2011 INFINITI QX56 lock

TCM
TM-75
< ECU DIAGNOSIS INFORMATION > [7AT: RE7R01B]
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DTC Veh ic le
condition Vehicle behavior for 1st fail-safe Vehicle behavior for 2nd fail-safe Vehicle behavior for final fail-safe
P0615 — Starter is disabled — Starter is disabled
P0705 —  Fixed in the “D” position (The
shifting can be performed)
 30 km/h (19MPH) or less
 Lock-up is prohibited
 The shifting between the gears of 3 - 4 - 5 - 6 - 7 can be per-
formed
 Manual mode is prohibited
 Shift position indicator is
switched OFF
 Starter relay is switched OFF
(starter is disabled)
 Back-up lamp is OFF
 Large shift shock — Fixed in the “D” position (The
shifting can be performed)
 30 km/h (19 MPH) or less
 Lock-up is prohibited
 The shifting between the gears of 3 - 4 - 5 - 6 - 7 can be per-
formed
 Manual mode is prohibited
 Shift position indicator is
switched OFF
 Starter relay is switched OFF
(starter is disabled)
 Back-up lamp is OFF
 Large shift shock
P0710 Between
the gears of 1 - 2 - 3  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited —
 The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited
Between
the gears of
4 - 5 - 6 - 7  Fix the gear while driving
 Manual mode is prohibited
—
P0717 Between
the gears of 1 - 2 - 3  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited —
 The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited
Between
the gears of 4 - 5 - 6 - 7  Fix the gear while driving
 Manual mode is prohibited
—
P0720 Between
the gears of
1 - 2 - 3  Only downshift can be per-
formed
 Manual mode is prohibited
 A vehicle speed signal from the combination mete r is regarded
as an effective signal —
 The shifting between the gears of 1 - 2 - 3 can be performed
 Manual mode is prohibited
Between
the gears of
4 - 5 - 6 - 7  Fix the gear at driving
 Manual mode is prohibited
 A vehicle speed signal from the
combination mete r is regarded
as an effective signal —
P0729
P0731
P0732
P0733
P0734
P0735
P1734 Neutral
malfunction
between
the gears of
1 - 2 - 3 and
7
Locks in 4GR
 Manual mode is prohibited
 Neutral
—Locks in 1GR
 The shifting between the gears
of 1 - 2 can be performed
 The shifting between the gears of 1 - 2 - 3 can be performed
 The shifting between the gears
of 4 - 5 - 6 can be performed
 Manual mode is prohibited
Other than
the above  Driving with the gear ratio be-
tween 1GR and 2GR
 Driving with the gear ratio be- tween 2GR and 3GR
Locks in 3GR
Locks in 4GR
 Fix the gear while driving
 Manual mode is prohibited
 Neutral  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited Locks in 1GR
 The shifting between the gears
of 1 - 2 can be performed
 The shifting between the gears of 1 - 2 - 3 can be performed
 The shifting between the gears of 2 - 3 - 4 can be performed
 The shifting between the gears
of 3 - 4 can be performed
 The shifting between the gears of 4 - 5 - 6 can be performed
 Manual mode is prohibited
Revision: 2010 May2011 QX56

