Nissan Pathfinder (2012 year). Instruction — part 144
U1010 CONTROL UNIT (CAN)
DLK-47
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
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DLK
N
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U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000007355402
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000007355403
1.
REPLACE BCM
When DTC [U1010] is detected, replace BCM. Refer to
BCS-53, "Removal and Installation"
.
>> Replace BCM.
Special Repair Requirement
INFOID:0000000007355404
1.
REQUIRED WORK WHEN REPLACING BCM
The BCM must be initialized when replaced. Refer to (Body Control System) for BCM configuration.
Initialize NVIS by CONSULT. For the details of initialization, refer to CONSULT Immobilizer mode and follow
the on-screen instructions.
>> Work End.
DTC
CONSULT display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
2012 Pathfinder
DLK-48
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INSTRUMENT PANEL AREA ANTENNA
INSTRUMENT PANEL AREA ANTENNA
Description
INFOID:0000000007355405
Detects whether Intelligent Key is inside the vehicle.
Component Function Check
INFOID:0000000007355406
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT
1. Check “ANTENNA” in “Active Test” mode with CONSULT.
2. Touch “ROOM ANT1”.
3. When Intelligent Key is inside instrument panel area antenna detection area, hazard lamps flash.
Is the inspection result normal?
YES
>> Instrument panel area antenna is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007355407
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
Regarding Wiring Diagram information, refer to
.
1.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES
>> Instrument panel area antenna is OK.
NO
>> GO TO 2
2.
CHECK INSIDE KEY ANTENNA
Test Item
Condition
Possible cause
ROOM ANT1
An excessive high or low voltage from inside
antenna is sent to the Intelligent Key Unit
• Instrument panel area antenna
• Between Intelligent Key unit and instrument panel area
antenna
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
15
Ground
Ignition
switch is
pushed.
ALKIA0585ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
INSTRUMENT PANEL AREA ANTENNA
DLK-49
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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DLK
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1. Disconnect Intelligent Key unit connector and instrument panel area antenna connectors.
2. Check continuity between Intelligent Key unit harness connector (A) M164 terminals 15, 16 and instru-
ment panel area antenna harness connector (B) M68 terminals 1, 2.
3. Check continuity between Intelligent Key unit harness connector
(A) M164 terminals 15, 16 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness between Intelligent Key unit and instrument panel area antenna.
3.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Replace instrument panel area antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground
with oscilloscope.
Is the inspection result normal?
YES
>> Replace instrument panel area antenna.
NO
>> Replace Intelligent Key unit. Refer to
SEC-114, "Removal and Installation"
Intelligent Key
unit connector
Terminals
Instrument panel
area antenna con-
nector
Terminals
Continuity
A: M164
15
B: M68
1
Yes
16
2
Item
Connector
Terminals
Continuity
Intelligent Key
unit
A: M164
15
Ground
No
16
ALKIA0586ZZ
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
15
Ground
Ignition
switch is
pushed.
ALKIA0585ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
DLK-50
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
CENTER CONSOLE AREA ANTENNA
CENTER CONSOLE AREA ANTENNA
Description
INFOID:0000000007355408
Detects whether Intelligent Key is inside the vehicle.
Component Function Check
INFOID:0000000007355409
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT
1. Check “ANTENNA” in “Active Test” mode with CONSULT.
2. Touch “ROOM ANT2”.
3. When Intelligent Key is inside center console area antenna detection area, hazard lamps flash.
Is the inspection result normal?
YES
>> Center console area antenna is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007355410
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
Regarding Wiring Diagram information, refer to
.
1.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES
>> Center console area antenna is OK.
NO
>> GO TO 2
2.
CHECK INSIDE KEY ANTENNA
Test Item
Condition
Possible cause
ROOM ANT2
An excessive high or low voltage from inside
antenna is sent to the Intelligent Key unit
• Center console area antenna
• Between Intelligent Key unit and center console area an-
tenna
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
13
Ground
Ignition
switch is
pushed.
