Nissan Pathfinder (2007 year). Manual — part 417
TROUBLE DIAGNOSIS
TF-217
[TX15B]
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2007 Pathfinder
SELF-DIAG RESULT MODE
Operation Procedure
1.
Perform “CONSULT-II SETTING PROCEDURE”. Refer to
TF-216, "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 follows:
●
"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
*INITIAL START*
[P1801]
Due to removal of battery which cuts off power supply to transfer
control unit, self-diagnosis memory function is suspended.
TF-222, "Power Supply Circuit
For Transfer Control Unit"
CONTROL UNIT 1
[P1802]
Malfunction is detected in the memory (RAM) system of transfer
control unit.
TF-225, "Transfer Control Unit"
CONTROL UNIT 2
[P1803]
Malfunction is detected in the memory (ROM) system of transfer
control unit.
TF-225, "Transfer Control Unit"
CONTROL UNIT 3
[P1804]
Malfunction is detected in the memory (EEPROM) system of trans-
fer control unit.
TF-225, "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-225, "Output Shaft Revolu-
tion 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-226, "Vehicle Speed Sensor
(ABS)"
CONTROL UNIT 4
[P1809]
AD converter system of transfer control unit is malfunctioning.
TF-225, "Transfer Control Unit"
4L POSI SW TF
[P1810]
Improper signal from 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-222, "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-234, "Wait Detection Switch"
PNP SW/CIRC
[P1816]
When A/T PNP switch signal is malfunction or communication error
between the vehicles.
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 or 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 actuator position switch.
TF-218
[TX15B]
TROUBLE DIAGNOSIS
2007 Pathfinder
CAUTION:
If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communication
line.
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.)
How to Erase Self-diagnostic Results
1.
Perform applicable inspection of malfunctioning item and then repair or replace.
2.
Start engine and select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3.
Touch “ERASE” on CONSULT-II screen to erase DTC memory.
CAUTION:
If memory cannot be erased, perform applicable diagnosis.
DATA MONITOR MODE
Operation Procedure
1.
Perform “CONSULT-II SETTING PROCEDURE”. Refer to
TF-216, "CONSULT-II START PROCEDURE"
2.
Touch “DATA MONITOR”.
3.
Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
Display Item List
×
: Standard
–: Not applicable
SHIFT ACT CIR
[P1819]
●
Malfunction is detected in transfer shut off relay 1 and transfer
shut off relay 2.
●
Malfunction occurs in transfer control device drive circuit.
TF-222, "Power Supply Circuit
For Transfer Control Unit"
248, "Transfer Control Device"
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.
CAN COMM CIRCUIT
[U1000]
Malfunction has been detected from CAN communication line.
TF-252, "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
Monitored item (Unit)
Monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
VHCL/S SEN·FR [km/h] or [mph]
×
–
×
Wheel speed calculated by ABS actuator
and electric unit (control unit).
Signal input with CAN communication line.
VHCL/S SEN·RR [km/h] or [mph]
×
–
×
Wheel speed calculated by TCM.
Signal input with CAN communication line.
ENGINE SPEED [rpm]
×
–
×
Engine speed is displayed.
Signal input with CAN communication line.
BATTERY VOLT [V]
×
–
×
Power supply voltage for transfer control
unit.
2WD SWITCH [ON/OFF]
×
–
×
4WD shift switch signal status is dis-
played.
(4L means 4LO of 4WD shift switch.)
4H SWITCH [ON/OFF]
×
–
×
4L SWITCH [ON/OFF]
×
–
×
4L POSI SW [ON/OFF]
×
–
×
This means 4LO switch.
4LO switch signal status is displayed.
TROUBLE DIAGNOSIS
TF-219
[TX15B]
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2007 Pathfinder
Self-Diagnostic Procedure
EDS00389
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
Refer to
TF-217, "SELF-DIAG RESULT MODE"
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)
Description
If the engine starts when there is something wrong with the 4WD system, the 4WD warning lamp turns ON or
flickers in the combination meter. When the system functions properly, the warning lamp turns ON when the
ignition switch is turned to “ON”, and it turns OFF after engine starts. To locate the cause of a problem, start
the self-diagnosis function. The 4WD warning lamp in the combination meter will indicate the problem area by
flickering according to the self-diagnostic results. As for the details of the 4WD warning lamp flickering pat-
terns, refer to
TF-220, "Diagnostic Procedure"
ATP SWITCH [ON/OFF]
×
–
×
ATP switch signal status is displayed.
WAIT DETCT SW [ON/OFF]
×
–
×
Wait detection switch signal status is dis-
played.
4WD MODE [2H/4H/4L]
–
×
×
Control status of 4WD recognized by
transfer control unit. (2WD, 4H or 4LO)
VHCL/S COMP [km/h] or [mph]
–
×
×
Vehicle speed recognized by transfer con-
trol unit.
SHIFT ACT 1 [ON/OFF]
–
×
×
Output condition to actuator motor (clock-
wise)
SHIFT AC MON 1 [ON/OFF]
–
–
×
Check signal for transfer control unit sig-
nal output
SHIFT ACT 2 [ON/OFF]
–
×
×
Output condition to actuator motor (coun-
terclockwise)
SHIFT AC MON 2 [ON/OFF]
–
–
×
Check signal for transfer control unit sig-
nal output
SFT ACT/R MON [ON/OFF]
–
–
×
Operating condition of actuator motor
relay (integrated in transfer control unit)
SHIFT POS SW 1 [ON/OFF]
×
–
×
Condition of actuator position switch 1
SHIFT POS SW 2 [ON/OFF]
×
–
×
Condition of actuator position switch 2
SHIFT POS SW 3 [ON/OFF]
×
–
×
Condition of actuator position switch 3
SHIFT POS SW 4 [ON/OFF]
×
–
×
Condition of actuator position switch 4
4WD FAIL LAMP [ON/OFF]
–
×
×
Control status of 4WD warning lamp is dis-
played.
2WD IND [ON/OFF]
–
–
×
Control status of 4WD shift indicator lamp
(rear) is displayed.
4H IND [ON/OFF]
–
–
×
Control status of 4WD shift indicator lamp
(front and center) is displayed.
4L IND [ON/OFF]
–
–
×
Control status of 4LO indicator lamp is dis-
played.
Voltage [V]
–
–
×
The value measured by the voltage probe
is displayed.
Frequency [Hz]
–
–
×
The value measured by the pulse probe is
displayed.
DUTY-HI (high) [%]
–
–
×
DUTY-LOW (low) [%]
–
–
×
PLS WIDTH-HI [msec]
–
–
×
PLS WIDTH-LOW [msec]
–
–
×
Monitored item (Unit)
Monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
TF-220
[TX15B]
TROUBLE DIAGNOSIS
2007 Pathfinder
Diagnostic Procedure
1.
Warn up engine.
2.
Turn ignition switch “ON” and “OFF” at least twice, and then turn ignition switch “OFF”.
3.
Move A/T selector lever to “P” position.
4.
Turn 4WD shift switch to “2WD” position.
5.
Turn ignition switch “ON”. (Do not start engine.)
6.
4WD warning lamp ON.
If 4WD warning lamp does not turn ON, refer to
TF-259, "4WD Warning Lamp Does Not Turn ON"
7.
Move A/T selector lever to “R” position.
8.
Turn 4WD shift switch to “2WD”, “4H” and “2WD” in order.
9.
Move A/T selector lever to “P” position.
10. Turn 4WD shift switch to “4H”, “2WD” and “4H” in order.
11. Move A/T selector lever to “N” position.
12. Turn 4WD shift switch to “2WD” position.
13. Move A/T selector lever to “P” position.
14. Read the flickering of 4WD warning lamp.
Refer to
TF-220, "Judgement Self-diagnosis"
Judgement Self-diagnosis
When a malfunction is detected, the malfunction route is indicated by flickering of the 4WD warning lamp.
PDIA0227E
Flickering pattern or
flickering condition
Items
Diagnostic item is detected when...
Check item
2
Output shaft revolution
signal (from TCM)
●
Malfunction is detected in output shaft revolution signal
that is output from TCM through CAN communication.
●
Improper signal is input while driving.
TF-225, "Output Shaft
Revolution Signal
(TCM)"
3
Vehicle speed signal
(from 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.
TF-226, "Vehicle
Speed Sensor (ABS)"
4
CAN communication
Malfunction has been detected from CAN communication.
TF-252, "CAN Commu-
nication Line"
5
AD converter
AD converter system of transfer control unit is malfunc-
tioning.
TF-225, "Transfer Con-
trol Unit"
6
4LO switch
Improper signal from 4LO switch is input due to open or
short circuit.
7
Engine speed signal
●
Malfunction is detected in engine speed signal that is
output from ECM through CAN communication.
●
Improper signal is input while driving.
8
Power supply
Power supply voltage for transfer control unit is abnor-
mally low while driving.
TROUBLE DIAGNOSIS
TF-221
[TX15B]
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2007 Pathfinder
NOTE:
If “actuator position switch” or “transfer control device” is displayed, first erase self-diagnostic results. (They may be displayed after
installing transfer control unit or transfer assembly.)
ERASE SELF-DIAGNOSIS
●
In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.
●
However, this information is erased by turning ignition switch “OFF” after performing self-diagnostics or by
erasing the memory using the CONSULT-II.
9
4WD shift switch
More than two switch inputs are simultaneously detected
due to short circuit of 4WD shift switch.
10
Wait detection switch
Improper signal from wait detection switch is input due to
open or short circuit.
TF-234, "Wait Detec-
tion Switch"
11
Actuator motor
●
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 or
transfer shift low relay.
