2008 INFINITI QX56 battery voltage

NONE OF THE THIRD ROW POWER FOLDING SEATS WILL OPERATE WITH
ANY SWITCH.
SE-31
< SYMPTOM DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
SE
N
O P
NONE OF THE THIRD ROW POWER FOLDING SEATS WILL OPERATE
WITH ANY SWITCH.
None of the Third Row Power Folding Seats Will Operate With Any Third Row Power
Folding Seat Switch
INFOID:0000000001735726
1.PRELIMINARY CHECK
Perform preliminary check. Refer to SE-5, "
Preliminary Check".
Are inspection results normal?
YES >> GO TO 2.
NO >> Perform repairs as necessary.
2.THIRD ROW POWER FOLDING SEAT SWITCH GROUND
1. Turn ignition switch OFF.
2. Disconnect any third row power folding seat switch connector.
3. Check continuity between third row power folding seat switch harness connector terminal 4 and ground.
Is there continuity?
YES >> GO TO 3.
NO >> Repair ground circuit.
3.TRANSMISSION RANGE SWITCH SIGNAL
1. Confirm A/T selector lever is in PARK position.
2. Turn ignition switch ON.
3. Check voltage between third row power folding seat control unit harness connector B401 terminal 7 and ground.
Is there battery voltage?
YES >> Replace third row power folding seat control unit. Refer to SE-63, "Power seat cross beam".
NO >> Repair circuit as necessary.
ALJIA0116ZZ
Terminals Ignition switch
(+)
(-)ON
Third row power
folding seat
control unit Te r m i n a l N o .
B401 7Ground Battery voltage
ALJIA0278ZZ
Revision: March 2010 2008 QX56

SEC-26
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2013 ID DISCORD I-KEY-STRG
B2013 ID DISCORD I-KEY-STRG
DescriptionINFOID:0000000001539123
Intelligent Key unit performs the ID verification with the
steering lock solenoid and releases the steering lock if
both Intelligent Key unit and steering lock solenoid ID are same. Intelligent Key unit starts the communication
with the steering lock solenoid when Intelligent Key is carried into the vehicle and the ignition knob switch is
pressed.
DTC LogicINFOID:0000000001539124
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the ignition knob switch.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-26, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000001539125
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.
Can the system be initialized and can steering lo ck be released with re-registered mechanical key?
YES >> Steering lock solenoid was unregistered.
NO >> GO TO 2
2.CHECK STEERING LOCK SOLENOID POWER SUPPLY-1
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
DTC No.Trouble diagnosis
name DTC detecting condition
Possible cause
B2013 STRG COMM 1 The ID verification results between Intelligent Key
unit and steering control unit are NG. The registra-
tion is necessary.
Steering lock solenoid
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Steering lock solenoid con-
nector Te r m i n a l
M15 1Ground Battery voltage
WIIA1202E
Revision: March 2010 2008 QX56

SEC-30
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2190, P1614 NATS ANTENNA AMP.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace fuse or harness.
4.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NATS antenna amp. connector.
3. Check continuity between NATS antenna amp. connector M21 terminal 3 and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> • Repair or replace harness. NOTE:
If harness is OK, replace BCM, refer to BCS-55,
"Removal and Installation". Perform initialization with
CONSULT-III. For initialization, refer to “CONSULT-III
Operation Manual”.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
1. Connect NATS antenna amp. connector.
2. Turn ignition switch ON.
3. Check voltage between NATS antenna amp. connector M21 ter- minal 2 and ground with analog tester.
Is the inspection result normal?
YES >> GO TO 6
NO >> • Repair or replace harness. NOTE:
If harness is OK, replace BCM, refer to BCS-55, "
Removal and Installation". Perform initializa-
tion with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual”.
1 - Ground
: Battery voltage
LIIA1280E
3 - Ground: Continuity should exist.
LIIA1283E
LIIA1281E
Te r m i n a l s
Position of ignition key cylinder Voltage (V)
(Approx.)
( + ) ( - )
2G ro un d Before inserting ignition key
Battery voltage
After inserting ignition key Pointer of tester should move for approx. 30 seconds,
then return to battery voltage
Just after turning ignition switch ON Pointer of tester should move for approx. 1 second, then
return to battery voltage
Revision: March 2010 2008 QX56

