LG/B)
Stop lamp drive output sig-
nal
ON
Brake operating with ICC system
Battery voltage (Approx. 12)
Brake not operating with ICC sys-
tem
Approx. 0
48
(G/W)
Meter communication signal
(RX)
ON
—
SEL515Y
49
(GY/L)
58
(G/Y)
ICC steering switch signal
ON
When ON/OFF switch is pressed
Approx. 0
When CANCEL switch is pressed
Approx. 1.1
When DISTANCE adjusting switch
is pressed
Approx. 2.1
When COAST/SET switch is
pressed
Approx. 2.9
When ACCELERATE/RESUME
switch is pressed
Approx. 3.6
When no switch is pressed
Approx. 4.2
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Terminals and Reference Value (Cont’d)
EL-306
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
51
(W/B)
Body
ground
Engine speed signal
ON
Engine speed is at idle.
SEL517Y
53
(L/OR)
D-range signal
ON
When selector lever position is “D”
Battery voltage (Approx. 12)
When selector lever position is not
“D”
Approx. 0
55
(L/Y)
Shift solenoid valve A
ON
When shift solenoid valve A oper-
ates.
(When driving in “D
1
” or “D
4
”)
Battery voltage (Approx. 12)
When shift solenoid valve A does
not operate.
(When driving in “D
2
” or “D
3
”)
Approx. 0
57
(R/B)
Vacuum motor/air valve/
release valve output signal
ON
Being controlled
Power supply voltage (Approx.
12)
59
(R)
A/T OD cancel signal
ON
When O/D is canceled
Approx. 2 or less
O/D
Approx. 5 - 10
61
(OR/B)
Throttle position switch sig-
nal (Full)
ON
Accelerator pedal more than half
depressed
Battery voltage (Approx. 12)
Accelerator pedal released
Approx. 0
62
(OR/W)
Throttle position switch sig-
nal (Idle)
ON
Accelerator pedal depressed
Approx. 0
Accelerator pedal released
Battery voltage (Approx. 12)
63
(LG/R)
Shift solenoid valve B
ON
When shift solenoid valve B oper-
ates.
(When driving in “D
1
” or “D
2
”)
Battery voltage (Approx. 12)
When shift solenoid valve B does
not operate.
(When driving in “D
3
” or “D
4
”)
Approx. 0
67
(R/W)
Cruise output signal
ON
Being controlled
Approx. 8
Not controlled
Approx. 0
69
(P)
68
(B/P)
Throttle opening angle sig-
nal
ON
When accelerator pedal is fully
released
Approx. 0.5
When accelerator pedal is fully
depressed
Approx. more than 3.7
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Terminals and Reference Value (Cont’d)
EL-307
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
70
(Y/R)
Body
Ground
Release valve signal
ON
When motor is not driving
Power supply voltage (Approx.
12)
When motor is driving
Approx. 0
71
(G/Y)
Air valve signal
ON
When motor is not driving
Power supply voltage (Approx.
12)
When motor is driving
Approx. 0
72
(L/R)
Vacuum motor signal
ON
When motor is not driving
Power supply voltage (Approx.
12)
When motor is driving
Approx. 0
TERMINALS AND REFERENCE VALUE FOR ICC
SENSOR
NBEL0466S02
TERMINALS
(WIRE COLOR)
ITEM
CONDITION
VOLTAGE (V)
+
–
IGNITION
SWITCH
OPERATION
1
(W/G)
Body
ground
ICC sensor power
ON
—
Battery voltage (Approx. 12)
3
(P/B)
CAN H
ON
—
SKIA1244E
6
(LG/B)
CAN L
ON
—
SKIA1243E
4(B)
Ground
ON
—
Approx. 0
TERMINALS AND REFERENCE VALUE FOR ICC
WARNING CHIME
NBEL0466S03
TERMINALS
(WIRE
COLOR)
ITEM
CONDITION
VOLTAGE(V)
IGNITION
SWITCH
OPERATION
1
(W/G)
Ignition switch ON or
START
ON
—
Power supply voltage (Approx.
12)
2
(Y)
ICC warning signal
ON
Chime output OFF
Approx. 12
Chime output ON
Approx. 0 - 12
INTELLIGENT CRUISE CONTROL (ICC) SYSTEM
Terminals and Reference Value (Cont’d)
EL-308
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