Infiniti QX56 (Z62). Manual - part 1288

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 Freeze 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-diagnosis 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-diagnosis 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.

TM-62

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

DIAGNOSIS SYSTEM (TCM)

INPUT SPEED

(rpm) 

X

X

Displays the input speed calculated from front 
sun gear revolution and front carrier revolution.

F SUN GR REV

(rpm) 

—

—

Displays the front sun gear revolution calculat-
ed from the pulse signal of input speed sensor 
1.

F CARR GR REV

(rpm) 

—

—

Displays the front carrier gear revolution calcu-
lated from the pulse signal of input speed sen-
sor 2.

ENGINE SPEED

(rpm) 

X

X

Displays the engine speed received via CAN 
communication.

TC SLIP SPEED

(rpm) 

—

X

Displays the revolution difference between in-
put speed and engine speed.

ACCELE POSI

(0.0/8)

X

—

Displays the accelerator position estimated val-
ue received via CAN communication.

THROTTLE POSI

(0.0/8)

X

X

Displays the throttle position received via CAN 
communication.

ATF TEMP 1

(

°

C or 

°

F)

X

X

Displays the ATF temperature of oil pan calcu-
lated from the signal voltage of A/T fluid tem-
perature sensor.

ATF TEMP 2

(

°

C or 

°

F)

X

X

Displays the ATF temperature estimated value 
of torque converter outlet calculated from the 
signal voltage of A/T fluid temperature sensor.

ATF TEMP SE 1

(V)

—

—

Displays the signal voltage of A/T fluid temper-
ature sensor.

BATTERY VOLT

(V)

X

—

Displays the power supply voltage of TCM.

LINE PRES SOL

(A)

—

X

Displays the command current from TCM to the 
line pressure solenoid.

TCC SOLENOID

(A)

—

X

Displays the command current from TCM to the 
torque converter clutch solenoid.

L/B SOLENOID

(A)

—

X

Displays the command current from TCM to the 
low brake solenoid.

FR/B SOLENOID

(A)

—

X

Displays the command current from TCM to the 
front brake solenoid.

HLR/C SOL

(A)

—

X

Displays the command current from TCM to the 
high and low reverse clutch solenoid.

I/C SOLENOID

(A)

—

X

Displays the command current from TCM to the 
input clutch solenoid.

D/C SOLENOID

(A)

—

X

Displays the command current from TCM to the 
direct clutch solenoid.

2346/B SOL

(A)

—

X

Displays the command current from TCM to the 
2346 brake solenoid.

L/P SOL MON

(A)

—

—

Monitors the command current from TCM to the 
line pressure solenoid, and displays the moni-
tor value.

TCC SOL MON

(A)

—

—

Monitors the command current from TCM to the 
torque converter clutch solenoid, and displays 
the monitor value.

L/B SOL MON

(A)

—

—

Monitors the command current from TCM to the 
low brake solenoid, and displays the monitor 
value.

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 

ITEM

DIAGNOSIS SYSTEM (TCM)

TM-63

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

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FR/B SOL MON

(A)

—

—

Monitors the command current from TCM to the 
front brake solenoid, and displays the monitor 
value.

HLR/C SOL MON

(A)

—

—

Monitors the command current from TCM to the 
high and low reverse clutch solenoid, and dis-
plays the monitor value.

I/C SOL MON

(A)

—

—

Monitors the command current from TCM to the 
input clutch solenoid, and displays the monitor 
value.

D/C SOL MON

(A)

—

—

Monitors the command current from TCM to the 
direct clutch solenoid, and displays the monitor 
value.

2346/B SOL MON

(A)

—

—

Monitors the command current from TCM to the 
2346 brake solenoid, and displays the monitor 
value.

GEAR RATIO

—

X

Displays the gear ratio calculated from input 
speed and output speed.

ENGINE TORQUE

(Nm)

—

—

Displays the engine torque estimated value re-
ceived via CAN communication.

