Nissan Pathfinder (2005 year). Instruction — part 430
TROUBLE DIAGNOSIS FOR SYSTEM
TF-59
[ATX14B]
C
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A
B
TF
2005 Pathfinder
2.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminals 3, 6, M153 terminal 45 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-38, "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-134, "Removal and Installation"
.
Continuity should exist.
SDIA2691E
TF-60
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
COMPONENT INSPECTION
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Remove transfer shut off relay. Refer to
TF-24, "Location of Electrical Parts"
.
3.
Apply 12V direct current between transfer shut off relay termi-
nals 1 and 2.
4.
Check continuity between relay terminals 3 and 5.
5.
If NG, replace the transfer shut off relay.
Transfer Control Unit
EDS001JB
DIAGNOSTIC PROCEDURE
1.
INSPECTION START
Do you have CONSULT-II?
YES or NO
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
PERFORM SELF-DIAGNOSIS (WITH CONSULT-II)
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3.
Touch “ERASE”.
4.
Turn ignition switch “OFF” and wait at least 10 seconds.
5.
Perform the self-diagnosis again.
Is the “CONTROL UNIT 1 [P1802]”, “CONTROL UNIT 2 [P1803]”, “CONTROL UNIT 3 [P1804]” or “CONTROL
UNIT 4 [P1809]” displayed?
YES
>> Replace transfer control unit. Refer to
TF-134, "Removal and Installation"
.
NO
>> Inspection End.
3.
PERFORM SELF-DIAGNOSIS (WITHOUT CONSULT-II)
Without CONSULT-II
1.
Perform the self-diagnosis and then erase self-diagnostic results. Refer to
PROCEDURE (WITHOUT CONSULT-II)"
and
.
2.
Perform the self-diagnosis again.
Do the self-diagnostic results indicate AD converter?
YES
>> Replace transfer control unit. Refer to
TF-134, "Removal and Installation"
.
NO
>> Inspection End.
Condition
Continuity
12V direct current supply between terminals 1 and 2
Yes
OFF
No
SCIA1245E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-61
[ATX14B]
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A
B
TF
2005 Pathfinder
Output Shaft Revolution Signal (TCM)
EDS001JC
DIAGNOSTIC PROCEDURE
1.
CHECK DTC WITH TCM
Perform self-diagnosis with TCM. Refer to
TF-53, "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)"
.
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-38, "Transfer Control Unit Input/Output Signal Ref-
.
OK or NG
OK
>> GO TO 3.
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.
3.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> Inspection End.
NG
>> Perform self-diagnosis with TCM again. Refer to
TF-53, "SELF-DIAGNOSTIC PROCEDURE
.
Vehicle Speed Sensor (ABS)
EDS001JD
DIAGNOSTIC PROCEDURE
1.
CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to
.
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-38, "Transfer Control Unit Input/Output Signal Ref-
.
OK or NG
OK
>> GO TO 3.
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.
3.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> Inspection End.
NG
>> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to
.
TF-62
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
Neutral-4LO Switch
EDS001JE
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
Content
Condition
Display value
N POSI SW TF [ON/
OFF]
Condition of neutral-4LO
switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal depressed
4WD shift switch: 2WD,
AUTO or 4H
OFF
4WD shift switch: 4H to
4LO (While actuator
motor is operating.)
OFF
→
ON
4WD shift switch: 4LO to
4H (While actuator motor
is operating.)
ON
→
OFF
4WD shift switch: 4LO
ON
Terminal
Wire
color
Item
Condition
Data (Approx.)
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
TROUBLE DIAGNOSIS FOR SYSTEM
TF-63
[ATX14B]
C
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A
B
TF
2005 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK 4LO POSITION SWITCH SIGNAL
With CONSULT-II
1.
Start engine.
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3.
Read out the value of “N POSI SW TF”.
Without CONSULT-II
1.
Start engine.
2.
Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND NEUTRAL-4LO SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and the neutral-4LO switch harness connector.
3.
Check continuity between transfer control unit harness connec-
tor M153 terminal 25 and neutral-4LO switch harness connector
F60 terminal 13.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
Condition
Display value
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” position
●
Brake pedal depressed
4WD shift switch: 2WD,
AUTO or 4H
OFF
4WD shift switch: 4H to
4LO (While actuator
motor is operating.)
OFF
→
ON
4WD shift switch: 4LO to
4H (While actuator motor
is operating.)
