fuses INFINITI QX56 2010 Factory Owner's Guide

POWER SUPPLY AND GROUND CIRCUITSEC-49
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT : Diagnosis ProcedureINFOID:0000000005147118
Regarding Wiring Diagram information, refer to SEC-94, "Wiring Diagram - INTELLIGENT KEY SYSTEM/
ENGINE START FUNCTION -".
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M70 terminals 6, 11 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace Intelligent Key unit power supply circuit.
2.CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector
M70 terminal 12 and ground.
Is the inspection result normal?
YES >> Power supply and ground circuits are OK.
NO >> Repair or replace the Intelligent Key unit ground circuit.
BCM
BCM : Diagnosis ProcedureINFOID:0000000005282706
Regarding Wiring Diagram information, refer to BCS-49, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
Connector Terminals Ignition switch position
M70 (+) (–) OFF
ON
6 Ground 0V Battery voltage
11 Battery voltage Battery voltage
WIIA1171E
12 - Ground : Continuity should exist.
WIIA1172E
Terminal No. Signal nameFuses and fusible link No.
57 Battery power supply 22 (15A)
70 F (50A)
11 Ignition ACC or ON 4 (10A)
38 Ignition ON or START 59 (10A)
Revision: April 20092010 QX56

SN
POWER SUPPLY AND GROUND CIRCUITSN-13
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure (With Rear Sonar System)INFOID:0000000005146194
Regarding Wiring Diagram information, refer to SN-23, "Wiring Diagram".
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown rear sonar system fuses.
Are any fuses blown?
YES >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to GI-
41, "Circuit Inspection".
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect sonar control unit connector.
2. Turn ignition switch ON.
3. Check voltage between sonar control unit connector B24 termi- nal 8 and ground.
Is there battery voltage?
YES >> GO TO 3.
NO >> Check harness for open between sonar control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sonar control unit connector B24 ter- minal 6 and ground.
Is there continuity?
YES >> Inspection End.
NO >> Check harness ground circuit.
Diagnosis Procedure (With Front and Rear Sonar System)INFOID:0000000005146195
Regarding Wiring Diagram information, refer to SN-33, "Wiring Diagram".
UnitPower Source FuseLocation
Sonar control unit ON or START 12
Fuse block (J/B)
51 IPDM E/R
Terminals Ignition switch position
(+) (-) ON or START
Connector Terminal
B24 8 Ground Battery voltage
WKIA1145E
Te r m i n a l s
Continuity
(+)
(–)
Connector Terminal
B24 6 Ground Yes
WKIA1146E
Revision: April 20092010 QX56

SN-14
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown sonar system fuses.
Are any fuses blown?
YES >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to GI-
41, "Circuit Inspection".
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect sonar control unit connector B56.
2. Turn ignition switch ON.
3. Check voltage between sonar control unit connector B56 termi- nal 1 and ground.
Is there battery voltage?
YES >> GO TO 3.
NO >> Check harness for open between sonar control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sonar control unit connector B56 ter-
minal 4 and ground.
Is there continuity?
YES >> Inspection End.
NO >> Check harness ground circuit.
Unit Power Source FuseLocation
Sonar control unit ON or START 12
Fuse block (J/B)
51 IPDM E/R
Te r m i n a l s
Vo l ta g e
(+)
(-)
Connector Terminal
B56 1 Ground Battery voltage
AWNIA1574ZZ
Te r m i n a l s
Continuity
(+)
(–)
Connector Terminal
B56 4Ground Yes
AWNIA1575ZZ
Revision: April 20092010 QX56

WCS
POWER SUPPLY AND GROUND CIRCUITWCS-15
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis ProcedureINFOID:0000000005382371
Regarding Wiring Diagram information, refer to WCS-30, "Wiring Diagram".
1.CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect combination meter connector M24.
2. Check voltage between combination meter harness connector M24 terminals 21, 37, 40 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Check harness for open between combination meter and fuse.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect combination meter connector M23.
3. Check continuity between combination meter harness connector M23 terminal 47, 52 and ground, and connector M24 terminal 20
and ground.
Unit Power source Fuse No.
Combination meter Battery 3
Ignition switch ON or START 14
Ignition switch ACC or ON 4
TerminalsIgnition switch position
(+) (–) OFF ACC ON START
Connector Terminal
M24 21
Ground 0V 0V
Battery
voltage Battery
voltage
37 0VBattery
voltage Battery
voltage 0V
40 Battery
voltage Battery
voltage Battery
voltage Battery
voltage
AWNIA0204ZZ
Te r m i n a l s
Continuity
(+)
(–)
Connector Terminal
A: M23 47
Ground Yes
52
B: M24 20
AWNIA0205ZZ
Revision: April 20092010 QX56

WCS-16
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES >> Inspection End.
NO >> Check ground harness.
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis ProcedureINFOID:0000000005382372
Regarding Wiring Diagram information, refer to WCS-59, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Terminal No. Signal nameFuses and fusible link No.
57 Battery power supply 22 (15A)
70 F (50A)
11 Ignition ACC or ON 4 (10A)
38 Ignition ON or START 59 (10A)
ConnectorTe r m i n a l s
Power
source Condition
Voltage (V) (Ap-
prox.)
(+) (-)
M18 11 Ground
ACC
power
supply Ignition
switch
ACC or ON Battery voltage
38 Ground Ignition
power
supply Ignition
switch ON or START Battery voltage
M20 57 Ground
Battery
power
supply Ignition
switch
OFF Battery voltage
70 Ground Battery
power
supply Ignition
switch OFF Battery voltage
LIIA2415E
Revision: April 20092010 QX56

WW-18
< COMPONENT DIAGNOSIS >
WIPER AND WASHER FUSE
COMPONENT DIAGNOSIS
WIPER AND WASHER FUSE
DescriptionINFOID:0000000005146770
Fuse list
Diagnosis ProcedureINFOID:0000000005146771
1. CHECK FUSES
Check that the following fuses are not blown.
Is the fuse blown?
YES >> Replace the fuse after repairing the applicable circuit.
NO >> The fuse is normal.
Unit LocationFuse No. Capacity
Front wiper motor IPDM E/R3930 A
Front and rear washer motor Fuse block (J/B)910 A
Unit LocationFuse No. Capacity
Front wiper motor IPDM E/R3930 A
Front and rear washer motor Fuse block (J/B)910 A
Revision: April 20092010 QX56