2007 INFINITI QX56 Factory Service Manual

Page 1705 of 3061

INFINITI QX56 2007  Factory Service Manual EC-622
< SERVICE INFORMATION >
ICC BRAKE SWITCH
 Without CONSULT-II
Check voltage between ECM terminal 101 and ground under the fol-
lowing conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
3.C

Page 1706 of 3061

INFINITI QX56 2007  Factory Service Manual ICC BRAKE SWITCH
EC-623
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
6.CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ICC brake switch harness connec

Page 1707 of 3061

INFINITI QX56 2007  Factory Service Manual EC-624
< SERVICE INFORMATION >
ICC BRAKE SWITCH
3. Check voltage between stop lamp switch terminal 3 and ground
with CONSULT -II or tester.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 .DETECT MALFUNCT

Page 1708 of 3061

INFINITI QX56 2007  Factory Service Manual ICC BRAKE SWITCH
EC-625
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
3. Check continuity between ICC brake switch terminals 1 and 2
under the following conditions.
If NG, adjust ICC brake s

Page 1709 of 3061

INFINITI QX56 2007  Factory Service Manual EC-626
< SERVICE INFORMATION >
IGNITION SIGNAL
IGNITION SIGNAL
Component DescriptionINFOID:0000000003532177
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplified b

Page 1710 of 3061

INFINITI QX56 2007  Factory Service Manual IGNITION SIGNAL
EC-627
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Wiring DiagramINFOID:0000000003532178
Specification data are reference values and are measured between each terminal and

Page 1711 of 3061

INFINITI QX56 2007  Factory Service Manual EC-628
< SERVICE INFORMATION >
IGNITION SIGNAL
TER-
MI-
NAL 
NO.WIRE 
COLORITEM CONDITION DATA (DC Voltage)
111 W / BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]
• For a few s

Page 1712 of 3061

INFINITI QX56 2007  Factory Service Manual IGNITION SIGNAL
EC-629
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CO