ON
→
OFF
4WD shift switch: 4LO
ON
SDIA2692E
Connector
Terminal
(Wire
color)
Condition
Voltage
(Approx.)
M153
25 -
Ground
●
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 actuator
motor is operating.)
Battery
voltage
→
0V
4WD shift switch: 4LO
to 4H (While actuator
motor is operating.)
0V
→
Battery
voltage
4WD shift switch: 4LO
0V
SDIA2693E
Continuity should exist.
SDIA2694E
TF-64
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect neutral-4LO switch harness connector.
3.
Check continuity between neutral-4LO switch harness connec-
tor F60 terminal 12 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK 4LO SWITCH
1.
Turn ignition switch “OFF”.
2.
Disconnect neutral-4LO switch harness connector.
3.
Remove neutral-4LO switch. Refer to
TF-24, "Location of Electrical Parts"
.
4.
Push and release neutral-4LO switch and check continuity
between neutral-4LO switch terminals 12 and 13.
OK or NG
OK
>> GO TO 5.
NG
>> Replace neutral-4LO switch. Refer to
.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-38, "Transfer Control Unit Input/Output Signal Ref-
.
OK or NG
OK
>> GO TO 6.
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.
6.
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-134, "Removal and Installation"
.
Continuity should exist.
SDIA2695E
Terminal
Condition
Continuity
12 - 13
Push neutral-4LO switch
Yes
Release neutral-4LO switch
No
SDIA2696E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-65
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
TF
2005 Pathfinder
COMPONENT INSPECTION
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect neutral-4LO switch harness connector.
3.
Remove neutral-4LO switch. Refer to
TF-24, "Location of Electrical Parts"
.
4.
Push and release neutral-4LO switch and check continuity
between neutral-4LO switch terminals 12 and 13.
5.
If NG, replace the neutral-4LO switch. Refer to
.
4WD Shift Switch
EDS001JF
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.
Terminal
Condition
Continuity
12 - 13
Push neutral-4LO switch
Yes
Release neutral-4LO switch
No
SDIA2696E
Monitored item [Unit]
Content
Condition
Display value
2WD SWITCH [ON/
OFF]
Input condition from 4WD
shift switch
4WD shift switch: 2WD
ON
4WD shift switch: AUTO, 4H or 4LO
OFF
AUTO SWITCH [ON/
OFF]
Input condition from 4WD
shift switch
4WD shift switch: AUTO
ON
4WD shift switch: 2WD, 4H or 4LO
OFF
LOCK SWITCH [ON/
OFF]
Input condition from 4WD
shift switch
4WD shift switch: 4H
ON
4WD shift switch: 2WD, AUTO or 4LO
OFF
4L SWITCH [ON/OFF]
Input condition from 4WD
shift switch
4WD shift switch: 4LO
ON
4WD shift switch: 2WD, AUTO or 4H
OFF
4WD MODE [AUTO/
LOCK/2WD/4L]
Control status of 4WD
(Output condition of 4WD
shift indicator lamp and
4LO indicator lamp)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal depressed
4WD shift switch: 2WD
2WD
4WD shift switch: AUTO
AUTO
4WD shift switch: 4H
LOCK
4WD shift switch: 4LO
4L
Terminal
Wire
color
Item
Condition
Data (Approx.)
9
G
4WD shift switch
(2WD)
Ignition switch: ON
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO, 4H or 4LO
0V
18
O
4WD shift switch
(4H)
Ignition switch: ON
4WD shift switch: 4H
Battery voltage
4WD shift switch: 2WD, AUTO or 4LO
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
TF-66
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK 4WD SHIFT SWITCH SIGNAL
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3.
Read out ON/OFF switching action of the “2WD SWITCH”,
“AUTO SWITCH”, “LOCK SWITCH” and “4L SWITCH” while
operating 4WD shift switch.
Without CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Check voltage between transfer control unit harness connector
terminals and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.
SDIA2697E
Connector
Terminal
(Wire color)
Condition
Voltage
(Approx.)
M152
9 - ground
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO, 4H or 4LO
0V
18 - ground
4WD shift switch: 4H
Battery voltage
4WD shift switch: 2WD, AUTO or
4LO
0V
23 - ground
4WD shift switch: 4LO
Battery voltage
4WD shift switch: 2WD, AUTO or
4H
0V
24 - ground
4WD shift switch: AUTO
Battery voltage
4WD shift switch: 2WD, 4H or 4LO
0V
WDIA0167E
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