Nissan Pathfinder (2005 year). Instruction — part 438
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-123
[ATX14B]
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2005 Pathfinder
4WD Warning Lamp Does Not Turn ON
EDS001K1
SYMPTOM:
4WD warning lamp does not turn ON when turning ignition switch to “ON”.
DIAGNOSTIC PROCEDURE
1.
CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
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 (Wire color)
Voltage (Approx.)
M152
16 - Ground
0V
22 - Ground
M153
29 - Ground
30 - Ground
Battery voltage
47 - Ground
WDIA0165E
Connector
Terminal (Wire color)
Voltage (Approx.)
M152
16 - Ground
Battery voltage
22 - Ground
M153
29 - Ground
30 - Ground
0V
47 - Ground
Battery voltage
WDIA0166E
TF-124
[ATX14B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
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 connector.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminals 3 and 6, and 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 COMBINATION METER 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 combination meter harness connector
terminal and ground.
4.
Turn ignition switch “ON”. (Do not start engine.)
5.
Check voltage between combination meter harness connector
terminal 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)].
Refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
.
●
Harness for short or open between ignition switch and combination meter harness connector
M24 terminal 16.
●
Ignition switch. Refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
.
Continuity should exist.
SDIA2691E
Connector
Terminal (Wire color)
Voltage (Approx.)
M24
16 - Ground
0V
SDIA2762E
Connector
Terminal (Wire color)
Voltage (Approx.)
M24
16 - Ground
Battery voltage
SDIA2763E
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-125
[ATX14B]
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2005 Pathfinder
4.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and combination meter harness connector.
3.
Check continuity between the following terminals.
–
Transfer control unit harness connector M152 terminal 5 and
combination meter harness connector M24 terminal 31.
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 INDICATOR LAMP CIRCUIT
1.
Connect combination meter harness connector.
2.
Disconnect transfer control unit harness connector.
3.
Turn ignition switch “ON”. (Do not start engine.)
4.
Ground the following terminal using suitable wiring.
–
Transfer control unit harness connector M152 terminal 5 and
ground.
Does 4WD warning lamp turn on?
OK
>> GO TO 6.
NG
>> Replace 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-38, "Transfer Control Unit Input/Output Signal Ref-
.
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 Shift Indicator Lamp or 4LO Indicator Lamp Does Not Change
EDS001K2
SYMPTOM:
4WD shift indicator lamp or 4LO indicator lamp does not change when switching 4WD shift switch.
Continuity should exist.
SDIA2773E
SDIA2774E
TF-126
[ATX14B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Confirm 4WD shift indicator lamp and 4LO indicator lamp turn on when ignition switch is turned to ON.
Do 4WD shift indicator lamp and 4LO indicator lamp turn on?
YES
>> GO TO 2.
NO
>> Go to
TF-120, "4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON"
.
2.
CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch system. Refer to
.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to
TF-69, "Wait Detection Switch"
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK SYSTEM FOR NEUTRAL-4LO SWITCH
Perform trouble diagnosis for neutral-4LO switch system. Refer to
.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
5.
CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to
.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
CHECK SYSTEM FOR 2-4WD SOLENOID
Perform trouble diagnosis for 2-4WD solenoid system. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
7.
CHECK SYSTEM FOR TRANSFER CONTROL DEVICE
Perform trouble diagnosis for transfer control device system. Refer to
TF-84, "Transfer Control Device"
.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace damaged parts.
8.
CHECK SYSTEM FOR ACTUATOR MOTOR
Perform trouble diagnosis for actuator motor system. Refer to
.
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-127
[ATX14B]
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2005 Pathfinder
9.
CHECK SYSTEM FOR ACTUATOR POSITION SWITCH
Perform trouble diagnosis for actuator position switch system. Refer to
TF-80, "Actuator Position Switch"
.
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace damaged parts.
10.
SYMPTOM CHECK
Check again.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 11.
11.
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 12.
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.
12.
CHECK TRANSFER INNER PARTS
1.
Disassemble transfer assembly. Refer to
TF-146, "Disassembly and Assembly"
.
