Infiniti QX56 (Z62). Manual — part 1059
POWER SUPPLY AND GROUND CIRCUIT
RF-19
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
2.
Check continuity between sunroof motor assembly harness connector and ground.
Is the inspection result normal?
YES
>> Check BCM power supply and ground circuit. Refer to
.
NO
>> Repair or replace harness or connector.
BCM
Sunroof motor assembly
Continuity
Connector
Terminal
Connector
Terminal
M70
69
R4
6
Existed
Sunroof motor assembly
Ground
Continuity
Connector
Terminal
R4
6
Not existed
RF-20
< DTC/CIRCUIT DIAGNOSIS >
VEHICLE SPEED SIGNAL CIRCUIT
VEHICLE SPEED SIGNAL CIRCUIT
Component Function Check
INFOID:0000000006141233
1.
CHECK SUNROOF MOTOR FUNCTION
Check tilt up/down & slide open/close operations with sunroof switch.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check sunroof switch. Refer to
.
2.
CHECK SUNROOF MOTOR ASSEMBLY INPUT SIGNAL
1.
Start engine.
2.
Drive the vehicle at more than 40 km/h (25 MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
3.
Check tilt up/down & slide open/close operations with sunroof switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000006141234
SUNROOF MOTOR ASSEMBLY
1.
CHECK SUNROOF MOTOR ASSEMBLY INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect combination meter harness connector and sunroof motor assembly harness connector.
3.
Check continuity between combination meter harness connector and sunroof motor assembly harness
connector.
4.
Check continuity between sunroof motor assembly harness connector and ground.
Is the inspection result normal?
YES
>> Check combination meter. Refer to
.
NO
>> Repair or replace harness or connector.
Combination meter
Sunroof motor assembly
Continuity
Connector
Terminal
Connector
Terminal
M34
30
R4
8
Exists
Sunroof motor assembly
Ground
Continuity
Connector
Terminal
R4
8
Not existed
SUNROOF SWITCH
RF-21
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
SUNROOF SWITCH
Component Function Check
INFOID:0000000006141235
1.
CHECK SUNROOF MOTOR FUNCTION
Check tilt up/down & slide open/close operations with sunroof switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000006141236
1.
PERFORM INITIALIZATION PROCEDURE
1.
Initialization procedure is executed and operation is confirmed. Refer to
WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
2.
Check tilt up/down & slide open/close operations with sunroof switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK SUNROOF SWITCH GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sunroof switch harness connector.
3.
Check continuity between sunroof switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK SUNROOF SWITCH INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between sunroof switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK SUNROOF SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sunroof motor assembly harness connector.
3.
Check continuity between sunroof motor assembly harness connector and sunroof switch harness con-
nector.
Sunroof switch
Ground
Continuity
Connector
Terminal
R16
2
Existed
(+)
(
−
)
Voltage (V)
(Approx.)
sunroof switch
Connector
Terminal
R16
1
Ground
12
3
RF-22
< DTC/CIRCUIT DIAGNOSIS >
SUNROOF SWITCH
4.
Check continuity between sunroof motor assembly harness connector and ground.
Is the inspection result normal?
YES
>> Replace sunroof motor assembly. Refer to
RF-36, "Removal and Installation"
NO
>> Repair or replace harness or connector.
5.
CHECK SUNROOF SWITCH
Check sunroof switch.
Refer to
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
NO
>> Replace sunroof switch. Refer to
RF-41, "Removal and Installation"
Component Inspection
INFOID:0000000006141237
SUNROOF SWITCH
1.
CHECK SUNROOF SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect sunroof switch connector.
3.
Check continuity sunroof switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sunroof switch. Refer to
RF-41, "Removal and Installation"
Sunroof motor assembly
Sunroof switch
Continuity
Connector
Terminal
Connector
Terminal
R4
5
R16
1
Existed
10
3
Sunroof motor assembly
Ground
Continuity
Connector
Terminal
R4
5
Not existed
10
Terminals
Condition
Continuity
1
2
Sunroof switch is operated
TILT DOWN or SLIDE OPEN
Existed
Other than above
Not existed
3
Sunroof switch is operated
TILT UP or SLIDE CLOSE
Existed
Other than above
Not existed
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