Nissan Frontier D40. Instruction — part 55
BCS-30
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
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
BCS
COMBINATION SWITCH INPUT CIRCUIT
BCS-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH INPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000005275698
Regarding Wiring Diagram information, refer to
.
1.
CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect BCM and combination switch.
3.
Check continuity between BCM harness connector and combi-
nation switch harness connector.
Does continuity exist?
YES
>> GO TO 2
NO
>> Repair or replace harness.
2.
CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair or replace harness.
NO
>> GO TO 3
3.
CHECK BCM OUTPUT VOLTAGE
1.
Connect BCM.
2.
Turn ignition switch ON.
3.
Check voltage between BCM harness connector and ground.
System
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M18
(A)
6
M28
(B)
6
Yes
INPUT 2
5
7
INPUT 3
4
10
INPUT 4
3
9
INPUT 5
2
8
ALMIA0275ZZ
System
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M18
6
No
INPUT 2
5
INPUT 3
4
INPUT 4
3
INPUT 5
2
ALMIA0276ZZ
ALMIA0277ZZ
BCS-32
< COMPONENT DIAGNOSIS >
COMBINATION SWITCH INPUT CIRCUIT
Is the measurement value normal?
YES
>> GO TO 4
NO
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
4.
CHECK COMBINATION SWITCH
Check combination switch. Refer to
.
Is the check result normal?
YES
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
NO
>> Replace the combination switch (applicable parts). Refer to
EXL-148, "Removal and Installation"
Special Repair Requirement
INFOID:0000000005275699
1.
SAVING VEHICLE SPECIFICATION
Perform “READ CONFIGURATION” with CONSULT-III to save or print current vehicle specification.
>> GO TO 2
2.
REPLACE BCM
Replace BCM. Refer to
BCS-54, "Removal and Installation"
>> GO TO 3
3.
WRITING VEHICLE SPECIFICATION
Perform “WRITE CONFIGURATION - Config file” or “WRITE CONFIGURATION - Instruction selection” with
CONSULT-III to write vehicle specification. Refer to
BCS-4, "CONFIGURATION : Special Repair Require-
>> GO TO 4
4.
INITIALIZE BCM (NATS)
Perform BCM initialization. Refer to
BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT :
.
>> Work End.
System
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
INPUT 1
M18
6
Refer to
.
INPUT 2
5
INPUT 3
4
INPUT 4
3
INPUT 5
2
BCS
COMBINATION SWITCH OUTPUT CIRCUIT
BCS-33
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH OUTPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000005275700
Regarding Wiring Diagram information, refer to
.
1.
CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect BCM and combination switch.
3.
Check continuity between BCM harness connector and combi-
nation switch harness connector.
Does continuity exist?
YES
>> GO TO 2
NO
>> Repair or replace harness.
2.
CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair or replace harness.
NO
>> GO TO 3
3.
CHECK COMBINATION SWITCH
Check combination switch. Refer to
Is the check result normal?
YES
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
NO
>> Replace combination switch (applicable parts). Refer to
EXL-148, "Removal and Installation"
Special Repair Requirement
INFOID:0000000005275701
1.
SAVING VEHICLE SPECIFICATION
Perform “READ CONFIGURATION” with CONSULT-III to save or print current vehicle specification.
>> GO TO 2
System
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
OUTPUT 1
M18
(A)
36
M28
(B)
1
Yes
OUTPUT 2
35
2
OUTPUT 3
34
3
OUTPUT 4
33
4
OUTPUT 5
32
5
ALMIA0278ZZ
System
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M18
36
No
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
ALMIA0279ZZ
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