Infiniti G37 Coupe. Manual — part 796
INL-18
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
ACTIVE TEST
*: Each lamp switch is in ON position.
Monitor item
[Unit]
Description
REQ SW-DR
[On/Off]
The switch status input from request switch (driver side)
REQ SW-AS
[On/Off]
The switch status input from front request switch (passenger side)
REQ SW-RR
[On/Off]
NOTE:
The item is indicated, but not monitored.
REQ SW-RL
[On/Off]
PUSH SW
[On/Off]
The switch status input from push-button ignition switch
ACC RLY-F/B
[On/Off]
ACC relay feedback signal status input from ACC relay
KEY SW-SLOT
[On/Off]
Key switch status input from key slot
UNLK SEN-DR
[On/Off]
Driver door unlock status input from unlock sensor
DOOR SW-DR
[On/Off]
The switch status input driver side front door switch
DOOR SW-AS
[On/Off]
The switch status input from passenger side door switch
DOOR SW-RR
[On/Off]
NOTE:
The item is indicated, but not monitored.
DOOR SW- RL
[On/Off]
NOTE:
The item is indicated, but not monitored.
DOOR SW-BK
[On/Off]
NOTE:
The item is indicated, but not monitored.
CDL LOCK SW
[On/Off]
Lock switch status received from the door lock and unlock switch by power window
switch serial link
CDL UNLOCK SW
[On/Off]
Unlock switch status received from the door lock and unlock switch by power window
switch serial link
KEY CYL LK-SW
[On/Off]
Lock switch status received from key cylinder switch by power window switch serial
link
KEY CYL UN-SW
[On/Off]
Unlock switch status received from key cylinder switch by power window switch serial
link
TRNK/HAT MNTR
[On/Off]
The switch status input from trunk room lamp switch
RKE-LOCK
[On/Off]
Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off]
Unlock signal status received from remote keyless entry receiver
Test item
Operation
Description
BATTERY SAVER
Off
Cuts the interior room lamp power supply to turn interior room lamp OFF.
On
Outputs the interior room lamp power supply to turn interior room lamp ON.*
POWER SUPPLY AND GROUND CIRCUIT
INL-19
< COMPONENT DIAGNOSIS >
C
D
E
F
G
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A
B
INL
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COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000001830717
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Fuse and fusible link No.
Battery power supply
K
10
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M118
1
Battery voltage
M119
11
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
INL-20
< COMPONENT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Description
INFOID:0000000001604827
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver activating.
Component Function Check
INFOID:0000000001604828
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT-III ACTIVE TEST
1.
Turn ignition switch ON.
2.
Turn each interior room lamp ON.
-
Map lamp
-
Step lamp
-
Vanity mirror lamp
-
Trunk room lamp
3.
Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF.
Does the interior room lamp turn ON/OFF?
YES
>> Interior room lamp power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001604829
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT-III ACTIVE TEST
1.
Turn ignition switch ON.
2.
Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
3.
With operating the test item, check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 2.
NO
>> Replace BCM.
2.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the following connectors.
-
Map lamp
-
Vanity mirror lamp (LH)
-
Vanity mirror lamp (RH)
-
Trunk room lamp
-
Step lamp (driver side)
-
Step lamp (passenger side)
3.
Check continuity between BCM harness connector and each interior room lamp harness connector.
Off
: Interior room lamp OFF
On
: Interior room lamp ON
Terminals
Test item
Voltage (Ap-
prox.)
(+)
(-)
BCM
Ground
BATTERY
SAVER
Connector
Terminal
M119
4
Off
0 V
On
Battery volt-
age
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-21
< COMPONENT DIAGNOSIS >
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INL
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Does continuity exist?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Check that each interior room lamp has no internal short circuit.
BCM
Each interior room lamp
Continu-
ity
Connec-
tor
Terminal
Connector
Terminal
M119
4
Map lamp
R15
1
Existed
Vanity mirror lamp
(LH)
R12
2
Vanity mirror lamp
(RH)
R13
2
Trunk room lamp
B47
1
Step lamp (driver
side)
D12
1
Step lamp (pas-
senger side)
D42
1
BCM
Ground
Continuity
Connector
Terminal
M119
4
Not existed
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