Content .. 37 38 39 40 ..

Infiniti FX35 / FX45. Manual - part 39

AT-84

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

Data are reference value and are measured between each terminal and ground.

CONSULT-III Function (TRANSMISSION)

INFOID:0000000001327163

CONSULT-III can display each diagnostic item using the diagnostic test models shown following.

FUNCTION

CONSULT-III REFERENCE VALUE

NOTICE:
1.

The CONSULT-III electrically displays shift timing and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timing and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.

Shift schedule (which implies gear position) displayed on CONSULT-III and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:

Actual shift schedule has more or less tolerance or allowance,

Shift schedule indicated in Service Manual refers to the point where shifts start, and

Gear position displayed on CONSULT-III indicates the point where shifts are completed.

Terminal

Wire

color

Item

Condition

Data (Approx.)

Power supply
(Memory back-up)

Always

Battery voltage

Power supply
(Memory back-up)

Always

Battery voltage

CAN-H

–

K-line (CONSULT-
III signal)

The terminal is connected to the data link connector for CONSULT-III.

–

Ground

–

Power supply

–

Battery voltage

–

0 V

Back-up lamp re-
lay

Selector lever in “R” position.

0 V

Selector lever in other positions.

Battery voltage

CAN-L

–

Starter relay

Selector lever in “N” and “P” positions.

Battery voltage

Selector lever in other positions.

0 V

Ground

–

Diagnostic test mode

Function

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on CONSULT-III.

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

Data monitor

Input/Output data in the ECU can be read.

CAN diagnostic support mon-
itor

The results of transmit/receive diagnosis of CAN communication can be read.

Function test

Performed by CONSULT-III instead of a technician to determine whether each system is “OK” or “NG”.

DTC work support

Select the operating condition to confirm Diagnosis Trouble Codes.

ECU part number

TCM part number can be read.

TROUBLE DIAGNOSIS

AT-85

< SERVICE INFORMATION >

Display of solenoid valves on CONSULT-III changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).

Item name

Condition

Display value (Approx.)

ATF TEMP SE 1

C (32

−

C (68

−

C (176

3.3

−

2.7

−

0.9 V

ATF TEMP SE 2

3.3

−

2.5

−

0.7 V

ATF TEMP 1

Ignition switch ON

Measured ATF temperature is dis-
played.

TCC SOLENOID

Lock-up is active

0.4

−

0.6 A

SLCT LVR POSI

Selector lever in “N” and “P” positions.

N/P

Selector lever in “R” position.

Selector lever in “D” position.

VHCL/S SE-A/T

During driving

Approximately matches the speedom-
eter reading.

VEHICLE SPEED

During driving

Approximately matches the speedom-
eter reading.

ENGINE SPEED

Engine running

Closely matches the tachometer read-
ing.

LINE PRES SOL

During driving

0.2

−

0.6 A

TURBINE REV

During driving (lock-up ON)

Approximately matches the engine
speed.

VHCL/S SE-MTR

During driving

Approximately matches the speedom-
eter reading.

ATF PRES SW 2

Low coast brake engaged. Refer to

AT-18

Low coast brake disengaged. Refer to

AT-18

. OFF

I/C SOLENOID

Input clutch disengaged. Refer to

AT-18

0.6

−

0.8 A

Input clutch engaged. Refer to

AT-18

−

0.05 A

FR/B SOLENOID

Front brake engaged. Refer to

AT-18

0.6

−

0.8 A

Front brake disengaged. Refer to

AT-18

. 0

−

0.05 A

D/C SOLENOID

Direct clutch disengaged. Refer to

AT-18

0.6

−

0.8 A

Direct clutch engaged. Refer to

AT-18

−

0.05 A

HLR/C SOL

High and low reverse clutch disengaged. Refer to

AT-18

0.6

−

0.8 A

High and low reverse clutch engaged. Refer to

AT-18

−

0.05 A

ON OFF SOL

Low coast brake engaged. Refer to

AT-18

Low coast brake disengaged. Refer to

AT-18

OFF

MANU MODE SW

Manual shift gate position (neutral)

Other than the above

OFF

NON M-MODE SW

Manual shift gate position

OFF

Other than the above

UP SW LEVER

Selector lever: + side

Other than the above

OFF

DOWN SW LEVER

Selector lever: - side

Other than the above

OFF

STARTER RELAY

Selector lever in “N” and “P” positions.

Selector lever in other positions.

OFF

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8.0/8

AT-86

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

SELF-DIAGNOSTIC RESULT MODE

After performing “SELF-DIAGNOSTIC RESULT MODE”, place check marks for results on the

AT-42, "How to

Perform Trouble Diagnosis for Quick and Accurate Repair"

. Reference pages are provided following the items.

Display Items List

X: Applicable, —: Not applicable

CLSD THL POS

Released accelerator pedal.

Fully depressed accelerator pedal.

OFF

W/O THL POS

Fully depressed accelerator pedal.

Released accelerator pedal.

OFF

BRAKE SW

Depressed brake pedal.

ON.

Released brake pedal.

OFF

GEAR

During driving.

1,2,3,4,5,

Item name

Condition

Display value (Approx.)

Items (CONSULT-

III screen terms)

Malfunction is detected when...

TCM self-di-

agnosis

OBD-II

(DTC)

Reference

page

“TRANS-

MISSION”

with CON-

SULT-III

MIL indica-

tor lamp

(*1)

“ENGINE”

with CON-

SULT-III or

GST

CAN COMM CIR-
CUIT

When TCM is not transmitting or receiving CAN communication sig-
nal for 2 seconds or more.

