Nissan Pathfinder. Manual — part 1057
B2190 NATS ANTENNA AMP.
SEC-91
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK NATS ANTENNA AMP INPUT SIGNAL 1
1. Turn ignition switch ON.
2. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-80, "Removal and Installation"
NO
>> Replace NATS antenna amp. Refer to
SEC-144, "Removal and Installation"
.
BCM
Ground
Continuity
Connector
Terminal
M80
126
No
127
(+)
(–)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M80
126, 127
Ground
When Intelligent Key is in the
antenna detection area
When Intelligent Key is not in
the antenna detection area
JMKIA3839GB
JMKIA5951GB
SEC-92
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2191, P1615 DIFFERENCE OF KEY
B2191, P1615 DIFFERENCE OF KEY
Description
INFOID:0000000009175998
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits starting of the engine when an unregistered ID of Intelligent Key is used.
DTC Logic
INFOID:0000000009175999
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Place the back side of the Intelligent Key up to the push-button ignition switch.
2. Press the push-button ignition switch.
3. Check “Self-Diagnostic Result” with CONSULT.
Is DTC detected?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009176000
1.
PERFORM INITIALIZATION
Perform initialization with CONSULT. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key, refer to CONSULT Immobilizer mode and follow the on-
screen instructions.
Can the system be initialized and can the engine be started with re-registered Intelligent Key?
YES
>> Intelligent Key was unregistered.
NO
>> Intelligent Key fob is malfunctioning.
• Replace Intelligent Key fob.
• Perform initialization again.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2191
DIFFERENCE OF
KEY
The ID verification results between BCM and Intel-
ligent Key are NG. The registration is necessary.
• Intelligent Key
P1615
B2192 ID DISCORD, IMMU-ECM
SEC-93
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B2192 ID DISCORD, IMMU-ECM
DTC Logic
INFOID:0000000009176001
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC in “Self-Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> GO TO
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009176002
1.
PERFORM INITIALIZATION
Perform initialization of BCM and reregistration of all Intelligent Keys using CONSULT. Refer to the CONSULT
Immobilizer mode and follow the on-screen instructions.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES
>> Inspection End.
NO
>> GO TO 2.
2.
CHECK SELF-DIAGNOSIS RESULT
1. Select “Self Diagnostic Result” mode of “BCM” using CONSULT.
2. Erase DTC.
3. Perform DTC CONFIRMATION PROCEDURE for DTC B2192. Refer to
Is DTC detected?
YES
>> GO TO 3.
NO
>> Inspection End.
3.
REPLACE BCM
1. Replace BCM. Refer to
BCS-80, "Removal and Installation"
.
2. Perform initialization of BCM and reregistration of all Intelligent Keys using CONSULT. Refer to the CON-
SULT Immobilizer mode and follow the on-screen instructions.
Can the system be initialized and can the engine be started with registered Intelligent Key?
YES
>> Inspection End.
NO
>> GO TO 4.
4.
REPLACE ECM
1. Replace ECM. Refer to
EC-466, "Removal and Installation"
2. Perform “ADDITIONAL SERVICE WHEN REPLACING ECM”. Refer to
>> Inspection End.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2192
ID DISCORD BCM-ECM
The ID verification results between
BCM and ECM are NG.
• Harness or connectors
(The CAN communication line is open
or shorted.)
• BCM
• ECM
SEC-94
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2193 CHAIN OF ECM-IMMU
B2193 CHAIN OF ECM-IMMU
DTC Logic
INFOID:0000000009176003
DTC DETECTION LOGIC
NOTE:
• If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC in “Self-Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009176004
NOTE:
• If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
.
1.
CHECK BCM POWER SUPPLY AND GROUND CIRCUIT.
Check BCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace the harness.
2.
CHECK ECM POWER SUPPLY AND GROUND CIRCUIT.
Check ECM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> Replace ECM. Refer to
EC-466, "Removal and Installation"
. GO TO 3.
NO
>> Repair or replace the harness.
3.
PERFORM DTC CONFIRMATION PROCEDURE.
Perform the DTC confirmation procedure. Refer to
Does the DTC return?
YES
>> Replace BCM. Refer to
BCS-80, "Removal and Installation"
NO
>> Inspection End.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2193
CHAIN OF BCM-ECM
Inactive communication between BCM
and ECM
• Harness or connectors
(The CAN communication line is open or
shorted.)
• ECM
• BCM
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