2008 INFINITI QX56 Factory Service Manual

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Page 513 of 4083

INFINITI QX56 2008 Factory Service Manual BRC-46
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1116 STOP LAMP SWITCH
C1116 STOP LAMP SWITCH
DescriptionINFOID:0000000001686288
The stop lamp switch transmits the stop lamp switch
signal (ON/OFF) to the

Page 514 of 4083

INFINITI QX56 2008 Factory Service Manual C1116 STOP LAMP SWITCHBRC-47
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
C
D
E
G H
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J
K L
M A
B
BRC
N
O P
1. Disconnect the stop lamp relay harness connector E12.
2. Check the continuity between the ABS ac

Page 515 of 4083

INFINITI QX56 2008 Factory Service Manual BRC-48
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1120, C1122, C1124,
C1126 IN ABS SOL
C1120, C1122, C1124, C1126 IN ABS SOL
DescriptionINFOID:0000000001686292
The solenoid valve increases, holds or decre

Page 516 of 4083

INFINITI QX56 2008 Factory Service Manual C1120, C1122, C1124, C1126 IN ABS SOL
BRC-49
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control

C1120, C1122, C1124, C1126 IN ABS SOL
BRC-49
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec- tor.
3. Check voltage between ABS actuator and electric unit (control unit) harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK SOLENOID, VDC SWITCH-OVER VA LVE AND ACUATOR RELAY GROUND CIRCUIT
Check continuity between ABS act uator and electric unit (control
unit) harness connector terminals and ground.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-116, "
Removal and Installation".
NO >> Repair or replace malfunctioning components.
Component InspectionINFOID:0000000001686295
1.CHECK ACTIVE TEST
1. Select each test menu item on ”ACTIVE TEST“.
2. On the display, touch “UP”, “KEEP”, and “DOWN”, and check that the system operates as shown in the
table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
Is the inspection result normal?
YES >> Inspection End
ABS actuator and electric unit (control unit) —Volt a ge
Connector Terminal
E125 32Ground Battery voltage
AWFIA0018ZZ
ABS actuator and electric unit (control unit)
—Contin u it y
Connector Terminal
E125 16, 47GroundYes
AWFIA0016ZZ
Operation ABS solenoid valve
ABS solenoid valve (ACT)
UP KEEP DOWN UP ACTUA-
TOR UP ACTUA-
TOR KEEP
FR RH SOL
FR RH ABS SOLE-
NOID (ACT) FR RH IN SOL
OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
FR LH SOL
FR LH ABS SOLE-
NOID (ACT) FR LH IN SOL
OFF ON ON OFF OFF OFF
FR LH OUT SOL OFF OFF ON* OFF OFF OFF
RR RH SOL
RR RH ABS SOLE-
NOID (ACT) RR RH IN SOL
OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH SOL
RR LH ABS SOLE-
NOID (ACT) RR LH IN SOL
OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
REAR SOL RR RH IN SOL
OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH IN SOL OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
Revision: March 2010 2008 QX56

Page 517 of 4083

INFINITI QX56 2008 Factory Service Manual BRC-50
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1120, C1122, C1124,
C1126 IN ABS SOL
NO >> Go to diagnosis procedure. Refer to BRC-48, "Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001

Page 518 of 4083

INFINITI QX56 2008 Factory Service Manual C1121, C1123, C1125, C1127 OUT ABS SOL
BRC-51
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
C1121, C1123, C1125, C1127 OUT ABS SOL
DescriptionINFOID:0000000001686297
The sole

Page 519 of 4083

INFINITI QX56 2008 Factory Service Manual BRC-52
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1121, C1123, C1125,
C1127 OUT ABS SOL
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and elec tric unit (control unit) connec-
tor.
3. Check volt

BRC-52
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1121, C1123, C1125,
C1127 OUT ABS SOL
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and elec tric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control unit) harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK SOLENOID, VDC SWITCH-OVER VA LVE AND ACUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector terminals and ground.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-116, "
Removal and Installation".
NO >> Repair or replace malfunctioning components.
Component InspectionINFOID:0000000001691151
1.CHECK ACTIVE TEST
1. Select each test menu item on ”ACTIVE TEST“.
2. On the display, touch “UP”, “KEEP”, and “DOWN”, and check that the system operates as shown in the
table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
Is the inspection result normal?
YES >> Inspection End
ABS actuator and electric unit (control unit) —Volt a g e
Connector Terminal
E125 32Ground Battery voltage
AWFIA0018ZZ
ABS actuator and electric unit (control unit)
—Continuity
Connector Terminal
E125 16, 47GroundYes
AWFIA0016ZZ
Operation ABS solenoid valve
ABS solenoid valve (ACT)
UP KEEP DOWN UP ACTUA-
TOR UP ACTUA-
TOR KEEP
FR RH SOL
FR RH ABS SOLE-
NOID (ACT) FR RH IN SOL
OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
FR LH SOL
FR LH ABS SOLE-
NOID (ACT) FR LH IN SOL
OFF ON ON OFF OFF OFF
FR LH OUT SOL OFF OFF ON* OFF OFF OFF
RR RH SOL
RR RH ABS SOLE-
NOID (ACT) RR RH IN SOL
OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH SOL
RR LH ABS SOLE-
NOID (ACT) RR LH IN SOL
OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
REAR SOL RR RH IN SOL
OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH IN SOL OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
Revision: March 2010 2008 QX56

Page 520 of 4083

INFINITI QX56 2008 Factory Service Manual C1121, C1123, C1125, C1127 OUT ABS SOL
BRC-53
< COMPONENT DIAGNOSIS > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
NO >> Go to diagnosis procedure. Refer to BRC-51, "Diagnosis Procedure".
Special

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