Nissan Pathfinder (2007 year). Manual — part 395
TROUBLE DIAGNOSIS
TF-41
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
TF
2007 Pathfinder
ATP IND [ON/OFF]
Condition of ATP indica-
tor lamp
ATP indicator lamp: ON
ON
ATP indicator lamp: OFF
OFF
SHIFT POS SW1 [ON/
OFF]
Condition of actuator
position switch 1
(Low)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4LO
ON
4WD shift switch: 2WD,
AUTO or 4H
OFF
SHIFT POS SW2 [ON/
OFF]
Condition of actuator
position switch 2
(High)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4H,
AUTO or 2WD
ON
4WD shift switch: 4LO
OFF
SHIFT ACT1 [ON/OFF]
Output condition to actu-
ator motor (High)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4H to
4LO (“Wait” function is
operating.)
ON
Except the above
OFF
SHIFT AC MON1 [ON/
OFF]
Check signal for transfer
control unit signal output
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4H to
4LO (“Wait” function is
operating.)
ON
Except the above
OFF
SHIFT ACT2 [ON/OFF]
Output condition to actu-
ator motor (Low)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4LO to
4H (“Wait” function is
operating.)
ON
Except the above
OFF
SHIFT AC MON2 [ON/
OFF]
Check signal for transfer
control unit signal output
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4LO to
4H (“Wait” function is
operating.)
ON
Except the above
OFF
T/F F SPEED [km/h] or
[mph]
Displayed, but do not use.
A/T R SPEED [km/h] or
[mph]
Condition of vehicle
speed sensor A/T (Revo-
lution sensor)
During driving
Approximately
matches the out-
put shaft speed.
AT GEAR POSI [1/2/3/4/
5]
Condition of A/T selec-
tor lever position
Displays actual A/T gear position.
1
2
3
4
5
Monitored item [Unit]
Content
Condition
Display value
TF-42
[ATX14B]
TROUBLE DIAGNOSIS
2007 Pathfinder
Specifications Between Transfer Control Unit Terminals
TRANSFER CONTROL UNIT TERMINAL CONNECTOR LAYOUT
NOTE:
Data are reference value and are measured between each terminal and ground.
WDIA0384E
Terminal
Wire
color
Item
Condition
Data (Approx.)
1
GR
2-4WD shift solenoid valve
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO, 4H or 4LO
Battery voltage
2
V
4WD shift indicator lamp
(2WD indicator lamp)
2WD indicator lamp: OFF
Battery voltage
2WD indicator lamp: ON
0V
3
B
Ground
Always
0V
4
SB
Transfer shift high relay
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
5
GR
4WD warning lamp
4WD warning lamp: ON
0V
4WD warning lamp: OFF
Battery voltage
6
B
Ground
Always
0V
7
L
CAN-H
—
—
8
P
CAN-L
—
—
9
G
4WD shift switch
(2WD)
Ignition switch: ON
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO, 4H or 4LO
0V
10
P
Transfer dropping resistor
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: AUTO
4 - 14V
4WD shift switch: 2WD, 4H or 4LO
Less than 1V
11
BR
4WD shift indicator lamp
(Lock indicator lamp)
Lock indicator lamp of 4WD shift indicator lamp: OFF
Battery voltage
Lock indicator lamp of 4WD shift indicator lamp: ON
0V
12
O
4LO indicator lamp
4LO indicator lamp: OFF
Battery voltage
4LO indicator lamp: ON
0V
TROUBLE DIAGNOSIS
TF-43
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
TF
2007 Pathfinder
13
G
Transfer shift low relay
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
14
V
Transfer motor relay
●
Accelerator pedal
depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal
depressed
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO or 4LO (A/T
selector lever “P” or “N” position)
Battery voltage
(0V for approx.
2 sec. after
shifting to “P”
and “N”.)
4WD shift switch: AUTO or 4LO (Except
for A/T selector lever “P” or “N” position)
0V
4WD shift switch: 4H (A/T selector lever
“P” position)
Battery voltage
(0V for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T
selector lever “P” position)
0V
15
LG
ATP warning lamp
ATP indicator lamp: ON
0V
ATP indicator lamp: OFF
Battery voltage
16
Y
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
0V
18
O
4WD shift switch
(4H)
Ignition switch: ON
4WD shift switch: 4H
Battery voltage
4WD shift switch: 2WD, AUTO or 4LO
0V
19
R
Clutch pressure solenoid
valve
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: AUTO
1.5 - 3V
4WD shift switch: 2WD, 4H or 4LO
Less than 1V
21
B
4WD shift indicator lamp
(AUTO indicator lamp)
AUTO indicator lamp of 4WD shift indicator lamp: OFF
Battery voltage
AUTO indicator lamp of 4WD shift indicator lamp: ON
0V
22
GR
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
0V
23
W
4WD shift switch
(4LO)
Ignition switch: ON
4WD shift switch: 4LO
Battery voltage
4WD shift switch: 2WD, AUTO or 4H
0V
24
LG
4WD shift switch
(AUTO)
Ignition switch: ON
4WD shift switch: AUTO
Battery voltage
4WD shift switch: 2WD, 4H or 4LO
0V
25
Y
Neutral-4LO switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
4WD shift switch: 4H to 4LO (While actua-
tor motor is operating.)
