Nissan Sentra. Instruction — part 125
BCS-70
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
COMBINATION SWITCH OUTPUT CIRCUIT
COMBINATION SWITCH OUTPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009757346
Regarding Wiring Diagram information, refer to
.
1.
CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM connector and combination switch connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connectors.
2.
CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> Repair harness or connectors.
NO
>> GO TO 3.
3.
CHECK BCM INPUT SIGNAL
1. Connect BCM and combination switch connectors.
2. Turn ON any switch in the system that is malfunctioning.
3. Check voltage between BCM connector and ground.
Combination switch
signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
OUTPUT 1
M84
6
M28
12
Yes
OUTPUT 2
5
14
OUTPUT 3
4
5
OUTPUT 4
3
2
OUTPUT 5
2
8
Combination switch
signal
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M84
6
No
OUTPUT 2
5
OUTPUT 3
4
OUTPUT 4
3
OUTPUT 5
2
BCS
COMBINATION SWITCH OUTPUT CIRCUIT
BCS-71
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the inspection result normal?
Yes
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
No
>> Replace combination switch.
BCM signal
Terminals
Voltage
(+)
(
−)
BCM
Ground
Connector
Terminal
INPUT 1
M84
6
.
INPUT 2
5
INPUT 3
4
INPUT 4
3
INPUT 5
2
BCS-72
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
COMBINATION SWITCH SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
COMBINATION SWITCH SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000009757347
1. Perform the data monitor of CONSULT to check for any malfunctioning item.
2. Check the malfunction combinations.
Malfunction item:
×
3. Identify the malfunctioning part from the agreed combination and repair or replace the part.
Malfunction combination
Data monitor item
FR WI
PER HI
FR WIP
ER LOW
F
R
W
A
SH
ER
S
W
FR WI
PER INT
INT VOL
U
ME
TURN SIG
NAL R
TURN SIGNAL L
TA
IL
LA
MP
SW
H
I BEAM SW
HEAD LAMP SW
1
HEAD LAMP SW
2
P
ASSI
N
G
SW
AU
T
O
LI
GH
T
S
W
FR F
O
G
SW
A
×
×
×
×
B
×
×
×
×
C
×
×
×
D
×
×
×
E
×
×
F
×
×
G
×
×
H
×
×
×
I
×
×
×
×
J
×
×
×
×
K
All Items
L
If only one item is detected or the item is not applicable to the combinations A to K
Malfunction
combination
Malfunctioning part
Repair or replace
A
Combination switch INPUT 1 circuit
Inspect the combination switch input circuit applicable to the malfunctioning
part. Refer to
B
Combination switch INPUT 2 circuit
C
Combination switch INPUT 3 circuit
D
Combination switch INPUT 4 circuit
E
Combination switch INPUT 5 circuit
F
Combination switch OUTPUT 1 circuit
Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to
.
G
Combination switch OUTPUT 2 circuit
H
Combination switch OUTPUT 3 circuit
I
Combination switch OUTPUT 4 circuit
J
Combination switch OUTPUT 5 circuit
K
BCM
Replace BCM. Refer to
BCS-73, "Removal and Installation"
.
L
Combination switch
Replace the combination switch.
BCS
BCM
BCS-73
< REMOVAL AND INSTALLATION >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
REMOVAL AND INSTALLATION
BCM
Removal and Installation
INFOID:0000000009757348
NOTE:
Before replacing BCM, perform “READ CONFIGURATION” to save or print current vehicle specification. Refer
to
BCS-61, "CONFIGURATION (BCM) : Description"
.
REMOVAL
1. Disconnect the negative battery terminal. Refer to
PG-52, "Removal and Installation"
2. Remove instrument lower panel LH and instrument side finisher LH. Refer to
.
3. Remove fuse block (J/B) screws (A) and position (BCM) aside.
4. Remove harness clip (A).
5. Remove the screws (A) from the BCM (1).
6. Disconnect the harness connectors and remove the BCM.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Perform “CONFIGURATION (BCM)” when replacing BCM. Refer to
JMMIA1224ZZ
JMMIA1225ZZ
JMMIA1226ZZ
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