Nissan Pathfinder (2010 year). Manual — part 581
SEC-142
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
B2193, P1612 CHAIN OF ECM-IMMU
B2193, P1612 CHAIN OF ECM-IMMU
Description
INFOID:0000000005259064
BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with
ECM if ignition switch is turned ON and starts the engine if the ID is OK. ECM prevents the engine from start-
ing if the ID is not registered.
DTC Logic
INFOID:0000000005259065
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 “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Refer to
SEC-142, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005259066
1.
REPLACE BCM
1. Replace BCM. Refer to
BCS-59, "Removal and Installation"
.
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual”.
Does the engine start?
YES
>> BCM was malfunctioning.
NO
>> ECM is malfunctioning.
• Replace ECM.
• Perform ECM re-communicating function.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2193
CHAIN OF BCM-
ECM
Inactive communication between ECM and BCM
• Harness or connectors
(The CAN communication line is
open or short)
• BCM
• ECM
P1612
2010 Pathfinder
P1610 LOCK MODE
SEC-143
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
P1610 LOCK MODE
Description
INFOID:0000000005259067
When the starting operation is carried more than five times consecutively under the following conditions, NATS
will shift to the mode which prevents the engine from being started.
• Unregistered mechanical key is used.
• BCM or ECM's malfunctioning.
DTC Logic
INFOID:0000000005259068
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Refer to
SEC-143, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005259069
1.
CHECK ENGINE START FUNCTION
1. Perform the check for DTC except DTC P1610.
2. Use CONSULT-III to erase DTC after fixing.
3. Check that engine can start with registered mechanical key.
Does the engine start?
YES
>> Inspection End.
NO
>> GO TO 2
2.
CHECK INTERMITTENT INCIDENT
GI-37, "Intermittent Incident"
.
>> Inspection End.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1610
LOCK MODE
When the starting operation is carried out
five or more times consecutively under the
following conditions.
• Unregistered mechanical key
• BCM or ECM's malfunctioning.
—
2010 Pathfinder
SEC-144
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000005520621
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.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
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
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
18 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
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
2010 Pathfinder
POWER SUPPLY AND GROUND CIRCUIT
SEC-145
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
2010 Pathfinder
SEC-146
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
KEY CYLINDER SWITCH
KEY CYLINDER SWITCH
Description
INFOID:0000000005259071
The main power window and door lock/unlock switch detects condition of the door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
INFOID:0000000005259072
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check "KEY CYL LK-SW" AND "KEY CYL UN-SW" in DATA MONITOR mode for “POWER DOOR LOCK
SYSTEM” with CONSULT-III.
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Refer to
SEC-146, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000005259073
Regarding Wiring Diagram information, refer to
SEC-166, "Wiring Diagram - VEHICLE SECURITY SYSTEM"
.
1.
CHECK DOOR KEY CYLINDER SWITCH LH
With CONSULT-III
Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode with CONSULT–III.
• When key inserted in left front key cylinder is turned to LOCK:
• When key inserted in left front key cylinder is turned to UNLOCK:
Without CONSULT-III
1. Turn ignition switch OFF.
2. Check voltage between main power window and door lock/
unlock switch connector D7 terminals 4, 6 and ground.
Is the inspection result normal?
Monitor item
Condition
KEY CYL LK-SW
Lock
: ON
Neutral / Unlock
: OFF
KEY CYL UN-SW
Unlock
: ON
Neutral / Lock
: OFF
KEY CYL LK-SW
: ON
KEY CYL UN-SW
: ON
Connector
Terminals
Condition of left front key cylinder
Voltage (V)
(Approx.)
(+)
(–)
D7
4
Ground
Neutral/Unlock
5
Lock
0
6
Neutral/Lock
5
Unlock
0
LIIA0566E
2010 Pathfinder
KEY CYLINDER SWITCH
SEC-147
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
YES
>> Key cylinder switch signal is OK.
NO
>> GO TO 2
2.
CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly LH (key cylinder switch).
3. Check continuity between front door lock assembly LH (key cyl-
inder switch) connector D14 terminal 4 and body ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK DOOR KEY CYLINDER SWITCH LH
Check continuity between front door lock assembly LH (key cylinder
switch) terminals.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace front door lock assembly LH (key cylinder switch). Refer to
4.
CHECK DOOR KEY CYLINDER HARNESS
Check continuity between main power window and door lock/unlock switch connector D7 (
A) terminals 4, 6 and front door lock assembly LH (key cylinder
switch) connector D14 (B) terminals 3, 5 and body ground.
Is the inspection result normal?
YES
>> Replace main power window and door lock/unlock switch.
NO
>> Repair or replace harness.
Connector
Terminals
Continuity
D14
4 – Ground
Yes
ALKIA1186ZZ
Terminals
Condition
Continuity
3 – 4
Key is turned to LOCK or neutral.
No
Key is turned to UNLOCK.
Yes
4 – 5
Key is turned to UNLOCK or neutral.
No
Key is turned to LOCK.
Yes
ALKIA1183ZZ
Connector
Terminals
Connector
Terminals
Continuity
A: Main
power win-
dow and
door lock/
unlock
switch
4
B: Front
door lock
assembly
LH (key
cylinder
switch)
5
Yes
6
3
Yes
4, 6
Ground
No
ALKIA1184ZZ
2010 Pathfinder
SEC-148
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
GLASS HATCH AJAR SWITCH
GLASS HATCH AJAR SWITCH
Description
INFOID:0000000005259074
Detects glass hatch open/close condition.
Component Function Check
INFOID:0000000005259075
1.
CHECK FUNCTION
With CONSULT-III
Check glass hatch switch in data monitor mode with CONSULT-III.
Is the inspection result normal?
YES
>> Glass hatch switch is OK.
NO
>> Refer to
SEC-148, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000005259076
Regarding Wiring Diagram information, refer to
SEC-166, "Wiring Diagram - VEHICLE SECURITY SYSTEM"
.
1.
CHECK GLASS HATCH AJAR SWITCH INPUT SIGNAL
With CONSULT-III
Check glass hatch ajar switch "GLASS HATCH SW" in DATA MONITOR mode with CONSULT–III.
• When glass hatch is open:
• When glass hatch is closed:
Without CONSULT-III
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M19 terminals 42 and ground.
Is the inspection result normal?
YES
>> Glass hatch ajar switch circuit is OK.
NO
>> GO TO 2
2.
CHECK GLASS HATCH AJAR SWITCH CIRCUIT
1. Disconnect glass hatch ajar switch and BCM.
2. Check continuity between BCM connector M19 (A) terminal 42 and glass hatch ajar switch connector
D503 (B) terminal 1.
Monitor item
Condition
GLASS HATCH SW
CLOSE
→
OPEN: OFF
→
ON
GLASS HATCH SW
:ON
GLASS HATCH SW
:OFF
Connector
Item
Terminals
Condition
Voltage (V)
(Approx.)
( + )
( – )
M19
BCM
42
Ground
Open
↓
Closed
0
↓
Battery voltage
ALKIA1708ZZ
2010 Pathfinder
GLASS HATCH AJAR SWITCH
SEC-149
< COMPONENT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
3. Check continuity between BCM connector M19 (A) terminal 42
and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GLASS HATCH AJAR SWITCH
Check continuity between glass hatch ajar switch connector terminal 1 and ground.
Is the inspection result normal?
YES
>> Refer to
GI-37, "Intermittent Incident"
.
NO
>> Replace glass hatch ajar switch.
42 - 1
:Continuity should exist
42 - Ground
:Continuity should not exist
ALKIA1709ZZ
Terminals
Condition
Continuity
Glass hatch ajar
switch
1 – Ground
Open
Yes
Closed
No
ALKIA0668ZZ
2010 Pathfinder
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