Nissan Titan. Instruction — part 492
RF-12
< DTC/CIRCUIT DIAGNOSIS >
SUNROOF SWITCH CIRCUIT
SUNROOF SWITCH CIRCUIT
Description
INFOID:0000000009879056
The BCM supplies power to the integrated CPU of the sunroof motor assembly. The tilt and slide functions of
the sunroof motor assembly is controlled by the sunroof switch.
Component Function Check
INFOID:0000000009879057
1.
CHECK SUNROOF MOTOR FUNCTION
Do tilt up/down & slide open/close functions operate normally with sunroof switch?
Is the inspection result normal?
YES
>> Sunroof motor assembly is OK.
NO
>> Refer to
RF-10, "SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000009879058
Regarding Wiring Diagram information, refer to
1.
CHECK SUNROOF SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between sunroof switch connector and ground.
Are the voltage measurements as specified?
YES
>> Sunroof switch is operating normally.
NO
>> GO TO 2
2.
CHECK SUNROOF SWITCH CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector R4 and sunroof
switch connector R104.
3. Check continuity between sunroof switch connector R104 (A)
and sunroof motor assembly connector R4 (B).
Connector
Terminals
Sunroof switch position
Voltage (V)
(Approx.)
(+)
(–)
R104
1
2
SLIDE CLOSE
0V
Other than above
Battery voltage
3
SLIDE OPEN
0V
Other than above
Battery voltage
4
TILT UP
0V
Other than above
Battery voltage
6
TILT DOWN
0V
Other than above
Battery voltage
ALKIA1041GB
ALKIA0873ZZ
SUNROOF SWITCH CIRCUIT
RF-13
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
4. Check continuity between sunroof switch connector R104 (A) and ground.
Are the continuity test results as specified?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK SUNROOF SWITCH
1. Check continuity between sunroof switch terminals.
Are the continuity test results as specified?
YES
>> Sunroof switch is operating normally.
NO
>> Replace sunroof switch (map lamp assembly). Refer to
INL-71, "Removal and Installation"
A
B
Continuity
Connector
Terminal
Connector
Terminal
R104
1
R4
3
Yes
2
8
3
9
4
4
6
10
A
—
Continuity
Connector
Terminal
R104
1
Ground
No
2
3
4
6
Terminals
Sunroof switch position
Continuity
1
2
SLIDE CLOSE
Yes
Other than above
No
3
SLIDE OPEN
Yes
Other than above
No
4
TILT UP
Yes
Other than above
No
6
TILT DOWN
Yes
Other than above
No
ALKIA0874ZZ
RF-14
< DTC/CIRCUIT DIAGNOSIS >
DOOR SWITCH
DOOR SWITCH
Description
INFOID:0000000009879059
Detects door open/close condition.
Component Function Check
INFOID:0000000009879060
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:0000000009879061
Regarding Wiring Diagram information, refer to
1.
CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT
Check door switches ("DOOR SW-DR" and "DOOR SW-AS") in DATA MONITOR mode with CONSULT. Refer
to
BCS-16, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"
.
• When doors are open:
• When doors are closed:
Without CONSULT
Check voltage between BCM connector M18 or M19 terminals 12, 47 and ground.
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.
Monitor item
Condition
DOOR SW-DR
CLOSE
→ OPEN: OFF → ON
DOOR SW-AS
DOOR SW-DR
:ON
DOOR SW-AS
:ON
DOOR SW-DR
:OFF
DOOR SW-AS
:OFF
Connector
Item
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
M19
Front door
switch LH
47
Ground
Open
↓
Closed
0
↓
Battery voltage
M18
Front door
switch RH
12
DOOR SWITCH
RF-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector B8 (Front LH), B108 (Front RH) terminal 2 and BCM
connector M18, M19 terminals 12, 47.
4. Check continuity between door switch connector B8 (Front LH), B108 (Front RH) terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK 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
>> Replace BCM. Refer to
BCS-52, "Removal and Installa-
.
NO
>> Replace front door switch.
B8 2 - 47
:Continuity should exist
B108 2 - 12
:Continuity should exist
2 - Ground
:Continuity should not exist
Terminals
Condition
Continuity
Door switch (front)
2 – Ground
Released
Yes
Pressed
No
WIIA0644E
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