2011 INFINITI QX56 turn signal

TM-58
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
SYSTEM
A/T SHIFT LOCK SYSTEM : System Description
INFOID:0000000006226779
The selector lever cannot be shift ed from the “P” position unless the
brake pedal is depressed while the ignition switch is set to ON. The
shift lock is unlocked by turning the shift lock solenoid ON when the
ignition switch is set to ON, the park position switch is turned ON
(selector lever is in “P” position), and the stop lamp switch is turned
ON (brake pedal is depressed) as shown in the operation chart in the
figure. Therefore, the shift lock solenoid receives no ON signal and
the shift lock remains locked if all of the above conditions are not ful-
filled. (However, selector operation is allowed if the shift lock release
button is pressed.)
SHIFT LOCK OPERATION AT “P” POSITION
When Brake Pedal Is Not Depressed (No Selector Operation Allowed)
The shift lock solenoid (A) is turned OFF (not energized) and the
solenoid rod (B) is extended with the spring when the brake pedal is
not depressed (no selector operation allowed) with the ignition
switch ON.
The connecting lock lever (C) is located at the position shown in the
figure when the solenoid rod is extended. It prevents the movement
of the detent rod (D). For these r easons, the selector lever cannot be
shifted from the “P” position.
When Brake Pedal Is Depressed (Shift Operation Allowed)
The shift lock solenoid (A) is turned ON (energized) when the brake
pedal is depressed with the ignition switch ON. The solenoid rod (B)
is compressed by the electrom agnetic force. The connecting lock
lever (C) rotates when the solenoid is activated. Therefore, the
detent rod (D) can be moved. For these reasons, the selector lever
can be shifted to other positions.
“P” POSITION HOLD MECHANI SM (IGNITION SWITCH LOCK)
JPDIA0624GB
JPDIA0612ZZ
JPDIA0613ZZ
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (TCM)TM-61
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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DIAGNOSIS SYSTEM (TCM)
CONSULT-III Function (TRANSMISSION)INFOID:0000000006226781
CONSULT-III APPLICATION ITEMS
*: Although “Function Test” and “Special Function” are selectable, do not use its.
WORK SUPPORT
SELF DIAGNOSTIC RESULTS
Refer to TM-78, "DTC Index".
IGN Counter
The IGN counter is indicated in Fr eeze frame data (FFD) and indicates the number of times that the ignition
switch is turned ON after returning to the normal state from DTC.
 CAN malfunction
- The number is 0 when a malfunction is detected now.
- The number increases like 1 → 2 → 3...38 → 39 after returning to the normal condition whenever ignition
switch OFF → ON.
- The number is fixed to 39 until the self-di agnosis results are erased if it is over 39.
 Other than CAN malfunction
- The number is 0 when a malfunction is detected now.
- The number increases like 1 → 2 → 3...254 → 255 after returning to the normal condition whenever ignition
switch OFF → ON.
- The number is fixed to255 until the self-diagno sis results are erased if it is over 255.
DATA MONITOR
X: Standard, —: Not applicable, : Option
Diagnostic test mode Function
Work Support This mode enables a technician to adjust some devices faster and more accurately.
Self Diagnostic Results Retrieve DTC from ECU and display diagnostic items.
Data Monitor Monitor the input/output signal of the control unit in real time.
CAN Diagnosis This mode displays a network diagnosis result about CAN by a diagram.
CAN Diagnostic Support
Monitor It monitors the status of CAN communication.
DTC & SRT confirmation The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
ECU Identification Display the ECU identification number (part number etc.) of the selected system.
Function Test* This mode can show results of self-diagnosis of ECU with either “OK” or “NG”. For engine, more prac-
tical tests regarding sensors/switches and/or actuators are available.
Special Function* Other results or histories, etc. that are recorded in ECU are displayed.
Item name Description
G SENSOR CALIBRATION Calibrates G sensor.
Monitored item (Unit) Monitor Item Selection
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
ITEM
VHCL/S SE-A/T (km/h or mph) X X Displays the vehicle speed calculated by the
TCM from the output shaft revolution.
ESTM VSP SIG (km/h or mph) X — Displays the vehicle speed signal received via
CAN communication.
OUTPUT REV (rpm) X X Displays the output speed calculated from the
pulse signal of output speed sensor.
Revision: 2010 May2011 QX56

TM-72
< ECU DIAGNOSIS INFORMATION >[7AT: RE7R01B]
TCM
SHIFT IND SIGNALWhen the selector lever is positioned in between each po-
sition.
OFF
Selector lever in “P” position P
Selector lever in “R” position R
Selector lever in “N” position N
Selector lever in “D” position D
Selector lever in “D” position: 7GR
Selector lever in “D” position: 6GR 6
Selector lever in “D” position: 5GR 5
Selector lever in “D” position: 4GR 4
Selector lever in “D” position: 3GR 3
Selector lever in “D” position: 2GR 2
Selector lever in “D” position: 1GR 1
Selector lever in “M” position: 1GR M1
Selector lever in “M” position: 2GR M2
Selector lever in “M” position: 3GR M3
Selector lever in “M” position: 4GR M4
Selector lever in “M” position: 5GR M5
Selector lever in “M” position: 6GR M6
Selector lever in “M” position: 7GR M7
Driving with DS mode DS
STARTER RELAY Selector lever in “P
” and “N” positions ON
Other than the above OFF
F-SAFE IND/L For 2 seconds after the ignition switch is turned ON ON
Other than the above OFF
ATF WARN LAMP* When TCM transmits the ATF indicator lamp signal ON
Other than the above OFF
MANU MODE IND Driving with manual mode ON
Other than the above OFF
ON OFF SOL MON Selector lever in “P
” and “N” positions
ON
Driving with 1GR to 3GR
Other than the above OFF
START RLY MON Selector lever in “P
” and “N” positions ON
Other than the above OFF
ON OFF SOL Selector lever in “P
” and “N” positions
ON
Driving with 1GR to 3GR
Other than the above OFF
Item name Condition Value / Status (Approx.)
Revision: 2010 May2011 QX56

TM-74
< ECU DIAGNOSIS INFORMATION >[7AT: RE7R01B]
TCM
Fail-Safe
INFOID:0000000006226783
TCM has the electrical fail-safe mode. The mode is divi ded into a maximum of 3 phases (1st fail-safe, 2nd fail-
safe and final fail-safe) and functions so that the operat ion can be continued even if the signal circuit of the
main electronically controll ed input/output parts is damaged.
Even if the electronic circuit is normal, the fail-safe mode may start under special conditions (such as when the
brake pedal is depressed suddenly from a hard wheel spin status to stop the rotation of wheels). In this case,
turn the ignition switch OFF and back to ON after 5 seconds to resume the normal shift pattern.
Consequently, the customer's vehicle may already return to the normal condition. Refer to TM-88, "
Diagnosis
Flow".
FAIL-SAFE FUNCTION
3
(L) —CAN-H
Input/
Output ——
4
(SB) —K-line Input/
Output ——
5
(B) Ground Ground Output Always 0 V
6
(V) Ground Power supply Input Ignition switch ON Battery voltage
Ignition switch OFF 0 V
7
(R) Ground Back-up lamp relay Input Ignition switch ON Selector lever in
“R” position. 0 V
Selector lever in other than
above. Battery voltage
8
(P) —CAN-L Input/
Output ——
9
(BR) Ground Starter relay Output Ignition switch ON Selector lever in “N” and “P” po-
sitions.
Battery voltage
Selector lever in other than
above. 0 V
10
(B) Ground Ground Output Always 0 V
Te r m i n a l
(Wire color) Description
Condition Value (Approx.)
+ −Signal name Input/
Output
1st Fail-Safe The mode that the vehicle can stop safely, to prompt the driver to stop if the malfunction occurs and to shift to
2nd fail-safe early. It shifts to 2nd fail-safe or final fail-safe after the vehicle stopped.
2nd Fail-Safe The mode that the vehicle shifts to final fail-safe without changing the behavior, by identifying the malfunction-
ing parts in the condition that the driving force required for the driving is secured.
Final Fail-Safe  Selects the shifting pattern that the malfunctioning parts identified at 1st fail-safe and 2nd fail-safe are not
used, and then secure the driving forc e that is required for the driving.
 The mode that the shifting performance does not decrease by normal shift control.
Revision: 2010 May2011 QX56

TCM
TM-77
< ECU DIAGNOSIS INFORMATION > [7AT: RE7R01B]
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1ST ENGINE BRAKE PROTECTION CONTROL
Controls the engine brake so as not to make effective by turning the front brake solenoid output to OFF when
each solenoid becomes the electricity pattern of 1st engine brake during driving at the vehicle speed 25 km/h
or more in any positions other than “R” position and 1GR.
TCM HIGH TEMPERATURE PROTECTION CONTROL
Limit the accelerator opening and forcibly control the vehi cle to the low torque driving when the electronic sub-
strate in TCM reaches the high temperature.
DTC Inspection Priority ChartINFOID:0000000006226785
If some DTCs are displayed at the same time, perfo rm inspections one by one based on the priority as per the
following list.
Malfunction detection condition Vehicle speed: 10 km/h (7 MPH) or more
Control at malfunction Neutral
Normal return condition  Vehicle speed: 8 km/h (5 MPH) or less
and
 Engine speed: 2,200 rpm or less
Vehicle behavior  The torque transmission cannot be performed
 There is a shock just before a vehicle stop
Malfunction detection condition Select lever and gear: Any position other than “R” position and 1GR
and
 Vehicle speed: More than 25 km/h (16 MPH)
Control at malfunction Front brake solenoid output signal; OFF
Normal return condition Other than detection condition of malfunction
Vehicle behavior Does not exist
Malfunction detection condition TCM electronic substrate temperature
145
°C (293 °F) and 120 seconds
or
150 °C (302 °F)
Control at malfunction Accelerator opening: 0.5/8 or less
Normal return condition  TCM electronic substrate temperature: Less than 140
°C (284 °F)
and
 Vehicle speed: 5 km/h (3 MPH) or less
Vehicle behavior Accelerator opening: output torque of approximately 0.5/8
Priority Detected items (DTC) Reference 1 U1000 CAN COMM CIRCUIT TM-103, "
DTC Logic"
Revision: 2010 May2011 QX56

