Infiniti QX56 (Z62). Manual — part 831
INL-54
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000006216064
OVERALL SEQUENCE
DETAILED FLOW
1.
INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
JPLIA0313GB
DIAGNOSIS AND REPAIR WORKFLOW
INL-55
< BASIC INSPECTION >
C
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INL
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>> GO TO 2.
2.
SYMPTOM CHECK
Check the symptom from the customer's information.
>> GO TO 3.
3.
BASIC INSPECTION
Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.
>> GO TO 4.
4.
SELF-DIAGNOSIS WITH CONSULT-III
Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 6.
5.
TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
>> GO TO 9.
6.
FAIL-SAFE ACTIVATION CHECK
Check that the symptom is applied to the fail-safe activation.
Does the fail-safe activate?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
SYSTEM DIAGNOSIS
Perform the system diagnosis for the system that the fail-safe activates. Specify the malfunctioning part.
>> GO TO 9.
8.
SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
>> GO TO 9.
9.
MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 10.
10.
REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self-diagnosis with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 11.
11.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> INSPECTION END
NO
>> GO TO 3.
INL-56
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
DTC/CIRCUIT DIAGNOSIS
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Description
INFOID:0000000006216065
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver activating.
Component Function Check
INFOID:0000000006216066
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT-III ACTIVE TEST
1.
Turn ignition switch ON.
2.
Turn each interior room lamp ON.
-
Personal lamp
-
Map lamp
-
Foot lamp
-
Luggage room lamp
-
Automatic back door close switch illumination
-
Step lamp
-
Puddle lamp
-
Vanity mirror 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:0000000006216067
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT-III ACTIVE TEST
1.
Turn ignition switch OFF.
2.
Disconnect the following connectors.
-
Personal lamp
-
Map lamp
-
Foot lamp (both sides)
-
Luggage room lamp
-
Automatic back door close switch illumination
-
Step lamp (ALL)
-
Puddle lamp (both sides)
-
Vanity mirror lamp (both sides)
3.
Turn ignition switch ON.
4.
Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
5.
With operating the test item, check voltage between BCM harness connector and ground.
Is the inspection result normal?
Off
: Interior room lamp OFF
On
: Interior room lamp ON
BCM
(–)
Test item
Voltage
(Approx.)
(+)
Connector
Terminal
M70
56
Ground
BATTERY SAVER
Off
0 V
On
12 V
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-57
< DTC/CIRCUIT DIAGNOSIS >
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YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the BCM connector.
3.
Check continuity between BCM harness connector and each interior room lamp harness connector.
Is the inspection result normal?
YES
>> Check for internal short circuit of each interior room lamp.
NO
>> Repair or replace harnesses.
3.
CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the BCM connector.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M70
56
Personal lamp
R21
3
Existed
Map lamp
R18
8
Foot lamp
(driver side)
M89
1
Foot lamp
(passenger side)
M90
2
Luggage room lamp
B11
2
Automatic back door close switch
D158
3
Step lamp
(driver side)
D8
1
Step lamp
(passenger side)
D29
1
Step lamp
(Rear LH)
D66
1
Step lamp
(Rear RH)
D46
1
Puddle lamp
(driver side)
D3
2
Puddle lamp
(passenger side)
D23
2
Vanity mirror lamp (driver side)
R12
2
Vanity mirror lamp (passenger
side)
R13
2
Foot lamp
(Rear LH)
B479
65
Foot lamp
(Rear RH)
B480
65
BCM
Ground
Continuity
Connector
Terminal
M70
56
Not existed
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