2.
Check transfer inner parts.
OK or NG
OK
>> Inspection End.
NG
>> Repair or replace damaged parts.
ATP Warning Lamp Turns ON
EDS001K3
SYMPTOM:
ATP warning lamp turns ON when 4WD shift switch is switched from “4H” to “4LO” or “4LO” to “4H”
with A/T selector lever “N” or “P” position.
DIAGNOSTIC PROCEDURE
1.
CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to
TF-53, "Self-diagnostic Procedure"
.
Do the self-diagnostic results indicate CAN communication?
YES
>> Perform trouble diagnosis for CAN communication line. Refer to
.
NO
>> GO TO 2.
2.
CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch system. Refer to
.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR PNP SWITCH SIGNAL
Perform trouble diagnosis for PNP switch signal system. Refer to
TF-72, "PNP Switch Signal (TCM)"
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
TF-128
[ATX14B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
4.
CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to
.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
5.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and combination meter harness connector.
3.
Check continuity between the following terminals.
–
Transfer control unit harness connector M152 terminal 15 and
combination meter harness connector M24 terminal 21.
–
Transfer control unit harness connector M152 terminal 40 and
combination meter harness connector M24 terminal 1.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
CHECK ATP WARNING LAMP CIRCUIT
1.
A/T selector lever "P" position.
2.
Connect combination meter harness connector and transfer control unit harness connector.
3.
Disconnect ATP switch harness connector.
4.
Ground the following terminal using suitable wiring.
5.
Turn ignition switch “ON”. (Do not start engine.)
–
ATP switch harness connector F55 terminal 8 and ground.
Does indicator lamp turn on?
OK
>> GO TO 7.
NG
>> Replace combination meter. Refer to .
.
Continuity should exist.
SDIA2768E
40 TO 1: Continuity should
not exist.
1 to 40: Continuity should
exist.
SDIA2770E
SDIA2769E
TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-129
[ATX14B]
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2005 Pathfinder
7.
SYMPTOM CHECK
Check again.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 8.
8.
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 9.
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.
9.
CHECK TRANSFER INNER PARTS
1.
Disassemble transfer assembly. Refer to
TF-146, "Disassembly and Assembly"
.
2.
Check transfer inner parts.
OK or NG
OK
>> Inspection End.
NG
>> Repair or replace damaged parts.
4LO Indicator Lamp Repeats Flashing
EDS001K4
SYMPTOM:
4LO indicator lamp keeps flashing.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
1.
Set 4WD shift switch to “2WD”.
2.
Move vehicle forward and backward, or drive straight increasing or decreasing under 20 km/h (12 MPH).
Dose 4WD shift indicator lamp keep flashing?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to
TF-69, "Wait Detection Switch"
.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR NEUTRAL-4LO SWITCH
Perform trouble diagnosis for neutral-4LO switch system. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
SYMPTOM CHECK
Check again.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 5.
TF-130
[ATX14B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
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 TRANSFER INNER PARTS
1.
Disassemble transfer assembly. Refer to
TF-146, "Disassembly and Assembly"
.
2.
Check transfer inner parts.
OK or NG
OK
>> Inspection End.
NG
>> Repair or replace damaged parts.
4WD Warning Lamp Flashes Rapidly
EDS002FJ
SYMPTOM:
While driving, 4WD warning lamp flashes rapidly.
NOTE:
Rapid flashing: 2 times/second
DIAGNOSTIC PROCEDURE
1.
CHECK TIRE
Check the following.
●
Tire pressure
●
Wear condition
●
Longitudinal tire size (There is no difference between longitudinal tires.)
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace damaged parts.
2.
CHECK 4WD WARNING LAMP
Stop the vehicle and allow it to idle for a short period of time.
Does the 4WD warning lamp stop flashing?
YES
>> Inspection End.
NO
>> GO TO 3.
3.
CHECK TRANSFER FLUID TEMPERATURE
Perform trouble diagnosis for transfer fluid temperature system. Refer to
TF-104, "Transfer Fluid Temperature"
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
SYMPTOM CHECK
Check again.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 5.
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