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Nissan Pathfinder (2005 year). Manual - part 14

TROUBLE DIAGNOSIS

AT-83

2005 Pathfinder

TCM Input/Output Signal Reference Values

UCS00327

A/T ASSEMBLY HARNESS CONNECTOR TERMINAL LAYOUT

TCM INSPECTION TABLE

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

SCIA1658E

Terminal

No.

Wire

color

Item

Condition

Data (Approx.)

R/B

Power supply
(Memory back-up)

Always

Battery voltage

R/B

Power supply
(Memory back-up)

Always

Battery voltage

CAN H

–

K-line (CONSULT-
II signal)

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

–

Ground

Always

W/G

Power supply

–

Battery voltage

–

Back-up lamp
relay

Selector lever in “R” position.

Selector lever in other positions.

Battery voltage

CAN L

–

Starter relay

Selector lever in “N”,“ P” positions.

Battery voltage

Selector lever in other positions.

Ground

Always

AT-84

TROUBLE DIAGNOSIS

2005 Pathfinder

CONSULT-II Function (A/T)

UCS00328

FUNCTION

CONSULT-II REFERENCE VALUE

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.

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.

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).

Diagnostic test mode

Function

Reference page

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

AT-87

Data monitor

Input/Output data in the ECM can be read.

AT-90

CAN diagnostic support
monitor

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

AT-95

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-95

ECU part number

ECU part number can be read.

—

Item name

Condition

Display value (Approx.)

ATF TEMP SE 1

C (32

F) - 20

C (68

F) - 80

C (176

2.2 - 1.8 - 0.6 V

ATF TEMP SE 2

2.2 - 1.7 - 0.45 V

TCC SOLENOID

When perform slip lock-up

0.2 - 0.4 A

When perform lock-up

0.4 - 0.6 A

SLCT LVR POSI

Selector lever in “N”,“P” positions.

N/P

Selector lever in “R” position.

Selector lever in “D” position.

Selector lever in “3” position.

Selector lever in “2” position.

Selector lever in “1” position.

VHCL/S SE·A/T

During driving

Approximately matches the
speedometer reading.

ENGINE SPEED

Engine running

Closely matches the tachometer
reading.

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
speedometer reading.

ATF PRES SW 1

Front brake engaged. Refer to

AT-19

Front brake disengaged. Refer to

AT-19

OFF

ATF PRES SW 2

Low coast brake engaged. Refer to

AT-19

Low coast brake disengaged. Refer to

AT-19

OFF

TROUBLE DIAGNOSIS

AT-85

2005 Pathfinder

ATF PRES SW 3

Input clutch engaged. Refer to

AT-19

Input clutch disengaged. Refer to

AT-19

OFF

ATF PRES SW 5

Direct clutch engaged. Refer to

AT-19

Direct clutch disengaged. Refer to

AT-19

OFF

ATF PRES SW 6

High and low reverse clutch engaged. Refer to

AT-19

High and low reverse clutch disengaged. Refer to

AT-19

OFF

I/C SOLENOID

Input clutch disengaged. Refer to

AT-19

0.6 - 0.8 A

Input clutch engaged. Refer to

AT-19

0 - 0.05 A

FR/B SOLENOID

Front brake engaged. Refer to

AT-19

0.6 - 0.8 A

Front brake disengaged. Refer to

AT-19

0 - 0.05 A

D/C SOLENOID

Direct clutch disengaged. Refer to

AT-19

0.6 - 0.8 A

Direct clutch engaged. Refer to

AT-19

0 - 0.05 A

HLR/C SOL

High and low reverse clutch disengaged. Refer to

AT-19

0.6 - 0.8 A

High and low reverse clutch engaged. Refer to

AT-19

0 - 0.05 A

ON OFF SOL

Low coast brake engaged. Refer to

AT-19

Low coast brake disengaged. Refer to

AT-19

OFF

STARTER RELAY

Selector lever in “N”,“P” positions.

Selector lever in other position.

OFF

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

THROTTLE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

CLSD THL POS

Released accelerator pedal.

Fully depressed accelerator pedal.

