Infiniti QX56 (JA60). Manual — part 850
SEC-46
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
P1614 CHAIN OF IMMU-KEY
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
. 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-59, "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
Terminals
Position of ignition key cylinder
Voltage (V)
(Approx.)
( + )
( - )
2
Ground
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
P1614 CHAIN OF IMMU-KEY
SEC-47
< 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-59, "Removal and Installation"
. Perform initializa-
tion with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual”.
LIIA1282E
Terminals
Position of ignition key cylinder
Voltage (V)
(Approx.)
( + )
( - )
4
Ground
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
SEC-48
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
P1615 DIFFRENCE OF KEY
P1615 DIFFRENCE OF KEY
Description
INFOID:0000000005197375
Performs ID verification through BCM when ignition knob switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of mechanical key is used.
DTC Logic
INFOID:0000000005197376
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Insert mechanical key into the key cylinder.
2. Press the ignition knob switch.
3. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005197377
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 the engine be started with re-registered mechanical key?
YES
>> Mechanical key was unregistered.
NO
>> BCM is malfunctioning.
• Replace BCM. Refer to
BCS-59, "Removal and Installation"
.
• Perform initialization again
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1615
DIFFERENCE OF
KEY
The ID verification results between BCM and me-
chanical key are NG. The registration is necessary.
Mechanical key
POWER SUPPLY AND GROUND CIRCUIT
SEC-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 Procedure
INFOID:0000000005147118
Regarding Wiring Diagram information, refer to
SEC-94, "Wiring Diagram - INTELLIGENT KEY SYSTEM/
.
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 Procedure
INFOID:0000000005282706
Regarding Wiring Diagram information, refer to
.
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 name
Fuses 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)
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