ALKIA0583ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
CENTER CONSOLE AREA ANTENNA
DLK-51
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
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1. Disconnect Intelligent Key unit connector and center console area antenna connectors.
2. Check continuity between Intelligent Key unit harness connector (A) M164 terminals 13, 14 and center
console area antenna harness connector (B) M212 terminals 1, 2.
3. Check continuity between Intelligent Key unit harness connector
(A) M164 terminals 13, 14 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness between Intelligent Key unit and center console area antenna.
3.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Replace center console area antenna (New antenna or other antenna).
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground
with oscilloscope.
Is the inspection result normal?
YES
>> Replace center console area antenna.
NO
>> Replace Intelligent Key unit. Refer to
SEC-114, "Removal and Installation"
Intelligent Key
unit connector
Terminals
Center console area
antenna connector
Terminals
Continuity
A: M164
13
B: M212
1
Yes
14
2
Item
Connector
Terminals
Continuity
Intelligent Key
unit
A: M164
13
Ground
No
14
ALKIA0584ZZ
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
13
Ground
Ignition
switch is
pushed.
ALKIA0583ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
DLK-52
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
LUGGAGE AREA ANTENNA
LUGGAGE AREA ANTENNA
Description
INFOID:0000000007355411
Detects whether Intelligent Key is inside the vehicle.
Component Function Check
INFOID:0000000007355412
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT
1. Check “ANTENNA” in “Active Test” mode with CONSULT.
2. Touch “ROOM ANT2”.
3. When Intelligent Key is inside luggage area antenna detection area, hazard lamps flash.
Is the inspection result normal?
YES
>> luggage area antenna is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007355413
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
Regarding Wiring Diagram information, refer to
.
1.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES
>> Luggage area antenna is OK.
NO
>> GO TO 2
2.
CHECK INSIDE KEY ANTENNA
Test Item
Condition
Possible cause
ROOM ANT2
An excessive high or low voltage from inside
antenna is sent to the Intelligent Key Unit
• Luggage area antenna
• Between Intelligent Key unit and luggage area antenna
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
33
Ground
Ignition
switch is
pushed.
ALKIA0589ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
LUGGAGE AREA ANTENNA
DLK-53
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
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F
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DLK
N
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1. Disconnect Intelligent Key unit connector and luggage area antenna connectors.
2. Check continuity between Intelligent Key unit harness connector (A) M164 terminals 33, 34 and luggage
area antenna harness connector (B) B129 terminals 1, 2.
3. Check continuity between Intelligent Key unit harness connector
(A) M164 terminals 33, 34 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness between Intelligent Key unit and luggage area antenna.
3.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Replace luggage area antenna (New antenna or other antenna).
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground
with oscilloscope.
Is the inspection result normal?
YES
>> Replace luggage area antenna.
NO
>> Replace Intelligent Key unit. Refer to
SEC-114, "Removal and Installation"
Intelligent Key
unit connector
Terminals
Luggage area an-
tenna connector
Terminals
Continuity
A: M164
33
B: B129
1
Yes
34
2
Item
Connector
Terminals
Continuity
Intelligent Key
unit
A: M164
33
Ground
No
34
ALKIA0590ZZ
Connector
Item
Terminals
Condition
Signal (V)
(Reference value)
(+)
(–)
M164
Intelligent
Key unit
33
Ground
Ignition
switch is
pushed.
ALKIA0589ZZ
PIIB7441E
August 2012
2012 Pathfinder
2012 Pathfinder
DLK-54
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT : Diagnosis Procedure
INFOID:0000000007355414
Regarding Wiring Diagram information, refer to
.
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
M164 terminals 6, 11 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace Intelligent Key power supply circuit.
2.
CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector
M164 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 (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000007818270
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?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
Connector
Terminals
Ignition switch position
M164
(+)
(–)
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
21 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
August 2012
2012 Pathfinder
2012 Pathfinder
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