2011 INFINITI QX56 Factory Service Manual

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Page 2769 of 5598

INFINITI QX56 2011 Factory Service Manual
DIAGNOSIS AND REPAIR WORKFLOWEXL-59
< BASIC INSPECTION > [XENON TYPE]
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EXL
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000006213922
OVERALL SEQUENC

Page 2770 of 5598

INFINITI QX56 2011 Factory Service Manual
EXL-60
< BASIC INSPECTION >[XENON TYPE]
DIAGNOSIS AND REPAIR WORKFLOW
>> GO TO 2.
2.SYMPTOM CHECK
Check the symptom from t he customers information.
>> GO TO 3.
3.BASIC INSPECTION
Check the operatio

Page 2771 of 5598

INFINITI QX56 2011 Factory Service Manual
INSPECTION AND ADJUSTMENTEXL-61
< BASIC INSPECTION > [XENON TYPE]
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLAC ING CONTROL UNIT (AFS CONTROL
UNIT)
ADDITI

Page 2772 of 5598

INFINITI QX56 2011 Factory Service Manual
EXL-62
< BASIC INSPECTION >[XENON TYPE]
INSPECTION AND ADJUSTMENT
If “CAN NOT BE TESTED” is indi
cated, AFS control unit detects that the height sensor signal
changes. The levelizer adjustment i

Page 2773 of 5598

INFINITI QX56 2011 Factory Service Manual
B2503, B2504 SWIVEL ACTUATOREXL-63
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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DTC/CIRCUIT DIAGNOSIS
B2503, B2504 SWIVEL ACTUATOR
DTC LogicINFOID:0000000006213929
DTC DET

B2503, B2504 SWIVEL ACTUATOREXL-63
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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DTC/CIRCUIT DIAGNOSIS
B2503, B2504 SWIVEL ACTUATOR
DTC LogicINFOID:0000000006213929
DTC DETECTION LOGIC
*: Initialization is not included.
DTC CONFIRMATION PROCEDURE
1.DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.CONFIRMATION DTC SELECTION
Select “B2503” or “B2504” for confirmation.
Which DTC is confirmation?
B2503 >> GO TO 3.
B2504 >> GO TO 4.
3.DTC CONFIRMATION (B2503)
1. Steer to the straight-forward position.
2. Start the engine.
3. Turn AFS switch ON.
4. Turn the headlamp ON.
5. Shift the selector lever to “N”.
6. Steer to the right. (Rotate it once or more.)
7. Perform the self-diagnosis with CONSULT-III.
Is DTC
“B2503” detected?
YES >> Refer to EXL-64, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
4.DTC CONFIRMATION (B2504)
1. Steer to the straight-forward position.
2. Start the engine.
3. Turn AFS switch ON.
4. Turn the headlamp ON.
5. Drive at 25 km/h (15.5 MPH) or more.
6. Steer to the left. (Rotate it once or more.)
DTC No. Trouble diagnosis name DTC detection condition Possible cause
B2503 Swivel actuator [RH] AFS control unit indicates an applicable DTC when detecting any of the following conditions continuous-
ly for 2 seconds or more.
AFS control unit-recognized swivel position differs extremely from the swivel position sensor-input
value while the swivel operating.
*
The swivel position sensor signal does not change even though AFS control unit transmits the swivel
motor driving signal while the swivel operating
*.
The swivel motor short and open is detected while
the swivel operating
*.
The swivel position sensor power supply is 6 V or more, or 4 V or less.
The swivel position sensor signal is 0.25 V or less, or 4.75 V or more. Swivel position sensor
Swivel position sensor
Harness and connector
AFS control unit
Swivel motor
Swivel motor
Harness and connector
AFS control unit
B2504 Swivel actuator [LH]
Revision: 2010 May2011 QX56

Page 2774 of 5598

INFINITI QX56 2011 Factory Service Manual
EXL-64
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2503, B2504 SWIVEL ACTUATOR
7. Stop the vehicle.
8. Perform the self-diagnosis with CONSULT-III.
Is DTC
“B2504” detected?
YES >> Refer to
EXL-64, "

Page 2775 of 5598

INFINITI QX56 2011 Factory Service Manual
B2503, B2504 SWIVEL ACTUATOREXL-65
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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EXL
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Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harnesses.
5.CHECK

Page 2776 of 5598

INFINITI QX56 2011 Factory Service Manual
EXL-66
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2503, B2504 SWIVEL ACTUATOR
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 8.
7.CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT
1. Turn ignitio

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