Nissan Frontier. Manual — part 100
BCS
COMBINATION SWITCH INPUT CIRCUIT
BCS-29
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH INPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009479211
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 COMBINATION SWITCH
Check combination switch. Refer to
Is the check result normal?
YES
>> Replace BCM. Refer to
BCS-49, "Removal and Installation"
NO
>> Replace combination switch (applicable parts). Refer to
EXL-147, "Removal and Installation"
Special Repair Requirement
INFOID:0000000009479212
1.
ADDITIONAL SERVICE WHEN REPLACING BCM
>> Refer to
BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Descrip-
.
System
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M18
(A)
36
M28
(B)
1
Yes
INPUT 2
35
2
INPUT 3
34
3
INPUT 4
33
4
INPUT 5
32
5
ALMIA0278ZZ
System
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M18
36
No
INPUT 2
35
INPUT 3
34
INPUT 4
33
INPUT 5
32
ALMIA0279ZZ
BCS-30
< DTC/CIRCUIT DIAGNOSIS >
COMBINATION SWITCH OUTPUT CIRCUIT
COMBINATION SWITCH OUTPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009479213
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 BCM INPUT 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
OUTPUT 1
M18
(A)
6
M28
(B)
6
Yes
OUTPUT 2
5
7
OUTPUT 3
4
10
OUTPUT 4
3
9
OUTPUT 5
2
8
ALMIA0275ZZ
System
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M18
6
No
OUTPUT 2
5
OUTPUT 3
4
OUTPUT 4
3
OUTPUT 5
2
ALMIA0276ZZ
ALMIA0277ZZ
BCS
COMBINATION SWITCH OUTPUT CIRCUIT
BCS-31
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the measurement value normal?
YES
>> GO TO 4
NO
>> Replace BCM. Refer to
BCS-49, "Removal and Installation"
4.
CHECK COMBINATION SWITCH
Check combination switch. Refer to
Is the check result normal?
YES
>> Replace BCM. Refer to
BCS-49, "Removal and Installation"
NO
>> Replace the combination switch (applicable parts). Refer to
EXL-147, "Removal and Installation"
Special Repair Requirement
INFOID:0000000009479214
1.
ADDITIONAL SERVICE WHEN REPLACING BCM
>> Refer to
BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Descrip-
.
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-32
< ECU DIAGNOSIS INFORMATION >
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS INFORMATION
BCM (BODY CONTROL MODULE)
Reference Value
INFOID:0000000009479215
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.
• Activate and display TPMS transmitter IDs
• Display tire pressure reported by the TPMS transmitter
• Read TPMS DTCs
• Register TPMS transmitter IDs
• Test remote keyless entry keyfob relative signal strength
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition
Value/Status
ACC ON SW
Ignition switch OFF or ON
Off
Ignition switch ACC
On
AIR COND SW
A/C switch OFF
Off
A/C switch ON
On
AIR PRESS FL
Front left tire air pressure value
kPa, kg/cm
2
, psi
AIR PRESS FR
Front right tire air pressure value
kPa, kg/cm
2
, psi
AIR PRESS RL
Rear left tire air pressure value
kPa, kg/cm
2
, psi
AIR PRESS RR
Rear right tire air pressure value
kPa, kg/cm
2
, psi
AUTO LIGHT SW
Lighting switch OFF
Off
Lighting switch AUTO
On
BRAKE SW
Brake pedal released
Off
Brake pedal applied
On
BUCKLE SW
Seat belt buckle unfastened
Off
Seat belt buckle fastened
On
BUZZER
Buzzer in combination meter OFF
Off
Buzzer in combination meter ON
On
CARGO LAMP SW
Cargo lamp switch OFF
Off
Cargo lamp switch ON
On
CDL LOCK SW
Door lock/unlock switch does not operate
Off
Press door lock/unlock switch to the LOCK side
On
CDL UNLOCK SW
Door lock/unlock switch does not operate
Off
Press door lock/unlock switch to the UNLOCK side
On
DOOR SW-AS
Front door RH closed
Off
Front door RH opened
On
DOOR SW-DR
Front door LH closed
Off
Front door LH opened
On
DOOR SW-RL
Rear door LH closed
Off
Rear door LH opened
On
DOOR SW-RR
Rear door RH closed
Off
Rear door RH opened
On
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