TM-76
< ECU DIAGNOSIS INFORMATION >[7AT: RE7R01B]
TCM
Protection Control
INFOID:0000000006226784
The TCM becomes the protection control status temporar ily to protect the safety when the safety of TCM and
transmission is lost. It automatically returns to the normal status if the safety is secured.
The TCM has the following protection control.
REVERSE INHIBIT CONTROL
Intercepts the torque transmission and shift to the neutral stat us if the selector lever is shifted to “R” position
while the vehicle moves forward at the vehicle speed 10 km/h (7 MPH) or more.
P0730 —  Manual mode is prohibited
Neutral  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited  Locks in 1GR
 The shifting between the gears
of 1 - 2 can be performed
 The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited
P0740 —  Lock-up is prohibited
 Slip lock-up is prohibited — Lock-up is prohibited
 Slip lock-up is prohibited
P0744 —  Lock-up is prohibited
 Slip lock-up is prohibited
— Lock-up is prohibited
 Slip lock-up is prohibited
P0750
P0775
P0795
P2713
P2722
P2731
P2807 —
 Locks in 2GR, 3GR, 4GR, 5GR,
6GR or 7GR
 Manual mode is prohibited — Locks in 1GR
 The shifting between the gears
of 1 - 2 - 3 can be performed
 The shifting between the gears of 3 - 4 - 5 can be performed
 The shifting between the gears
of 4 - 5 - 6 can be performed
 The shifting between the gears of 1 - 2 - 3 - 4 - 5 - 6 can be per-
formed
 Manual mode is prohibited
P0780 —  Manual mode is prohibited
Neutral — The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited
P1705 —  Downshift when accelerator ped-
al is depressed is prohibited
 Upshift when accelerator pedal
is released is prohibited
 Manual mode is prohibited  Downshift when accelerator ped-
al is depressed is prohibited
 Upshift when accelerator pedal
is released is prohibited
 Manual mode is prohibited  Downshift when accelerator ped-
al is depressed is prohibited
 Upshift when accelerator pedal
is released is prohibited
 Manual mode is prohibited
P1730 — Neutral
 Manual mode is prohibited  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited  Locks in 1GR
 The shifting between the gears
of 2 - 3 - 4 can be performed
 The shifting between the gears of 3 - 4 can be performed
 The shifting between the gears of 4 - 5 - 6 can be performed
 Manual mode is prohibited
P1815 — Manual mode is prohibited — Manual mode is prohibited
U0300
U1000 Between
the gears of
1 - 2 - 3  The shifting between the gears
of 1 - 2 - 3 can be performed
 Manual mode is prohibited —
 The shifting between the gears
of 1 - 2 - 3 can be performed
 Line pressure is set to the maxi- mum hydraulic pressure
 Manual mode is prohibited
Between
the gears of 4 - 5 - 6 - 7  Fix the gear at driving
 Manual mode is prohibited
—
P0720 and
P1721 — Locks in 5GR — Locks in 5GR
DTC
Vehicle
condition Vehicle behavior for 1st fail-safe Vehicle behavior for 2nd fail-safe Vehicle behavior for final fail-safe
Revision: 2010 May2011 QX56

TM-78
< ECU DIAGNOSIS INFORMATION >[7AT: RE7R01B]
TCM
DTC Index
INFOID:0000000006226786
NOTE:
 If some DTCs are displayed at the same time, per form inspections one by one based on the priority as per
the following list. Refer to TM-77, "
DTC Inspection Priority Chart".
 The IGN counter is indicated in Freeze frame data (FFD). Refer to TM-61, "
CONSULT-III Function (TRANS-
MISSION)".
2P0615 STARTER RELAY
TM-104, "
DTC Logic"
P0705 T/M RANGE SWITCH ATM-106, "DTC Logic"
P0710 FLUID TEMP SENSOR ATM-107, "DTC Logic"
P0717 INPUT SPEED SENSOR ATM-109, "DTC Logic"
P0720 OUTPUT SPEED SENSOR TM-110, "DTC Logic"
P0740 TORQUE CONVERTERTM-128, "DTC Logic"
P0745 PC SOLENOID ATM-131, "DTC Logic"
P0750 SHIFT SOLENOID ATM-132, "DTC Logic"
P0775 PC SOLENOID BTM-133, "DTC Logic"
P0795 PC SOLENOID CTM-136, "DTC Logic"
P2713 PC SOLENOID DTM-147, "DTC Logic"
P2722 PC SOLENOID ETM-148, "DTC Logic"
P2731 PC SOLENOID FTM-149, "DTC Logic"
P2807 PC SOLENOID GTM-150, "DTC Logic"
3P0729 6GR INCORRECT RATIO
TM-114, "
DTC Logic"
P0730 INCORRECT GR RATIOTM-116, "DTC Logic"
P0731 1GR INCORRECT RATIOTM-118, "DTC Logic"
P0732 2GR INCORRECT RATIOTM-120, "DTC Logic"
P0733 3GR INCORRECT RATIOTM-122, "DTC Logic"
P0734 4GR INCORRECT RATIOTM-124, "DTC Logic"
P0735 5GR INCORRECT RATIOTM-126, "DTC Logic"
P0744 TORQUE CONVERTERTM-129, "DTC Logic"
P0780 SHIFTTM-134, "DTC Logic"
P1730 INTERLOCKTM-140, "DTC Logic"
P1734 7GR INCORRECT RATIOTM-142, "DTC Logic"
4U0300 CAN COMM DATA
TM-102, "
DTC Logic"
P0725 ENGINE SPEED TM-112, "DTC Logic"
P1705 TP SENSORTM-137, "DTC Logic"
P1721 VEHICLE SPEED SIGNALTM-138, "DTC Logic"
P1815 M-MODE SWITCHTM-144, "DTC Logic"
Priority Detected items (DTC) Reference
DTC*1
Items
(CONSULT-III screen terms) Reference
MIL*2, “ENGINE” with
CONSULT-III or GST CONSULT-III only
“TRANSMISSION”
— P0615 STARTER RELAY TM-104
P0705 P0705 T/M RANGE SWITCH A TM-106
P0710 P0710 FLUID TEMP SENSOR ATM-107
P0717 P0717 INPUT SPEED SENSOR ATM-109
P0720 P0720 OUTPUT SPEED SENSOR TM-110
Revision: 2010 May2011 QX56

TCM
TM-79
< ECU DIAGNOSIS INFORMATION > [7AT: RE7R01B]
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*1: These numbers are prescribed by SAE J2012.
*2: Refer to TM-60, "
Diagnosis Description".
— P0725 ENGINE SPEED
TM-112
P0729 P0729 6GR INCORRECT RATIO TM-114
P0730 P0730 INCORRECT GR RATIOTM-116
P0731 P0731 1GR INCORRECT RATIOTM-118
P0732 P0732 2GR INCORRECT RATIOTM-120
P0733 P0733 3GR INCORRECT RATIOTM-122
P0734 P0734 4GR INCORRECT RATIOTM-124
P0735 P0735 5GR INCORRECT RATIOTM-126
P0740 P0740 TORQUE CONVERTERTM-128
P0744 P0744 TORQUE CONVERTERTM-129
P0745 P0745 PC SOLENOID ATM-131
P0750 P0750 SHIFT SOLENOID ATM-132
P0775 P0775 PC SOLENOID BTM-133
P0780 P0780 SHIFTTM-134
P0795 P0795 PC SOLENOID CTM-136
— P1705 TP SENSORTM-137
— P1721 VEHICLE SPEED SIGNALTM-138
P1730 P1730 INTERLOCK TM-140
P1734 P1734 7GR INCORRECT RATIOTM-142
— P1815 M-MODE SWITCHTM-144
P2713 P2713 PC SOLENOID D TM-147
P2722 P2722 PC SOLENOID ETM-148
P2731 P2731 PC SOLENOID FTM-149
P2807 P2807 PC SOLENOID GTM-150
— U0300 CAN COMM DATATM-102
U1000 U1000 CAN COMM CIRCUIT TM-103
DTC*1
Items
(CONSULT-III screen terms) Reference
MIL*2, “ENGINE” with
CONSULT-III or GST CONSULT-III only
“TRANSMISSION”
Revision: 2010 May2011 QX56

A/T SHIFT LOCK SYSTEMTM-85
< WIRING DIAGRAM > [7AT: RE7R01B]
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A/T SHIFT LOCK SYSTEM
Wiring DiagramINFOID:0000000006226788
JCDWM1032GB
Revision: 2010 May2011 QX56

TM-86
< WIRING DIAGRAM >[7AT: RE7R01B]
A/T SHIFT LOCK SYSTEM
JCDWM1067GB
Revision: 2010 May2011 QX56

A/T SHIFT LOCK SYSTEMTM-87
< WIRING DIAGRAM > [7AT: RE7R01B]
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JCDWM1068GB
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