Infiniti QX56 (JA60). Manual — part 785
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DIAGNOSIS SYSTEM (BCM)
RF-9
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)
INFOID:0000000005370296
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
Monitor Item
[Unit]
Description
IGN ON SW [ON/OFF]
Indicates condition of ignition switch.
DOOR SW-DR [ON/OFF]
Indicates condition of front door switch LH.
DOOR SW-AS [ON/OFF]
Indicates condition of front door switch RH.
Test Item
Description
RETAINED PWR
This test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-III screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-III can be operated with ignition switch in OFF position. “RETAINED
PWR” should be turned “ON” or “OFF” on CONSULT-III screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-III might be stuck if “RE-
TAINED PWR” is turned “ON” or “OFF” on CONSULT-III screen when ignition switch is OFF.
Work item
Description
RETAINED PWR SET
RAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power
supply period between three steps
• MODE1 (45 sec.)/MODE2 (OFF)/MODE 3 (2 min.).
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RF-10
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
SUNROOF MOTOR ASSEMBLY
SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure
INFOID:0000000005147278
Regarding Wiring Diagram information, refer to
SUNROOF MOTOR ASSEMBLY
1.
CHECK SUNROOF MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector R4.
3. Turn ignition switch ON.
4. Check voltage between sunroof motor assembly connector R4
terminals 1 and 5 and ground.
Is the voltage as specified?
YES
>> GO TO 4
NO
>> GO TO 2
2.
CHECK SUNROOF MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect BCM connector M20.
3. Check continuity between BCM connector M20 (A) and sunroof
motor assembly connector R4 (B).
4. Check continuity between BCM connector M20 (A) and ground.
Are the continuity test results as specified?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK BCM OUTPUT SIGNAL
(+)
(–)
Voltage
Connector
Terminal
R4
1
Ground
Battery voltage
5
ALKIA0868ZZ
A
B
Continuity
Connector
Terminal
Connector
Terminal
M20
68
R4
1
Yes
69
5
A
—
Continuity
Connector
Terminal
M20
68
Ground
No
69
ALKIA0870ZZ
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POWER SUPPLY AND GROUND CIRCUIT
RF-11
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
RF
N
O
P
1. Connect BCM connector M20.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 and ground.
Is the voltage reading as specified?
YES
>> Check condition of harness and connector.
NO
>> Replace BCM. Refer to
BCS-59, "Removal and Installation"
4.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sunroof motor assembly connector
R4 terminal 7 and ground.
Is the continuity test result as specified?
YES
>> Power supply and ground circuits are OK.
NO
>> Repair or replace harness.
SUNROOF MOTOR ASSEMBLY : Special Repair Requirement
INFOID:0000000005147279
1.
PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Refer to
RF-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
.
Does the sunroof motor assembly operate properly?
YES
>> Repair is complete.
NO
>> Check fitting adjustment.
(+)
(–)
Voltage
Connector
Terminal
M20
68
Ground
Battery voltage
69
ALKIA0871ZZ
Connector
Terminal
—
Continuity
R4
7
Ground
Yes
ALKIA0869ZZ
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RF-12
< COMPONENT DIAGNOSIS >
SUNROOF SWITCH CIRCUIT
SUNROOF SWITCH CIRCUIT
Description
INFOID:0000000005147280
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:0000000005147281
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
Diagnosis Procedure
INFOID:0000000005147282
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
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