Infiniti QX56 (JA60). Manual — part 846
SEC-30
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2013 ID DISCORD I-KEY-STRG
2. Using an oscilloscope, check voltage between Intelligent Key
unit connector and ground.
Is the inspection result normal?
YES
>> Replace Steering lock solenoid.
NO
>> Replace Intelligent Key unit. Refer to
SEC-120, "Removal and Installation"
WIIA1205E
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
Intelligent Key
unit connector
Terminal
M70
32
Ground
Steering
lock
Ignition knob is pushed
LOCK status
5
LOCK
⇔ UNLOCK
For 15 seconds after
UNLOCK
5
15 seconds later UN-
LOCK
0
SIIA1911J
JMKIA0433ZZ
B2190 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
B2190 NATS ANTENNA AMP.
Description
INFOID:0000000005147093
Performs ID verification through BCM and NATS antenna amplifier 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:0000000005147094
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:0000000005147095
Regarding Wiring Diagram information, refer to
SEC-80, "Wiring Diagram - IVIS"
1.
CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to
SEC-120, "Removal and Installation"
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Reinstall NATS antenna amp. correctly.
2.
CHECK IVIS (NATS) IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.
Does the engine start?
YES
>> • Ignition key ID chip is malfunctioning.
• Replace the ignition key.
• Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual”.
NO
>> GO TO 3
3.
CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
1. Turn ignition switch ON.
2. Check voltage between NATS antenna amp. connector M21 terminal 1 and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2190
NATS ANTENNA
AMP.
• Inactive communication between NATS antenna
amp. and BCM.
• Mechanical key is malfunctioning.
• Harness or connectors
(The NATS antenna amp. circuit is
open or shorted)
• Mechanical key
• NATS antenna amp.
• BCM
SEC-32
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2190 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
. 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
B2190 NATS ANTENNA AMP.
SEC-33
< 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
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