Infiniti M45 (Y34). Manual - part 51

TROUBLE DIAGNOSIS

AT-89

D

E

F

G

H

I

J

K

L

M

A

B

AT

CONSULT-II

ACS004I1

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (Refer to 

AT-92

 ), place check

marks for results on the 

AT-47, "DIAGNOSTIC WORKSHEET"

 . Reference pages are provided following the

items.

NOTICE:
1.

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

2.

Shift schedule (which implies gear position) displayed on CONSULT-II 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-II indicates the point where shifts are completed.

3.

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

4.

Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.

FUNCTION

CONSULT-II REFERENCE VALUE

Diagnostic test mode

Function

Reference page

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

AT-92

Data monitor

Input/Output data in the ECM can be read.

AT-95

CAN diagnostic support 
monitor

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

—

Function test

Conducted by CONSULT-II 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.

AT-98

ECM (ECU,TCM) part 
number

ECM (ECU,TCM) part number can be read.

—

Item name

Condition 

Display value (Approx.)

VHCL/S SE·A/T

During driving

Approximately matches the speedometer 
reading.

VHCL/S SE·MTR

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

CLSO THL POS

Released accelerator pedal.

ON

Fully depressed accelerator pedal.

OFF

W/O THL POS

Fully depressed accelerator pedal.

ON

Released accelerator pedal.

OFF

BRAKE SW

Depressed brake pedal.

ON

Released brake pedal.

OFF

GEAR

During driving

1, 2, 3, 4, 5

ENGINE SPEED

Engine running

Closely matches the tachometer reading.

TURBINE REV

During driving (lock-up ON)

Approximately matches the engine speed.

OUTPUT REV

During driving

Approximately matches the output shaft 
speed.

ATF TEMP SE 1

0

°

C (32

°

 F) - 20

°

C (68

°

F) - 80

°

C (176

°

F)

3.2 - 2.5 - 0.8 V

ATF TEMP SE 2

3.2 - 2.4 - 0.65 V

AT-90

TROUBLE DIAGNOSIS

BATTERY VOLT (V)

When turning ignition switch to ON.

Battery voltage

ATF PRES SW 1

Front brake solenoid valve operates. 

ON

Other conditions

OFF

ATF PRES SW 2

Low coast brake solenoid valve operates.

ON

Other conditions

OFF

ATF PRES SW 3

Input clutch solenoid valve operates. 

OFF

Other conditions

ON

ATF PRES SW 5

Direct clutch solenoid valve operates. 

OFF

Other conditions

ON

ATF PRES SW 6

High and low reverse clutch solenoid valve 
operates. 

OFF

Other conditions

ON

PNP SW 1

When setting selector lever to “P” position.

OFF

When setting selector lever to “N” position.

ON

PNP SW 2

When setting selector lever to “P” position.

OFF

When setting selector lever to “D” position.

ON

PNP SW 3

When setting selector lever to “D” position.

OFF

When setting selector lever to “R” position.

ON

PNP SW 4

When setting selector lever to “P” position.

OFF

When setting selector lever to “R” position.

ON

SLCT LVR POSI

When setting selector lever to “N” or “P” posi-
tion.

N · P

When setting selector lever to “R” position.

R

When setting selector lever to “D” position.

D

MANU MODE SW

Manual shift gate position (neutral)

ON

Other than the above

OFF

NON M-MODE SW

Manual shift gate position

OFF

Other than the above

ON

UP SW LEVER

Select lever: + side

ON

Other than the above

OFF

DOWN SW LEVER

Select lever: - side

ON

Other than the above

OFF

TCC SOLENOID

When perform slip lock-up

0.2 - 0.4 A

When perform lock-up

0.4 - 0.6 A

LINE PRES SOL

During driving

0.2 - 0.6 A

FR/B SOLENOID

Front brake solenoid valve operates. 

0.6 - 0.8 A

Other conditions

0 - 0.05 A

I/C SOLENOID

Input clutch solenoid valve operates. 

0.6 - 0.8 A

Other conditions

0 - 0.05 A

D/C SOLENOID

Direct clutch solenoid valve operates. 

0.6 - 0.8 A

Other conditions

0 - 0.05 A

HLR/C SOL

High and low reverse clutch solenoid valve 
operates. 

0.6 - 0.8 A

Other conditions

0 - 0.05 A

Item name

Condition 

Display value (Approx.)

TROUBLE DIAGNOSIS

AT-91

D

E

F

G

H

I

J

K

L

M

A

B

AT

CONSULT-II SETTING PROCEDURE

●

For details, refer to the separate “CONSULT-II Operations Man-
ual”.

1.

Turn ignition switch OFF.

2.

Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector, which is located in instrument lower panel on
driver side.

3.

Turn ignition switch ON.

4.

Touch “START (NISSAN BASED VHCL)”. 

5.

Touch “A/T”.
If “A/T” is not indicated, go to 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

6.

Perform each diagnostic test mode according to each service
procedure.

ON OFF SOL

Low coast brake solenoid valve operates.

ON

Other conditions

OFF

STARTER RELAY

Selector lever in “N”, “P” positions.

ON

Selector lever in other positions.

OFF

VEHICLE SPEED

During driving

Approximately matches the speedometer 
reading.

Item name

Condition 

Display value (Approx.)

PBIB0196E

SAIA0450E

SAT014K

AT-92

TROUBLE DIAGNOSIS

SELF-DIAGNOSTIC RESULT MODE
Operation Procedure

1.

Perform “CONSULT-II SETTING PROCEDURE”. Refer to 

AT-91, "CONSULT-II SETTING PROCEDURE"

.

2.

Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.

Display Items List

X: Applicable

—: Not applicable

SCIA5304E

Items (CONSULT-

II screen terms)

Malfunction is detected when...

TCM self-diagnosis

OBD-II (DTC)

A/T CHECK    

indicator 

lamp 

 “A/T” with   

CONSULT-II

MIL indicator 

lamp*1, 

“ENGINE” with 

CONSULT-II or 

GST

CAN COMM CIR-
CUIT

●

When a malfunction is detected in CAN communications

X

U1000

U1000

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 malfunction.)

X

P0615

—

PNP SW/CIRC

●

PNP switch 1-4 signals input with impossible pattern

●

PNP switch 3 monitor terminal cut line

●

P position is detected from “ N” position without any other 
position being detected in between.

X

P0705

P0705

VEH SPD SEN/
CIR AT (Revolution 
sensor)

●

Signal from vehicle speed sensor A/T (Revolution sensor) 
not input 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

X

P0720

P0720

ENGINE SPEED 
SIG

●

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

X

P0725

—

TCC SOLENOID/
CIRC

●

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

X

P0740

P0740

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.

X

P0744

P0744*2

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.

X

P0745

P0745