OFF

W/O THL POS

Fully depressed accelerator pedal.

Released accelerator pedal.

OFF

OD CONT SW

Releasing overdrive control switch

OFF

Holding overdrive control switch

BRAKE SW

Depressed brake pedal.

Released brake pedal.

OFF

Item name

Condition

Display value (Approx.)

AT-86

TROUBLE DIAGNOSIS

2005 Pathfinder

CONSULT-II SETTING PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

●

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

Turn ignition switch “OFF”.

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

Turn ignition switch “ON”. (Do not start engine.)

Touch “START (NISSAN BASED VHCL)”.

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

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

Perform each diagnostic test mode according to each service
procedure.

BBIA0369E

BCIA0029E

BCIA0030E

TROUBLE DIAGNOSIS

AT-87

2005 Pathfinder

SELF-DIAGNOSTIC RESULT MODE
Operation Procedure

After performing

AT-87, "SELF-DIAGNOSTIC RESULT MODE"

, place check marks for results on the

AT-45,

"DIAGNOSTIC WORKSHEET"

. Reference pages are provided following the items.

Perform

AT-86, "CONSULT-II SETTING PROCEDURE"

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

Display Items List

X: Applicable, —: Not applicable

BCIA0031E

Items (CONSULT-II

screen terms)

Malfunction is detected when...

TCM self-

diagnosis

OBD-II (DTC)

Reference

page

“A/T” with

CONSULT-II

MIL indicator

lamp*1,

“ENGINE” with

CONSULT-II or

GST

CAN COMM CIRCUIT

●

When a malfunction is detected in CAN communica-
tions

U1000

AT-100

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.)

P0615

—

AT-103

TCM

●

TCM is malfunctioning.

P0700

AT-107

PNP SW/CIRC

●

PNP switch 1-4 signals input with impossible pattern

●

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

P0705

AT-108

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

P0720

AT-112

ENGINE SPEED SIG

●

TCM does not receive the CAN communication sig-
nal from the ECM.

P0725

—

AT-117

TCC SOLENOID/CIRC

●

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

P0740

AT-119

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

P0744*2

AT-121

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-123

TCM·RAM

●

TCM memory (RAM) is malfunctioning.

P1702

—

AT-125

TCM·ROM

●

TCM memory (ROM) is malfunctioning.

P1703

—

AT-125

AT-88

TROUBLE DIAGNOSIS

2005 Pathfinder

TP SEN/CIRC A/T

●

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

P1705

—

AT-127

ATF TEMP SEN/CIRC

●

During running, the ATF temperature sensor signal

voltage is excessively high or low

P1710

P0710

AT-130

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.

P1716

AT-135

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 com-
parative judgement made.

P1730

AT-139

A/T 1ST E/BRAKING

●

Each ATF pressure switch and solenoid current is
monitored and if a pattern is detected having engine
braking 1st gear other than in the “1” position, a mal-
function is detected.

P1731

—

AT-142

I/C SOLENOID/CIRC

●

Normal voltage not applied to solenoid due to func-
tional malfunction, cut line, short, or the like

●

TCM detects as irregular by comparing target value
with monitor value.

P1752

AT-144

I/C SOLENOID FNCTN

●

TCM detects that actual gear ratio is irregular, and
relation between gear position and condition of ATF
pressure switch 3 is irregular during depressing
accelerator pedal. (Other than during shift change)

●

TCM detects that relation between gear position and
condition of ATF pressure switch 3 is irregular during
releasing accelerator pedal. (Other than during shift
change)

P1754

P1754*2

AT-146

FR/B SOLENOID/CIRC

●

Normal voltage not applied to solenoid due to func-
tional malfunction, cut line, short, or the like

●

TCM detects as irregular by comparing target value
with monitor value.

P1757

AT-148

FR/B SOLENOID
FNCT

●

TCM detects that actual gear ratio is irregular, and
relation between gear position and condition of ATF
pressure switch 1 is irregular during depressing
accelerator pedal. (Other than during shift change)

●

TCM detects that relation between gear position and
condition of ATF pressure switch 1 is irregular during
releasing accelerator pedal. (Other than during shift
change)

P1759

P1759*2

AT-150

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-152

Items (CONSULT-II

screen terms)

Malfunction is detected when...

