Nissan Pathfinder (2007 year). Manual — part 397
TROUBLE DIAGNOSIS FOR SYSTEM
TF-57
[ATX14B]
C
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A
B
TF
2007 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK POWER SUPPLY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Connect 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.
●
10A fuses [No. 21 located in fuse block (J/B) and No. 59 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 M153
terminals 47.
●
Harness for short or open between ignition switch and transfer control unit harness connector
M153 terminal 29.
●
Harness for short or open between battery and transfer shut off relay harness connector E155
terminal 1 and 3.
●
Harness for short or open between transfer shut off relay harness connector E155 terminal 2
and transfer control unit harness connector M153 terminal 30.
●
Harness for short or open between transfer shut off relay harness connector E155 terminal 5
and transfer control unit harness connector M152 terminals 16 and 22.
●
Battery and ignition switch. Refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
.
●
Transfer shut off relay. Refer to
.
Connector
Terminal
Voltage (Approx.)
M152
16 - Ground
0V
22 - Ground
M153
29 - Ground
30 - Ground
Battery voltage
47 - Ground
WDIA0165E
Connector
Terminal
Voltage (Approx.)
M152
16 - Ground
Battery voltage
22 - Ground
M153
29 - Ground
30 - Ground
0V
47 - Ground
Battery voltage
WDIA0166E
TF-58
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 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-37, "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-132, "Removal and Installation"
Continuity should exist.
SDIA2691E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-59
[ATX14B]
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TF
2007 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
EDS0036F
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-132, "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)"
2.
Perform the self-diagnosis again.
Do the self-diagnostic results indicate AD converter?
YES
>> Replace transfer control unit. Refer to
TF-132, "Removal and Installation"
NO
>> Inspection End.
Condition
Continuity
12V direct current supply between terminals 1 and 2
Yes
OFF
No
SCIA1245E
TF-60
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 Pathfinder
Output Shaft Revolution Signal (TCM)
EDS0036G
DIAGNOSTIC PROCEDURE
1.
CHECK DTC WITH TCM
Perform self-diagnosis with TCM. Refer to
TF-52, "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-37, "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-52, "SELF-DIAGNOSTIC PROCEDURE
Vehicle Speed Sensor (ABS)
EDS0036H
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-37, "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
.
TROUBLE DIAGNOSIS FOR SYSTEM
TF-61
[ATX14B]
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TF
2007 Pathfinder
Neutral-4LO Switch
EDS0036I
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
TF-62
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 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
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
TROUBLE DIAGNOSIS FOR SYSTEM
TF-63
[ATX14B]
C
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A
B
TF
2007 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-37, "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-132, "Removal and Installation"
Continuity should exist.
SDIA2695E
Terminal
Condition
Continuity
12 - 13
Push neutral-4LO switch
Yes
Release neutral-4LO switch
No
SDIA2696E
TF-64
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2007 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
EDS0036J
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
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