Nissan Pathfinder (2005 year). Instruction — part 454
TROUBLE DIAGNOSIS FOR SYSTEM
TF-251
[TX15B]
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TF
2005 Pathfinder
CAN Communication Line
EDS001LI
DIAGNOSTIC PROCEDURE
1.
CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1.
Turn ignition switch “ON” and start engine.
2.
Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with in CONSULT-II.
3.
Perform the self-diagnosis.
Is the “CAN COMM CIRCUIT [U1000]” displayed?
YES
>> Print out CONSULT-II screen and go to
.
NO
>> Inspection End
ATP Switch
EDS001LJ
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.
SDIA2390E
Monitored item [Unit]
Content
Condition
Display value
ATP SWITCH [ON/OFF]
Condition of ATP switch
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal depressed
4WD shift switch
: 4H to 4LO or 4LO to 4H
(While actuator motor is
operating.)
ON
Except the above
OFF
Terminal
Wire
color
Item
Condition
Data (Approx.)
23
R
ATP switch
●
Vehicle stopped
●
Engine running
●
A/T selector
lever “N” position
●
Brake pedal
depressed
4WD shift switch
: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
0V
Except the above
Battery voltage
TF-252
[TX15B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK ATP 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 “ATP SWITCH”.
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 ATP SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and the ATP switch harness connector.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminal 23 and ATP switch harness connector F55
terminal 8.
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: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
ON
Except the above
OFF
SDIA2391E
Connector
Terminal
(Wire
color)
Condition
Voltage
(Approx.)
M152
23 -
Ground
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4H
to 4LO or 4LO to 4H
(While actuator motor
is operating.)
0V
Except the above
Battery
voltage
SDIA2392E
Continuity should exist.
SDIA2393E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-253
[TX15B]
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TF
2005 Pathfinder
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect ATP switch harness connector.
3.
Check continuity between ATP switch harness connector F55
terminal 9 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 ATP SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Remove ATP switch. Refer to
TF-202, "Location of Electrical Parts"
.
3.
Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
OK or NG
OK
>> GO TO 5.
NG
>> Replace ATP switch.
Refer to
.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-210, "Transfer Control Unit Input/Output Signal
.
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 ATP WARNING LAMP
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
A/T selector lever “N” position and engage the parking brake.
3.
Switch 4WD shift switch from 4H to 4LO or 4LO to 4H.
Does ATP warning lamp “ON”, while actuator motor is operating?
YES
>> Inspection End.
NO
>> Go to
TF-262, "ATP Warning Lamp Does Not Turn ON"
.
Continuity should exist.
SDIA2394E
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
TF-254
[TX15B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
COMPONENT INSPECTION
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect ATP switch harness connector.
3.
Remove ATP switch. Refer to
TF-202, "Location of Electrical Parts"
.
4.
Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
5.
If NG, replace the ATP switch. Refer to
.
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-255
[TX15B]
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TF
2005 Pathfinder
TROUBLE DIAGNOSIS FOR SYMPTOMS
PFP:00007
4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON
EDS001LK
SYMPTOM:
4WD shift indicator lamp and 4LO indicator lamp do not turn ON for approx. 1 second when turning
ignition switch to “ON”.
TF-256
[TX15B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
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 fusible link (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 57 and 58 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 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-224, "COMPONENT INSPECTION"
.
Connector
Terminal (Wire color)
Voltage (Approx.)
M152
19 - Ground
Battery voltage
25 - Ground
0V
M153
40 - Ground
Battery voltage
44 - Ground
0V
45 - Ground
SDIA2799E
Connector
Terminal (Wire color)
Voltage (Approx.)
M152
19 - Ground
Battery voltage
25 - Ground
M153
40 - Ground
44 - Ground
45 - Ground
SDIA2800E
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-257
[TX15B]
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TF
2005 Pathfinder
2.
CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connectors.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminals 6, 18, 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
connectors.
●
Harness for short or open between transfer shut off
relay harness connector E157 terminal 2 and transfer
control unit harness connector terminal 40.
3.
CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect combination meter harness connector.
3.
Check voltage between combination meter harness connector
terminals and ground.
4.
Turn ignition switch “ON”. (Do not start engine.)
5.
Check voltage between combination meter harness connector
terminals and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check the following. If any items are damaged, repair or
replace damaged parts.
●
10A fuse [No. 14, located in the fuse block (J/B) or]
ignition switch.
●
Harness for short or open between ignition switch and combination meter harness connector
terminal 16
Continuity should exist.
SDIA2801E
Connector
Terminal (Wire color)
Voltage (Approx.)
M24
16 - Ground
0V
WDIA0178E
Connector
Terminal (Wire color)
Voltage (Approx.)
M24
16 - Ground
Battery voltage
WDIA0179E
TF-258
[TX15B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
4.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Check continuity between the following terminals.
–
Transfer control unit harness connector M153 terminal 35 and
combination meter harness connector M24 terminal 30.
–
Transfer control unit harness connector M153 terminal 36 and
combination meter harness connector M24 terminal 27.
–
Transfer control unit harness connector M153 terminal 37 and
combination meter harness connector M24 terminal 29.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
5.
CHECK 4WD SHIFT INDICATOR LAMP AND 4LO INDICATOR LAMP CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Check the combination meter. Refer to
.
OK or NG
OK
>> GO TO 6.
NG
>> Replace the combination meter. Refer to
.
6.
SYMPTOM CHECK
Check again.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 7.
7.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
TF-210, "Transfer Control Unit Input/Output Signal
.
OK or NG
OK
>> Inspection End.
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.
4WD Warning Lamp Does Not Turn ON
EDS001LL
SYMPTOM:
4WD warning lamp does not turn ON when turning ignition switch to “ON”.
Continuity should exist.
SDIA2823E
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