B2190, P1614 NATS ANTENNA AMP.SEC-31
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M21 terminal
4 and ground with analog tester.
Is the inspection result normal?
YES >> NATS antenna amp. is malfunctioning.
NO >> • Repair or replace harness. NOTE:
If harness is OK, replace BCM, refer to BCS-55, "
Removal and Installation". Perform initializa-
tion with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual”.
LIIA1282E
Te r m i n a l s
Position of ignition key cylinder Voltage (V)
(Approx.)
( + ) ( - )
4G ro u nd Before inserting ignition key
Battery voltage
After inserting ignition key Pointer of tester should move for approx. 30 seconds,
then return to battery voltage
Just after turning ignition switch ON Pointer of tester should move for approx. 1 second, then
return to battery voltage
Revision: March 2010 2008 QX56

SEC-40
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT
: Diagnosis ProcedureINFOID:0000000004807914
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:0000000004807913
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
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: March 2010 2008 QX56

POWER SUPPLY AND GROUND CIRCUITSEC-41
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
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
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> INSPECTION END
NO >> Repair or replace harness.
Connector Te 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
BCM
GroundContinuity
Connector Terminal
M20 67 Yes
LIIA0915E
Revision: March 2010 2008 QX56

SEC-44
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
IGNITION KNOB SWITCH
IGNITION KNOB SWITCH
Ignition Knob
Switch CheckINFOID:0000000001539156
1.CHECK IGNITION KNOB SWITCH
With CONSULT-III
Display “PUSH SW” on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch oper-
ation.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M70 terminal 27 and ground.
Is the inspection result normal?
YES >> Ignition knob switch is OK.
NO >> GO TO 2
2.CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch harness connector M12 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace key switch and ignition knob switch power supply circuit.
3.CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 1 and 2.
Monitor item Condition
PUSH SW Ignition switch is pushed: ON
Ignition switch is released: OFF
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M70 27 Ground Ignition switch is
pushed
Battery voltage
Ignition switch is re-
leased 0
WIIA1175E
1 - Ground
: Battery voltage
PIIB4257E
Revision: March 2010 2008 QX56

SEC-46
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HOOD SWITCH
HOOD SWITCH
Diagnosis ProcedureINFOID:0000000001602186
1.CHECK HOOD SWITCH
Check hood switch and hood fitting condition.
Is the inspection result normal?
YES >> GO TO 2
NO >> Adjust installation of hood switch.
2.CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-III
Check "HOOD SW" in "BCM" DATA MONI TOR mode with CONSULT-III. Refer to SEC-21, "
THEFT ALM :
CONSULT-III Function (BCM - THEFT ALM)".
Without CONSULT-III
Check voltage between IPDM E/R harness connector E122 terminal
41 and ground.
Is the inspection result normal?
YES >> Hood switch is OK.
NO >> GO TO 3
3.CHECK HOOD SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E122 and hood switch connector.
3. Check continuity between IPDM E/R connector (A) E122 termi- nal 41 and hood switch connector (B) E8 terminal 1.
4. Check continuity between IPDM E/R connector (A) E122 termi- nal 41 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK HOOD SWITCH GROUND CIRCUIT
Check continuity between hood switch connector E8 terminal 2 and ground. When hood is open : HOOD SW ON
When hood is closed : HOOD SW OFF
Connector
Te r m i n a l
Condition of
hood Voltage (V)
(Approx.)
(+) (-)
E122 41Ground Open
0
Closed Battery voltage
WIIA0601E
Te r m i n a l s Continuity
IPDM E/R
Connector Te r m i n a l
Hood switch
connector Te r m i n a l
E122 41E81Yes
IPDM E/R Connector Terminals Continuity
E122 41 Ground No
ALKIA1785ZZ
Revision: March 2010 2008 QX56