12
Actuator position switch
●
Improper signal from actuator position switch is input
due to open or short circuit.
●
Malfunction is detected in the actuator position switch.
TF-245, "Actuator Posi-
tion Switch"
13
Transfer control device
●
Malfunction is detected in transfer shut off relay 1 and
transfer shut off 2.
●
Malfunction occurs in transfer control device drive cir-
cuit.
TF-222, "Power Sup-
ply Circuit For Transfer
Control Unit"
,
14
PNP switch signal
When A/T PNP switch signal is malfunction or communi-
cation error between the vehicles.
Repeats flickering
every 0.25 sec.
Data erase display
●
Power supply failure of memory back-up.
●
Battery is disconnected for a long time.
●
Battery performance is poor.
TF-222, "Power Sup-
ply Circuit For Transfer
Control Unit"
Repeats flickering
every 2 to 5 sec.
—
Circuits that the self-diagnosis covers have no malfunc-
tion.
—
No flickering
PNP switch or 4WD
shift switch
PNP switch or 4WD shift switch circuit is shorted or open.
Flickering pattern or
flickering condition
Items
Diagnostic item is detected when...
Check item
TF-222
[TX15B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 Pathfinder
TROUBLE DIAGNOSIS FOR SYSTEM
PFP:00000
Power Supply Circuit For Transfer Control Unit
EDS0038A
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Monitored item [Unit]
Content
Condition
Display value
BATTERY VOLT [V]
Power supply voltage for
transfer control unit
Ignition switch: ON
Battery voltage
Terminal
Wire
color
Item
Condition
Data (Approx.)
6
B
Ground
Always
0V
18
B
Ground
Always
0V
19
R
Power supply
(Memory back-up)
Ignition switch: ON
Battery voltage
Ignition switch: OFF
Battery voltage
25
W/G
Ignition switch monitor
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0V
32
B
Actuator motor ground
Always
0V
40
V
Transfer shut off relay
Ignition switch: ON
0V
Ignition switch: OFF (5 seconds after ignition switch is turned
OFF)
Battery voltage
44
Y
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF (5 seconds after ignition switch is turned
OFF)
0V
45
GR
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF (5 seconds after ignition switch is turned
OFF)
0V
TROUBLE DIAGNOSIS FOR SYSTEM
TF-223
[TX15B]
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2007 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK POWER SUPPLY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector.
3.
Check voltage between transfer control unit harness connector
terminals and ground.
4.
Turn ignition switch “ON”. (Do not start engine.)
5.
Check voltage between transfer control unit harness connector
terminals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following. If any items are damaged, repair or replace damaged parts.
●
40A fuse (No. j , located in the fuse and fusible link box). Refer to
●
10A fuses (No. 21, located in the fuse block-junction block (J/B) and 60 and 61 located in the
fuse and relay box). Refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
●
Harness for short or open between battery and transfer control unit harness connector M152
terminal 19.
●
Harness for short or open between battery and transfer shut off relay 2 harness connector E157
terminal 1 and 3.
●
Harness for short or open between battery and transfer shut off relay 1 harness connector E156
terminal 3.
●
Harness for short or open between ignition switch and transfer control unit harness connector
M152 terminal 25.
●
Harness for short or open between ignition switch and transfer shut off relay 1 harness connec-
tor E156 terminal 1.
●
Harness for short or open between transfer shut off relay 2 harness connector E157 terminal 5
and transfer control unit harness connector M153 terminals 44, 45.
●
Harness for short or open between transfer shut off relay 1 harness connector E156 terminal 5
and transfer control unit harness connector M153 terminals 44, 45.
●
Harness for short or open between transfer shut off relay 2 harness connector E157 terminal 2
and transfer control unit harness connector M153 terminal 40.
●
Harness for open between transfer shut off relay 1 harness connector E156 terminal 2 and
ground.
●
Battery and ignition switch. Refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
.
●
Transfer shut off relay 1, 2. Refer to
TF-225, "COMPONENT INSPECTION"
Connector
Terminal
Voltage (Approx.)
M152
19 - Ground
Battery voltage
25 - Ground
0V
M153
40 - Ground
Battery voltage
44 - Ground
0V
45 - Ground
SDIA3360E
Connector
Terminal
Voltage (Approx.)
M152
19 - Ground
Battery voltage
25 - Ground
M153
40 - Ground
44 - Ground
45 - Ground
SDIA3361E
TF-224
[TX15B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 Pathfinder
2.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect transfer control unit harness connector.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminals 6 and 18, and M153 terminal 32 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
3.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-211, "Transfer Control Unit Input/Output Signal Ref-
OK or NG
OK
>> GO TO 4.
NG
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
4.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> Inspection End.
NG
>> Replace transfer control unit. Refer to
TF-268, "Removal and Installation"
.
Continuity should exist.
SDIA3362E
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