TCM self-

diagnosis

OBD-II (DTC)

Reference

page

“A/T” with

CONSULT-II

MIL indicator

lamp*1,

“ENGINE” with

CONSULT-II or

GST

TROUBLE DIAGNOSIS

AT-89

2005 Pathfinder

*1: Refer to

AT-40, "Malfunction Indicator Lamp (MIL)"

*2:These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.

D/C SOLENOID
FNCTN

●

TCM detects that actual gear ratio is irregular, and
relation between gear position and condition of ATF
pressure switch 5 is irregular during depressing
accelerator pedal. (Other than during shift change)

●

TCM detects that relation between gear position and
condition of ATF pressure switch 5 is irregular during
releasing accelerator pedal. (Other than during shift
change)

P1764

P1764*2

AT-154

HLR/C SOL/CIRC

●

Normal voltage not applied to solenoid due to func-
tional malfunction, cut line, short, or the like

●

TCM detects as irregular by comparing target value
with monitor value.

P1767

AT-156

HLR/C SOL FNCTN

●

TCM detects that actual gear ratio is irregular, and
relation between gear position and condition of ATF
pressure switch 6 is irregular during depressing
accelerator pedal. (Other than during shift change)

●

TCM detects that relation between gear position and
condition of ATF pressure switch 6 is irregular during
releasing accelerator pedal. (Other than during shift
change)

P1769

P1769*2

AT-158

LC/B SOLENOID/CIRC

●

Normal voltage not applied to solenoid due to func-
tional malfunction, cut line, short, or the like

P1772

AT-160

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 irregular.

P1774

P1774*2

AT-162

ATF PRES SW 1/CIRC

●

TCM detects that actual gear ratio is normal, and
relation between gear position and condition of ATF
pressure switch 1 is irregular during depressing
accelerator pedal. (Other than during shift change)

P1841

—

AT-164

ATF PRES SW 3/CIRC

●

TCM detects that actual gear ratio is normal, and
relation between gear position and condition of ATF
pressure switch 3 is irregular during depressing
accelerator pedal. (Other than during shift change)

P1843

—

AT-166

ATF PRES SW 5/CIRC

●

TCM detects that actual gear ratio is normal, and
relation between gear position and condition of ATF
pressure switch 5 is irregular during depressing
accelerator pedal. (Other than during shift change)

P1845

—

AT-168

ATF PRES SW 6/CIRC

●

TCM detects that actual gear ratio is normal, and
relation between gear position and condition of ATF
pressure switch 6 is irregular during depressing
accelerator pedal. (Other than during shift change)

P1846

—

AT-170

NO DTC IS
DETECTED FUR-
THER TESTING MAY
BE REQUIRED

●

No NG item has been detected.

—

Items (CONSULT-II

screen terms)

Malfunction is detected when...

TCM self-

diagnosis

OBD-II (DTC)

Reference

page

“A/T” with

CONSULT-II

MIL indicator

lamp*1,

“ENGINE” with

CONSULT-II or

GST

AT-90

TROUBLE DIAGNOSIS

2005 Pathfinder

How to Erase Self-diagnostic Results

Perform

AT-86, "CONSULT-II SETTING PROCEDURE"

Touch “SELF-DIAG RESULTS”.

Touch ”ERASE”. (The self-diagnostic results will be erased.)

DATA MONITOR MODE
Operation Procedure

Perform

AT-86, "CONSULT-II SETTING PROCEDURE"

Touch “DATA MONITOR”.

NOTE:
When

malfunction

detected,

CONSULT-II

performs

“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.

Display Items List

X: Standard, —: Not applicable,

: Option

BCIA0031E

PCIA0061E

BCIA0031E

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION

FROM
MENU

VHCL/S SE·A/T (km/h)

Revolution sensor

VHCL/S SE·MTR (km/h)

—

ACCELE POSI (0.0/8)

—

Accelerator pedal position signal

THROTTLE POSI (0.0/8)

Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.

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