U1000

AT-94

STARTER RELAY/
CIRC

If this signal is ON other than in “P” or “N” position, this is judged to
be a malfunction.
(And if it is OFF in “P” or “N” position, this too is judged to be a mal-
function.)

P0615

—

AT-97

TCM

TCM is malfunctioning.

P0700

AT-101

PNP SW/CIRC

• PNP switch 1-4 signals input with impossible pattern.
• “P” position is detected from “N” position without any other posi-

tion being detected in between.

P0705

AT-102

TURBINE REV S/
CIRC

• TCM does not receive the proper voltage signal from the sensor.
• TCM detects an irregularity only at position of 4th gear for turbine

revolution sensor 2.

P0717

AT-106

VEH SPD SEN/CIR
AT

• Signal from vehicle speed sensor A/T (Revolution sensor) not in-

put due to cut line or the like.

• Unexpected signal input during running.
• After ignition switch is turned ON, unexpected signal input from

vehicle speed sensor MTR before the vehicle starts moving.

P0720

AT-108

ENGINE SPEED
SIG

TCM does not receive the CAN communication signal from the
ECM.

P0725

AT-112

A/T 1ST GR
FNCTN

A/T cannot shift to 1st gear.

P0731

AT-114

A/T 2ND GR
FNCTN

A/T cannot shift to 2nd gear.

P0732

AT-116

A/T 3RD GR
FNCTN

A/T cannot shift to 3rd gear.

P0733

AT-118

A/T 4TH GR
FNCTN

A/T cannot shift to 4th gear.

P0734

AT-120

A/T 5TH GR
FNCTN

A/T cannot shift to 5th gear.

P0735

AT-122

TCC SOLENOID/
CIRC

Normal voltage not applied to solenoid due to cut line, short, or the
like.

P0740

AT-124

TROUBLE DIAGNOSIS

AT-87

< SERVICE INFORMATION >

*1: Refer to

EC-71, "Malfunction Indicator Lamp (MIL)"

(for VQ35DE engine) or

EC-649, "Malfunction Indicator Lamp (MIL)"

(for VK45DE

engine.)

A/T TCC S/V
FNCTN

• A/T cannot perform lock-up even if electrical circuit is good.
• TCM detects as irregular by comparing difference value with slip

rotation.

P0744

(*2)

AT-126

L/PRESS SOL/
CIRC

• Normal voltage not applied to solenoid due to cut line, short, or the

like.

• TCM detects as irregular by comparing target value with monitor

value.

P0745

AT-128

TP SEN/CIRC A/T

TCM does not receive the proper accelerator pedal position signals
(input by CAN communication) from ECM.

P1705

AT-130

ATF TEMP SEN/
CIRC

During running, the A/T fluid temperature sensor signal voltage is
excessively high or low.

P1710

P0710

AT-132

VEH SPD SE/CIR-
MTR

• Signal (CAN communication) from vehicle speed sensor MTR not

input due to cut line or the like.

• Unexpected signal input during running.

P1721

—

AT-137

A/T INTERLOCK

Except during shift change, the gear position and ATF pressure
switch states are monitored and comparative judgement made.

P1730

AT-139

A/T 1ST E/BRAK-
ING

Each ATF pressure switch and solenoid current is monitored and if
a pattern is detected having engine braking 1st gear other than in the
M1 position, a malfunction is detected.

P1731

—

AT-141

I/C SOLENOID/
CIRC

• Normal voltage not applied to solenoid due to functional malfunc-

tion, cut line, short, or the like.

• TCM detects as irregular by comparing target value with monitor

value.

P1752

AT-143

FR/B SOLENOID/
CIRC

• Normal voltage not applied to solenoid due to functional malfunc-

tion, cut line, short, or the like.

• TCM detects as irregular by comparing target value with monitor

value.

P1757

AT-145

D/C SOLENOID/
CIRC

• Normal voltage not applied to solenoid due to cut line, short, or the

like.

• TCM detects as irregular by comparing target value with monitor

value.

P1762

AT-147

HLR/C SOL/CIRC

• Normal voltage not applied to solenoid due to functional malfunc-

tion, cut line, short, or the like.

• TCM detects as irregular by comparing target value with monitor

value.

P1767

AT-149

LC/B SOLENOID/
CIRC

Normal voltage not applied to solenoid due to functional malfunction,
cut line, short, or the like.

P1772

AT-151

LC/B SOLENOID
FNCT

• TCM detects an improper voltage drop when it tries to operate the

solenoid valve.

• Condition of ATF pressure switch 2 is different from monitor value,

and relation between gear position and actual gear ratio is irregu-
lar.

P1774

(*2)

AT-153

MANU MODE SW/
CIRC

When an impossible pattern of switch signals is detected, a malfunc-
tion is detected.

P1815

—

AT-155

NO DTC IS DE-
TECTED FUR-
THER TESTING
MAY BE RE-
QUIRED

No NG item has been detected.

—

Items (CONSULT-

III screen terms)

Malfunction is detected when...

TCM self-di-

agnosis

OBD-II

(DTC)

Reference

page

“TRANS-

MISSION”

with CON-

SULT-III

MIL indica-

tor lamp

(*1)

“ENGINE”

with CON-

SULT-III or

GST

Content .. 37 38 39 40 ..