2004 INFINITI QX56 Factory Service Manual

Page 1809 of 3371

INFINITI QX56 2004  Factory Service Manual EC-618Revision: August 2007
ICC BRAKE SWITCH
2004 QX56
7. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ICC brake switch terminal

Page 1810 of 3371

INFINITI QX56 2004  Factory Service Manual ICC BRAKE SWITCH
EC-619
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
11 .  DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M31, E152
Fuse block (J/B) connector M60
10

Page 1811 of 3371

INFINITI QX56 2004  Factory Service Manual EC-620Revision: August 2007
ICC BRAKE SWITCH
2004 QX56
3. Check continuity between stop lamp switch terminals 3 and 4
under the following conditions.
If NG, adjust stop lamp switch installation, refer

Page 1812 of 3371

INFINITI QX56 2004  Factory Service Manual ASCD BRAKE SWITCH
EC-621
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
ASCD BRAKE SWITCHPFP:25320
Component DescriptionUBS00HDO
When the brake pedal is depressed, ASCD brake switch is turne

Page 1813 of 3371

INFINITI QX56 2004  Factory Service Manual EC-622Revision: August 2007
ASCD BRAKE SWITCH
2004 QX56
Wiring DiagramUBS00HDQ
BBWA11 93 E

Page 1814 of 3371

INFINITI QX56 2004  Factory Service Manual ASCD BRAKE SWITCH
EC-623
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM gro

Page 1815 of 3371

INFINITI QX56 2004  Factory Service Manual EC-624Revision: August 2007
ASCD BRAKE SWITCH
2004 QX56
2. CHECK OVERALL FUNCTION-II
 With CONSULT-II
Check “BRAKE SW2” indication in “DATA MONITOR” mode. 
 Without CONSULT-II
Check voltage be

Page 1816 of 3371

INFINITI QX56 2004  Factory Service Manual ASCD BRAKE SWITCH
EC-625
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness c