INFINITI QX56 2011 Factory Service Manual

A/T CONTROL SYSTEMTM-83
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JCDWM1065GB
Revision: 2010 May2011 QX56

TM-84
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A/T CONTROL SYSTEM
JCDWM1066GB
Revision: 2010 May2011 QX56

A/T SHIFT LOCK SYSTEMTM-85
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A/T SHIFT LOCK SYSTEM
Wiring DiagramINFOID:0000000006226788
JCDWM1032GB
Revision: 2010 May2011 QX56

TM-86
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A/T SHIFT LOCK SYSTEM
JCDWM1067GB
Revision: 2010 May2011 QX56

A/T SHIFT LOCK SYSTEMTM-87
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JCDWM1068GB
Revision: 2010 May2011 QX56

TM-88
< BASIC INSPECTION >[7AT: RE7R01B]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Diagnosis FlowINFOID:0000000006226789
1.OBTAIN INFORMATION ABOUT SYMPTOM
1. Refer to TM-89, "
Question sheet" and interview the customer to obtai n the malfunction information (condi-
tions and environment when the malfunction occurred) as much as possible when the customer brings in
the vehicle.
2. Check the following:
- Service history
- Harnesses and connectors malfunction. Refer to GI-40, "
Intermittent Incident".
>> GO TO 2.
2.CHECK DTC
1. Before checking the malfunction, check whether any DTC exists.
2. If DTC exists, perform the following operations.
- Record the DTC and freeze frame data. (Print out t he data using CONSULT-III and affix them to the Work
Order Sheet.)
- Erase DTCs.
- Check the relationship between the cause that is clarified with DTC and the malfunction information
described by the customer. TM-165, "
Symptom Table" is effective.
3. Check the information of related service bulletins and others also.
Do malfunction information and DTC exist?
Malfunction information and DTC exists. >>GO TO 3.
Malfunction information exists, but no DTC. >>GO TO 4.
No malfunction information, but DTC exists. >>GO TO 5.
3.REPRODUCE MALFUNCTION SYMPTOM
Check any malfunction described by a custom er, except those with DTC on the vehicle.
Also investigate whether the symptom is a fail-safe or normal operation. Refer to TM-74, "
Fail-Safe".
When a malfunction symptom is reproduced, t he question sheet is effective. Refer to TM-89, "
Question sheet".
Verify the relationship between the symptom and the condi tions in which the malfunction described by the cus-
tomer occurs.
>> GO TO 5.
4.REPRODUCE MALFUNCTION SYMPTOM
Check the malfunction described by the customer on the vehicle.
Also investigate whether the symptom is a fail-safe or normal operation. Refer to TM-74, "
Fail-Safe".
When a malfunction symptom is reproduced, t he question sheet is effective. Refer to TM-89, "
Question sheet".
Verify the relationship between the symptom and the condi tions in which the malfunction described by the cus-
tomer occurs.
>> GO TO 6.
5.PERFORM “DTC CONFIRMATION PROCEDURE”
Perform “DTC CONFIRMATION PROCEDURE” of the appr opriate DTC to check if DTC is detected again.
Refer to TM-77, "
DTC Inspection Priority Chart" when multiple DTCs are detected, and then determine the
order for performing the diagnosis.
NOTE:
If no DTC is detected, refe r to the freeze frame data.
Is any DTC detected?
YES >> GO TO 7.
NO >> Check according to GI-40, "
Intermittent Incident".
Revision: 2010 May2011 QX56

DIAGNOSIS AND REPAIR WORK FLOWTM-89
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6.IDENTIFY MALFUNCTIONING SYSTEM WI TH “DIAGNOSIS CHART BY SYMPTOM”
Use TM-165, "
Symptom Table" from the symptom inspection result in step 4. Then identify where to start per-
forming the diagnosis based on possible causes and symptoms.
>> GO TO 8.
7.REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the detected malfunctioning parts.
Reconnect parts or connector after repairing or replacing, and then erase DTC if necessary.
>> GO TO 8.
8.FINAL CHECK
Perform “DTC CONFIRMATION PROCEDURE” again to make sure that the repair is correctly performed.
Check that malfunctions are not reproduced when obtai ning the malfunction information from the customer,
referring to the symptom inspection result in step 3 or 4.
Is DTC or malfunction symptom reproduced?
YES-1 >> DTC is reproduced: GO TO 5.
YES-2 >> Malfunction symptom is reproduced: GO TO 6.
NO >> Before delivering the vehicle to the customer, make sure that DTC is erased.
Question sheetINFOID:0000000006226790
DESCRIPTION
There are many operating conditions that may cause a malfunction
of the transmission parts. By understanding those conditions prop-
erly, a quick and exact diagnosis can be achieved.
In general, customers have their own criteria for a problem. There-
fore, it is important to understand the symptom and status well
enough by asking the customer about the concerns carefully. In
order to systemize all the inform ation for the diagnosis, prepare the
question sheet referring to the question points.
WORKSHEET SAMPLE
SEF907L
Question Sheet
Customer name MR/MS Engine # Manuf. Date Incident Date VIN
Model & Year In Service Date
Trans. Mileage km / Mile
Revision: 2010 May2011 QX56

TM-90
< BASIC INSPECTION >[7AT: RE7R01B]
DIAGNOSIS AND REPAIR WORK FLOW
Symptoms
† Vehicle does not move ( † Any position † Particular position )
† No upshift ( † 1GR → 2GR † 2GR → 3GR † 3GR → 4GR † 4GR → 5GR † 5GR →
6GR † 6GR → 7GR)
† No downshift ( † 7GR → 6GR † 6GR → 5GR † 5GR → 4GR † 4GR → 3GR † 3GR →
2GR † 2GR → 1GR)
† Lock-up malfunction
† Shift point too high or too low
† Shift shock or slip
† Noise or vibration
† No kick down
† No pattern select
† Others
Frequency † All the time † Under certain conditions † Sometimes ( times a day)
Weather conditions † Not affected
Weather † Fine † Clouding † Raining † Snowing † Other ( )
Te m p . † Hot † Warm
† Cool † Cold †
Temp. [Approx. °C (
° F)]
Humidity † High † Middle † Low
Transmission conditions † Not affected
† Cold † During warm-up † After warm-up
† Engine speed ( rpm)
Road conditions † Not affected
† In town † In suburbs † Freeway † Off road (Up / Down)
Driving conditions † Not affected
† At starting † While idling † While engine racing † At racing †
While cruis-
ing
† While accelerating † While decelerating † While turning (Right / Left)
† Vehicle speed [ km/h ( MPH)]
Other conditions Question Sheet
Revision: 2010 May2011 QX56

ADDITIONAL SERVICE WHEN REPLACING TRANSMISSION ASSEMBLY
TM-91
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ADDITIONAL SERVICE WHEN REPL ACING TRANSMISSION ASSEMBLY
DescriptionINFOID:0000000006233270
Decel G sensor calibration must be performed when replacing A/T assembly.
Special Repair RequirementINFOID:0000000006233271
1.PREPARATION BEFORE CALIBRATION PROCEDURE
1. Park the vehicle on a flat road.
2. Adjust pressure in all tires to the specified value. Refer to WT-69, "
Tire Air Pressure".
>> GO TO 2.
2.PERFORM CALIBRATION
With CONSULT-III
1. Turn ignition switch ON.
CAUTION:
Never start the engine.
2. Select “G SENSOR CALIBRATION” in “Work Support” in “TRANSMISSION”.
3. Touch “START”. CAUTION:
Never give any motion to the vehicle during the calibration.
Is
“completed” displayed?
YES >> GO TO 3.
NO >> Perform the calibration again.
3.CHECK DTC
With CONSULT-III
1. Turn ignition switch OFF and wait 10 seconds or more.
2. Turn ignition switch ON.
3. Select “Self Diagnostic Results” in “ABS”.
Is
“C1145” or “C1146” detected?
YES >> Refer to BRC-51, "DTC Index".
NO >> Calibration end.
Revision: 2010 May2011 QX56

TM-92
< BASIC INSPECTION >[7AT: RE7R01B]
ADDITIONAL SERVICE WHEN RE
PLACING CONTROL VALVE & TCM
ADDITIONAL SERVICE WHEN REPLACING CONTROL VALVE & TCM
DescriptionINFOID:0000000006233274
Decel G sensor calibration must be performed when replacing control valve & TCM.
Special Repair RequirementINFOID:0000000006233275
1.PREPARATION BEFORE CALIBRATION PROCEDURE
1. Park the vehicle on a flat road.
2. Adjust pressure in all tires to the specified value. Refer to WT-69, "
Tire Air Pressure".
>> GO TO 2.
2.PERFORM CALIBRATION
With CONSULT-III
1. Turn ignition switch ON.
CAUTION:
Never start the engine.
2. Select “G SENSOR CALIBRATION” in “Work Support” in “TRANSMISSION”.
3. Touch “START”. CAUTION:
Never give any motion to the vehicle during the calibration.
Is
“completed” displayed?
YES >> GO TO 3.
NO >> Perform the calibration again.
3.CHECK DTC
With CONSULT-III
1. Turn ignition switch OFF and wait 10 seconds or more.
2. Turn ignition switch ON.
3. Select “Self Diagnostic Results” in “ABS”.
Is
“C1145” or “C1146” detected?
YES >> Refer to BRC-51, "DTC Index".
NO >> Calibration end.
Revision: 2010 May2011 QX56