Battery volt-
age
→
0V
4WD shift switch: 4LO to 4H (While actua-
tor motor is operating.)
0V
→
Battery
voltage
4WD shift switch: 4LO
0V
Terminal
Wire
color
Item
Condition
Data (Approx.)
TF-44
[ATX14B]
TROUBLE DIAGNOSIS
2007 Pathfinder
27
W
Actuator position switch 2
(High)
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4H, AUTO or 2WD
0V
4WD shift switch: 4LO
Battery voltage
28
P
Sensor ground
Always
0V
29
W/G
Ignition switch monitor
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0V
30
V
Shut off relay
Ignition switch: ON
0V
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
Battery voltage
31
G
Transfer fluid temperature
sensor
Ignition switch: ON
Transfer fluid temperature approx. 20
°
C
(68
°
F)
1.1V
Transfer fluid temperature approx. 80
°
C
(176
°
F)
0.3V
33
GR
Transfer shift high relay
monitor
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
34
BR
Clutch pressure switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“D” position
4WD shift switch: AUTO or 4H (“Wait”
function is not operating.)
0V
●
Vehicle stopped
●
Engine running
4WD shift switch: 2WD (“Wait” function is
not operating.)
Battery voltage
35
L
Line pressure switch
●
Ignition switch: ON
●
A/T selector lever “D” position
●
4WD shift switch: AUTO
0V
●
After the vehicle
has been left at
room temperature
for 5 minutes and
more with ignition
switch in “OFF”
position.
●
Ignition switch: ON
●
A/T selector lever: “P” or "N" position
●
4WD shift switch: other than AUTO
Battery voltage
40
R
ATP switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N”
●
Brake pedal
depressed
4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
0V
Except the above
Battery voltage
Terminal
Wire
color
Item
Condition
Data (Approx.)
TROUBLE DIAGNOSIS
TF-45
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
TF
2007 Pathfinder
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
41
SB
Transfer motor relay moni-
tor
●
Accelerator pedal
depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal
depressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO or 4LO (A/T
selector lever “P” or “N” position)
0V
(Battery volt-
age for approx.
2 sec. after
shifting to “P”
and “N”.)
4WD shift switch: AUTO or 4LO (Except
for A/T selector lever “P” or “N” position)
Battery voltage
4WD shift switch: 4H (A/T selector lever
“P” position)
0V
(Battery volt-
age for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T
selector lever “P” position)
Battery voltage
42
Y
Transfer shift low relay
monitor
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
43
O
Wait detection switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
4WD shift switch: 4H to 4LO (While actua-
tor motor is operating.)
Battery volt-
age
→
0V
4WD shift switch: 4LO to 4H (While actua-
tor motor is operating.)
0V
→
Battery
voltage
4WD shift switch: 4LO
0V
44
LG
Actuator position switch 1
(Low)
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4LO
0V
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
45
B
Ground
Always
0V
47
R
Power supply
(Memory back-up)
Ignition switch: ON
Battery voltage
Ignition switch: OFF
Battery voltage
Terminal
Wire
color
Item
Condition
Data (Approx.)
TF-46
[ATX14B]
TROUBLE DIAGNOSIS
2007 Pathfinder
CONSULT-II Function (ALL MODE AWD/4WD)
EDS0036C
FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to
GI-38, "CONSULT-II Start Procedure"
ALL MODE AWD/4WD diag-
nostic mode
Description
SELF-DIAG RESULTS
Displays transfer control unit self-diagnosis results.
DATA MONITOR
Displays transfer control unit input/output data in real time.
WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the transfer control unit for set-
ting the status suitable for required operation, input/output signals are received from the transfer con-
trol unit and received data is displayed.
CAN DIAG SUPPORT
MNTR
The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER
Transfer control unit part number can be read.
TROUBLE DIAGNOSIS
TF-47
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
TF
2007 Pathfinder
SELF-DIAG RESULT MODE
Operation Procedure
1.
Perform “CONSULT-II SETTING PROCEDURE”. Refer to
TF-46, "CONSULT-II START PROCEDURE"
2.
With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:
●
The details for “TIME” are as follow:
–
“0”: Error currently detected with transfer control unit.
–
Except for “0”: Error detected in the past and memorized
with transfer control unit.
Detects frequency of driving after DTC occurs (frequency
of turning ignition switch “ON/OFF”).
Display Item List
SDIA2687E
Items (CONSULT-II screen
terms)
Diagnostic item is detected when...
Check item
CONTROL UNIT 1
[P1802]
Malfunction is detected in the memory (RAM) system of transfer
control unit.
TF-59, "Transfer Control Unit"
CONTROL UNIT 2
[P1803]
Malfunction is detected in the memory (ROM) system of transfer
control unit.
