Nissan Xterra. Instruction — part 195
DLK-22
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000010246239
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
21 (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
POWER SUPPLY AND GROUND CIRCUIT
DLK-23
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
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
DLK-24
< DTC/CIRCUIT DIAGNOSIS >
DOOR SWITCH
DOOR SWITCH
Description
INFOID:0000000009485025
Detects door open/close condition.
Component Function Check
INFOID:0000000009485026
1.
CHECK FUNCTION
With CONSULT
Check door switches in data monitor mode with CONSULT.
Is the inspection result normal?
YES
>> Door switch is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009485027
Regarding Wiring Diagram information, refer to
.
1.
CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW") in DATA MONITOR mode with CONSULT.
• When doors are open:
• When doors are closed:
Without CONSULT
Check voltage between BCM connector M18 or M19 terminals 12, 13, 43, 47, 48 and ground.
Monitor item
Condition
DOOR SW-DR
CLOSE
→ OPEN: OFF → ON
DOOR SW-AS
DOOR SW-RL
DOOR SW-RR
BACK DOOR SW
DOOR SW-DR
:ON
DOOR SW-AS
:ON
DOOR SW-RL
:ON
DOOR SW-RR
:ON
BACK DOOR SW
:ON
DOOR SW-DR
:OFF
DOOR SW-AS
:OFF
DOOR SW-RL
:OFF
DOOR SW-RR
:OFF
BACK DOOR SW
:OFF
DOOR SWITCH
DLK-25
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> Door switch circuit is OK.
NO
>> GO TO 2
2.
CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between BCM connector M18, M19 terminals 12, 13, 43, 47, 48 and door switch connec-
tor B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door latch connec-
tor D502 terminal 3.
4. Check continuity between door switch connector B8 (Front LH),
B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or
back door latch connector D502 terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3 (front and rear door).
YES
>> GO TO 4 (back door).
NO
>> Repair or replace harness.
3.
CHECK FRONT AND REAR DOOR SWITCHES
Check continuity between door switch terminal 2 and exposed metal of switch while pressing and releasing
switch.
Is the inspection result normal?
YES
>> Door switch circuit is OK.
NO
>> Replace door switch.
Connec-
tor
Item
Terminals
Condition
Voltage (V)
(Approx.)
( + )
( – )
M19
Back door
switch/latch
43
Ground
Open
↓
Closed
0
↓
Battery voltage
Front door
switch LH
47
Rear door
switch LH
48
M18
Front door
switch RH
12
Rear door
switch RH
13
LIIA1041E
2 - 47
:Continuity should exist
2 - 12
:Continuity should exist
2 - 48
:Continuity should exist
2 - 13
:Continuity should exist
3 - 43
:Continuity should exist
2 - Ground
:Continuity should not exist
3 - Ground
:Continuity should not exist
WIIA0690E
Switch
Terminals
Condition
Continuity
Door switch
(front and rear)
2 – Ground
Released
Yes
Pressed
No
WIIA0644E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст