Nissan Pathfinder (2008 year). Instruction - part 189

 

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Nissan Pathfinder (2008 year). Instruction - part 189

 

 

DLN-96

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

TRANSFER CONTROL UNIT

ALDIA0062GB

TRANSFER CONTROL UNIT

DLN-97

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

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ALDIA0063GB

DLN-98

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

TRANSFER CONTROL UNIT

ALDIA0064GB

TRANSFER CONTROL UNIT

DLN-99

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

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ALDIA0065GB

DLN-100

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

TRANSFER CONTROL UNIT

ALDIA0129GB

TRANSFER CONTROL UNIT

DLN-101

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

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DTC Index

INFOID:0000000001728418

DTC CHART

ALDIA0130GB

DLN-102

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

TRANSFER CONTROL UNIT

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[P1802]

CONTROL UNIT 1

Malfunction is detected in the memory (RAM) sys-
tem of transfer control unit.

Refer to 

DLN-27

.

[P1803]

CONTROL UNIT 2

Malfunction is detected in the memory (ROM) sys-
tem of transfer control unit.

[P1804]

CONTROL UNIT 3

Malfunction is detected in the memory (EEPROM) 
system of transfer control unit.

[P1807]

VHCL SPEED SEN·AT

• Malfunction is detected in output shaft revolution 

signal that is output from TCM through CAN com-
munication.

• Improper signal is input while driving.

Refer to 

DLN-29

.

[P1808]

VHCL SPEED SEN·ABS

• Malfunction is detected in vehicle speed signal 

that is output from ABS actuator and electric unit 
(control unit) through CAN communication.

• Improper signal is input while driving.

Refer to 

DLN-30

.

[P1809]

CONTROL UNIT 4

AD converter system of transfer control unit is mal-
functioning.

Refer to 

DLN-27

.

[P1810]

4L POSI SW TF

Improper signal from neutral-4LO switch is input due 
to open or short circuit.

Refer to 

DLN-31

.

[P1811]

BATTERY VOLTAGE

Power supply voltage for transfer control unit is ab-
normally low while driving.

Refer to 

DLN-25

.

[P1813]

4WD MODE SW

More than two switch inputs are simultaneously de-
tected due to short circuit of 4WD shift switch.

Refer to 

DLN-34

.

[P1814]

4WD DETECT SWITCH

Improper signal from wait detection switch is input 
due to open or short circuit.

Refer to 

DLN-38

.

[P1816]

PNP SW/CIRC

When A/T PNP switch signal is malfunction or com-
munication error between the control units.

Refer to 

DLN-41

.

[P1817]

SHIFT ACTUATOR

• Motor does not operate properly due to open or 

short circuit in actuator motor.

• Malfunction is detected in the actuator motor. 

(When 4WD shift switch is operated and actuator 
motor is not operated)

• Malfunction is detected in transfer shift high relay 

and transfer shift low relay.

Refer to 

DLN-42

.

[P1818]

SHIFT ACT POSI SW

• Improper signal from actuator position switch is in-

put due to open or short circuit.

• Malfunction is detected in the actuator position 

switch.

Refer to 

DLN-48

.

[P1819]

SHIFT ACT CIR

• Transfer control device actuator circuit is shorted 

or open. (Malfunctions are detected when transfer 
shift relay circuit is open/shorted or relay monitor 
circuit is open/shorted.)

• Malfunction occurs in transfer control device drive 

circuit.

• Malfunction is detected in transfer shut off relay.

Refer to 

DLN-51

.

[P1820]

ENGINE SPEED SIG

• Malfunction is detected in engine speed signal 

that is output from ECM through CAN communi-
cation. 

• Improper signal is input while driving.

Refer to 

DLN-55

.

[P1822]

DUTY SOLENOID

Proper voltage is not applied to clutch pressure so-
lenoid valve due to open or short circuit.

Refer to 

DLN-56

.

[P1823]

2-4WD SOLENOID

Proper voltage is not applied to 2-4WD solenoid 
valve due to open or short circuit.

Refer to 

DLN-60

.