U1000 CAN COMM CIRCUITTM-103
< DTC/CIRCUIT DIAGNOSIS > [7AT: RE7R01B]
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U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006226798
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communica tion speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicl e, and each control unit shares information and links
with other control units during operation (not independently ). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L li ne) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
DTC LogicINFOID:0000000006226799
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” is previously c onducted, always turn ignition switch OFF and wait at
least 10 seconds before performing the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Run engine for at least 2 cons ecutive seconds at idle speed.
3. Perform “Self Diagnostic Resu lts” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT-III”
Is
“U1000” detected?
YES >> Go to TM-103, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006226800
Go to LAN-18, "Trouble Diagnosis Flow Chart".
DTC Trouble diagnosis name DTC is detected if... Possible cause
U1000 CAN Communication Line TCM is not transmitting or re-
ceiving CAN communication
signal for 2 seconds or more. Harness or connectors
(CAN communication line is
open or shorted.)
TCM
Revision: 2010 May2011 QX56

TM-104
< DTC/CIRCUIT DIAGNOSIS >[7AT: RE7R01B]
P0615 STARTER RELAY
P0615 STARTER RELAY
DescriptionINFOID:0000000006226801
TCM prohibits cranking other than at “P” or “N” position.
DTC LogicINFOID:0000000006226802
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” is previously c onducted, always turn ignition switch OFF and wait at
least 10 seconds before performing the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III
1. Shift the selector lever to “P” and “N” positions.
2. Turn ignition switch ON and wait 2 seconds or more.
3. Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is
“P0615” detected?
YES >> Go to TM-104, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006226803
1.CHECK STARTER RELAY SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector terminal and ground.
Is the inspection result normal?
YES >> Check starter relay circuit. Refer to STR-7, "Wiring Diagram".
NO >> GO TO 2.
2. CHECK HARNESS BETWEEN A/T ASSEMBLY AND IPDM E/R (PART 1)
1. Turn ignition switch OFF.
2. Disconnect A/T assembly c onnector and IPDM E/R connector.
3. Check the continuity between A/T assembly vehi cle side harness connector terminal and IPDM E/R vehi-
cle side harness connector terminal.
DTC Trouble diagnosis name DTC is detected if... Possible cause
P0615 Starter Relay Circuit The starter monitor value is
OFF when the ignition switch is
ON at the “P” and “N” positions. Harness or connectors
(Starter relay and TCM circuit
is open or shorted.)
 Starter relay circuit
IPDM E/R connector
GroundCondition Voltage (Approx.)
Connector Terminal
E15 48 Selector lever in “P” and
“N” positions.
Battery voltage
Selector lever in other
positions. 0 V
Revision: 2010 May2011 QX56

P0717 INPUT SPEED SENSOR ATM-109
< DTC/CIRCUIT DIAGNOSIS > [7AT: RE7R01B]
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P0717 INPUT SPEED SENSOR A
DTC LogicINFOID:0000000006226808
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” is previously c onducted, always turn ignition switch OFF and wait at
least 10 seconds before performing the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Select “SLCT LVR POSI”, “GEAR”, “VHCL/S SE-A/ T”, “W/O THL POS” and “ENGINE SPEED” in “Data
Monitor” in “TRANSMISSION”.
3. Drive vehicle and maintain the following conditions for 5 seconds or more. CAUTION:
Keep the same gear position.
NOTE:
Driving the vehicle uphill (increased engine load) will hel p maintain the driving conditions required for this
test.
4. Perform “Self Diagnostic Resu lts” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT-III”.
Is
“P0717” detected?
YES >> Go to TM-109, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006226809
1.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace the control valve & TCM. Refer to TM-182, "Exploded View".
NO >> Repair or replace damaged parts.
DTC Trouble diagnosis name DTC is detected if... Possible cause
P0717 Input/Turbine Speed Sensor A
Circuit No Signal The revolution of input speed
sensor 1 and/or 2 is 270 rpm or
less. Harness or connectors
(Sensor circuit is open.)
 Input speed sensor 1 and/or 2
SLCT LVR POSI : D
GEAR : 2nd, 3rd, 4th, 5th or 6th
VHCL/S SE-A/T : More than 40 km/h (25 MPH)
W/O THL POS : ON
ENGINE SPEED : More than 1,500 rpm
Revision: 2010 May2011 QX56