TF-59, "Transfer Control Unit"
CONTROL UNIT 3
[P1804]
Malfunction is detected in the memory (EEPROM) system of trans-
fer control unit.
TF-59, "Transfer Control Unit"
VHCL SPEED SEN·AT
[P1807]
●
Malfunction is detected in output shaft revolution signal that is
output from TCM through CAN communication.
●
Improper signal is input while driving.
TF-60, "Output Shaft Revolution
Signal (TCM)"
VHCL SPEED SEN·ABS
[P1808]
●
Malfunction is detected in vehicle speed signal that is output from
ABS actuator and electric unit (control unit) through CAN commu-
nication.
●
Improper signal is input while driving.
TF-60, "Vehicle Speed Sensor
(ABS)"
CONTROL UNIT 4
[P1809]
AD converter system of transfer control unit is malfunctioning.
TF-59, "Transfer Control Unit"
4L POSI SW TF
[P1810]
Improper signal from neutral-4LO switch is input due to open or
short circuit.
BATTERY VOLTAGE
[P1811]
Power supply voltage for transfer control unit is abnormally low
while driving.
TF-56, "Power Supply Circuit For
Transfer Control Unit"
4WD MODE SW
[P1813]
More than two switch inputs are simultaneously detected due to
short circuit of 4WD shift switch.
4WD DETECT SWITCH
[P1814]
Improper signal from wait detection switch is input due to open or
short circuit.
TF-68, "Wait Detection Switch"
PNP SW/CIRC
[P1816]
When A/T PNP switch signal is malfunction or communication error
between the control units.
TF-71, "PNP Switch Signal
(TCM)"
SHIFT ACTUATOR
[P1817]
●
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.
SHIFT ACT POSI SW
[P1818]
●
Improper signal from actuator position switch is input due to open
or short circuit.
●
Malfunction is detected in the actuator position switch.
TF-48
[ATX14B]
TROUBLE DIAGNOSIS
2007 Pathfinder
CAUTION:
●
If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communica-
tion 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” posi-
tion on A/T PNP switch. When there is nothing wrong with the electrical system, check the hydraulic system.
SHIFT ACT CIR
[P1819]
●
Transfer control device actuator circuit is shorted or open. (Mal-
functions 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.
TF-83, "Transfer Control Device"
Malfunction is detected in transfer shut off relay.
TF-56, "Power Supply Circuit For
Transfer Control Unit"
ENGINE SPEED SIG
[P1820]
●
Malfunction is detected in engine speed signal that is output from
ECM through CAN communication.
●
Improper signal is input while driving.
TF-87, "Engine Speed Signal
(ECM)"
DUTY SOLENOID
[P1822]
Proper voltage is not applied to clutch pressure solenoid valve due
to open or short circuit.
TF-87, "Clutch Pressure Sole-
noid"
2-4WD SOLENOID
[P1823]
Proper voltage is not applied to 2-4WD solenoid valve due to open
or short circuit.
MOTOR RELAY
[P1824]
Motor does not operate properly due to open or short circuit in
transfer motor or transfer motor relay.
OIL TEMP SEN
[P1826]
Signal voltage from transfer fluid temperature sensor is abnormally
high (Transfer fluid temperature is abnormally low) while driving.
TF-103, "Transfer Fluid Temper-
ature"
CLUTCH PRES SW
[P1827]
●
Improper signal from clutch pressure switch is input due to open
or short circuit.
●
Malfunction occurs in clutch pressure switch or hydraulic circuit.
TF-106, "Clutch Pressure
Switch"
LINE PRES SW
[P1828]
●
Improper signal from line pressure switch is input due to open or
short circuit.
●
Malfunction occurs in line pressure switch or hydraulic circuit.
TF-109, "Line Pressure Switch"
THROTTLE POSI SEN
[P1829]
●
Malfunction is detected in accelerator pedal position signal that is
output from ECM through CAN communication.
●
Signal voltage from accelerator pedal position sensor is abnor-
mally high or low.
TF-112, "Throttle Position Signal
(ECM)"
ABS OP SIG
[P1830]
Malfunction is detected in ABS operation signal that is output from
ABS actuator and electric unit (control unit) through CAN communi-
cation.
TF-112, "ABS Operation Signal
(ABS)"
VDC OP SIG
[P1831]
Malfunction is detected in VDC operation signal that is output from
ABS actuator and electric unit (control unit) through CAN communi-
cation.
TF-113, "VDC Operation Signal
(ABS)"
TCS OP SIG
[P1832]
Malfunction is detected in TCS operation signal that is output from
ABS actuator and electric unit (control unit) through CAN communi-
cation.
TF-113, "TCS Operation Signal
(ABS)"
CAN COMM CIRCUIT
[U1000]
Malfunction has been detected from CAN communication line.
TF-114, "CAN Communication
Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY
BE REQUIRED.
No NG item has been detected.
—
Items (CONSULT-II screen
terms)
Diagnostic item is detected when...
Check item
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