ENG TORQUE D

(Nm)

—

—

Displays the engine torque estimated value re-
flected the requested torque of each control unit 
received via CAN communication.

INPUT TRQ S

(Nm)

—

—

Displays the input torque using for the oil pres-
sure calculation process of shift change control.

INPUT TRQ L/P

(Nm)

—

—

Displays the input torque using for the oil pres-
sure calculation process of line pressure con-
trol.

TRGT PRES L/P

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of torque 
converter clutch solenoid valve calculated by 
the oil pressure calculation process of lock-up 
control.

TRGT PRES TCC

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of torque 
converter clutch solenoid valve calculated by 
the oil pressure calculation process of shift 
change control.

TRGT PRES L/B

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of low 
brake solenoid valve calculated by the oil pres-
sure calculation process of shift change control.

TRGT PRE FR/B

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of front 
brake solenoid valve calculated by the oil pres-
sure calculation process of shift change control.

TRG PRE HLR/C

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of high 
and low reverse clutch solenoid valve calculat-
ed by the oil pressure calculation process of 
shift change control.

TRGT PRES I/C

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of input 
clutch solenoid valve calculated by the oil pres-
sure calculation process of shift change control.

TRGT PRES D/C

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of direct 
clutch solenoid valve calculated by the oil pres-
sure calculation process of shift change control.

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 

ITEM

TM-64

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

DIAGNOSIS SYSTEM (TCM)

TRG PRE 2346/B

(kPa, kg/cm

2

 or psi)

—

—

Displays the target oil pressure value of 2346 
brake solenoid valve calculated by the oil pres-
sure calculation process of shift change control.

SHIFT PATTERN

—

—

Displays the gear change data using the shift 
pattern control.

VEHICLE SPEED

(km/h or mph)

—

—

Displays the vehicle speed for control using the 
control of TCM.

G SEN SLOPE

(%)

X

—

Displays the inclination angle calculated by the 
G sensor signal received via CAN communica-
tion.

RANGE SW 4

(ON/OFF)

X

—

Displays the operation status of transmission 
range switch 4.

RANGE SW 3

(ON/OFF)

X

—

Displays the operation status of transmission 
range switch 3.

RANGE SW 2

(ON/OFF)

X

—

Displays the operation status of transmission 
range switch 2.

RANGE SW 1

(ON/OFF)

X

—

Displays the operation status of transmission 
range switch 1.

SFT DWN ST SW

(ON/OFF)

X

—

• Displays the operation status of paddle 

shifter (down switch).

• Not mounted but displayed.

SFT UP ST SW

(ON/OFF)

X

—

• Displays the operation status of paddle 

shifter (up switch).

• Not mounted but displayed.

DOWN SW LEVER

(ON/OFF)

X

—

Displays the operation status of selector lever 
(down switch).

UP SW LEVER

(ON/OFF)

X

—

Displays the operation status of selector lever 
(up switch).

NON M-MODE SW

(ON/OFF)

X

—

Displays whether the selector lever is in any po-
sition other than manual shift gate position.

MANU MODE SW

(ON/OFF)

X

—

Displays whether the selector lever is in the 
manual shift gate position.

TOW MODE SW

(ON/OFF)

—

—

Displays the reception status of tow mode 
switch signal received via CAN communication.

DS RANGE

(ON/OFF)

—

—

• Displays whether it is the DS mode.
• Not mounted but displayed.

1 POSITION SW

(ON/OFF)

X

—

• Displays the reception status of 1 position 

switch signal received via CAN communica-
tion.

• Not mounted but displayed.

OD CONT SW

(ON/OFF)

X

—

• Displays the reception status of overdrive 

control switch signal received via CAN com-
munication.

• Not mounted but displayed.

BRAKESW

(ON/OFF)

X

—

Displays the reception status of stop lamp 
switch signal received via CAN communication.

POWERSHIFT SW

(ON/OFF)

X

—

• Displays the reception status of POWER 

mode signal received via CAN communica-
tion.

• Not mounted but displayed.

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 

ITEM