[P1824]

MOTOR RELAY

Motor does not operate properly due to open or 
short circuit in transfer motor or transfer motor relay.

Refer to 

DLN-64

.

TRANSFER CONTROL UNIT

DLN-103

< ECU DIAGNOSIS >

[TRANSFER: ATX14B]

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CAUTION:

• If CAN COMM CIRCUIT [U1000] is displayed with other DTCs, first perform the trouble diagnosis for CAN communication

line.

• If ABS OP SIG [P1830], VDC OP SIG [P1831] or TCS OP SIG [P1832] is displayed, first perform the trouble diagnosis for ABS

system.

• If VHCL SPEED SEN·AT [P1807] is displayed, first perform the trouble diagnosis for A/T system.

NOTE:

• If SHIFT ACT POSI SW [P1818] or SHIFT ACT CIR [P1819] is displayed, first erase self-diagnostic results. (SHIFT ACT POSI SW

[P1818] or SHIFT ACT CIR [P1819] may be displayed after installing transfer control unit or transfer assembly.)

• If CL PRES SW [P1827] or LINE PRES SW [P1828] is displayed only while driving in reverse, check the continuity of R position on A/

T PNP switch. When there is no malfunction found in the electrical system, check the hydraulic system.

FLASH CODE CHART

[P1826]

OIL TEMP SEN

Signal voltage from transfer fluid temperature sen-
sor is abnormally high (Transfer fluid temperature is 
abnormally low) while driving.

Refer to 

DLN-70

.

[P1827]

CLUTCH PRES SW

• Improper signal from clutch pressure switch is in-

put due to open or short circuit.

• Malfunction occurs in clutch pressure switch or 

hydraulic circuit.

Refer to 

DLN-73

.

[P1828]

LINE PRES SW

• Improper signal from line pressure switch is input 

due to open or short circuit.

• Malfunction occurs in line pressure switch or hy-

draulic circuit.

Refer to 

DLN-76

.

[P1829]

THROTTLE POSI SEN

• Malfunction is detected in accelerator pedal posi-

tion signal that is output from ECM through CAN 
communication.

• Signal voltage from accelerator pedal position 

sensor is abnormally high or low.

Refer to 

DLN-79

.

[P1830]

ABS OP SIG

Malfunction is detected in ABS operation signal that 
is output from ABS actuator and electric unit (control 
unit) through CAN communication.

Refer to 

DLN-80

.

[P1831]

VDC OP SIG

Malfunction is detected in VDC operation signal that 
is output from ABS actuator and electric unit (control 
unit) through CAN communication.

Refer to 

DLN-81

.

[P1832]

TCS OP SIG

Malfunction is detected in TCS operation signal that 
is output from ABS actuator and electric unit (control 
unit) through CAN communication.

Refer to 

DLN-82

.

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

Flashing pattern

Item

Diagnostic item is detected when...

Reference

2

Vehicle speed signal 
(from A/T)

• Malfunction is detected in output shaft revolution signal 

that is output from TCM through CAN communication.

• Improper signal is input while driving.

Refer to 

DLN-29

.

3

Clutch pressure sole-
noid signal

Proper voltage is not applied to clutch pressure solenoid 
valve due to open or short circuit.

Refer to 

DLN-56

.

4

2-4WD solenoid signal

Proper voltage is not applied to 2-4WD solenoid valve due 
to open or short circuit.

Refer to 

DLN-60

.

5

Transfer motor

Transfer motor does not operate properly due to open or 
short circuit in transfer motor or transfer motor relay.

Refer to 

DLN-64

.

6

Vehicle speed signal 
(from ABS)

• Malfunction is detected in vehicle speed signal that is out-

put from ABS actuator and electric unit (control unit) 
through CAN communication.

• Improper signal is input while driving.

Refer to 

DLN-30

.

7

CAN communication

Malfunction has been detected from CAN communication 
line.

Refer to 

DLN-19

8

AD converter

AD converter system of transfer control unit is malfunction-
ing.

Refer to 

DLN-27

.

 

 

 

 

 

 

 

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