Nissan Pathfinder (2005 year). Instruction — part 434
TROUBLE DIAGNOSIS FOR SYSTEM
TF-91
[ATX14B]
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TF
2005 Pathfinder
4.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer terminal cord assembly harness connector.
3.
Check continuity between transfer terminal cord assembly har-
ness connector F56 terminal 19 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
5.
CHECK CLUTCH PRESSURE SOLENOID
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer terminal cord assembly harness connector.
3.
Check resistance between transfer terminal cord assembly har-
ness connector F56 terminals 6 and 19.
OK or NG
OK
>> GO TO 6.
NG
>> Replace clutch pressure solenoid. Refer to
.
6.
CHECK TRANSFER DROPPING RESISTOR
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer dropping resistor harness connector.
3.
Check resistance between transfer dropping resistor terminals 1
and 2.
OK or NG
OK
>> GO TO 7.
NG
>> Replace transfer dropping resistor.
Refer to
"Location of Electrical Parts"
.
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
>> GO TO 8.
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.
Continuity should exist.
SDIA2723E
6 - 19
: Approx. 3.0 - 3.4
Ω
SDIA2724E
1 - 2
: Approx. 11.2 - 12.8
Ω
SDIA2725E
TF-92
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
8.
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"
.
COMPONENT INSPECTION
Clutch Pressure Solenoid
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer terminal cord assembly harness connector.
3.
Check resistance between transfer terminal cord assembly ter-
minals 6 and 19.
4.
If NG, replace clutch pressure solenoid. Refer to
.
Transfer Dropping Resistor
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer dropping resistor harness connector.
3.
Check resistance between transfer dropping resistor terminals 1
and 2.
4.
If NG, replace transfer dropping resistor. Refer to
.
6 - 19
: Approx. 3.0 - 3.4
Ω
WDIA0225E
1 - 2
: Approx. 11.2 - 12.8
Ω
SDIA2725E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-93
[ATX14B]
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2005 Pathfinder
2-4WD Solenoid
EDS001JN
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.
DIAGNOSTIC PROCEDURE
1.
CHECK 4WD SHIFT SWITCH SYSTEM
Perform self-diagnosis. Refer to
TF-53, "Self-diagnostic Procedure"
.
Is the "4WD MOD SW [P1814]" (with CONSULT-II) or "Flickering pattern:16" (without CONSULT-II) detected?
YES
>> Perform trouble diagnosis for 4WD shift switch. Refer to
.
NO
>> GO TO 2
Monitored item
Content
Condition
Display value
2-4WD SOL [ON/OFF]
Condition of 2-4WD shift
solenoid valve
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
ON
4WD shift switch: 4H
4WD shift switch: 4LO
4WD shift switch: AUTO
(“Wait” function is operat-
ing.)
OFF
4WD shift switch: 4H
(“Wait” function is operat-
ing.)
OFF
2-4WD SOL MON [ON/
OFF]
Check signal for transfer
control unit signal output
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
ON
4WD shift switch: 4H
4WD shift switch: 4LO
4WD shift switch: AUTO
(“Wait” function is operat-
ing.)
OFF
4WD shift switch: 4H
(“Wait” function is operat-
ing.)
OFF
Terminal
Wire
color
Item
Condition
Data (Approx.)
1
GR
2-4WD shift solenoid valve
●
Vehicle stopped
●
Engine running
●
A/T selector
lever “N” position
●
Brake pedal
depressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO, 4H or 4LO
Battery voltage
TF-94
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
2.
CHECK 2-4WD SHIFT SOLENOID 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 “2-4WD SOL” and “2-4WD SOL MON”.
Without CONSULT-II
1.
Start engine.
2.
Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 3.
Monitored
item
Condition
Display
value
2-4WD SOL
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal
depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
ON
4WD shift switch: 4H
4WD shift switch: 4LO
4WD shift switch: AUTO
(“Wait” function is operat-
ing.)
OFF
4WD shift switch: 4H (“Wait”
function is operating.)
OFF
2-4WD SOL
MON
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N”
position
●
Brake pedal
depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
ON
4WD shift switch: 4H
4WD shift switch: 4LO
4WD shift switch: AUTO
(“Wait” function is operat-
ing.)
OFF
4WD shift switch: 4H (“Wait”
function is operating.)
OFF
SDIA2727E
Connector
Terminal
(Wire
color)
Condition
Voltage
(Approx.)
M152
1 -
Ground
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch:
2WD
0V
4WD shift switch:
AUTO, 4H or 4LO
Battery
voltage
SDIA2728E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-95
[ATX14B]
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TF
2005 Pathfinder
3.
CHECK 4WD SHIFT SWITCH SIGNAL
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 4.
NG
>> Check 4WD shift switch. Refer to
.
4.
CHECK HARNESS BETWEEN 4WD SHIFT SWITCH AND TRANSFER TERMINAL CORD ASSEMBLY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect 4WD shift switch harness connector and transfer terminal cord assembly harness connector.
3.
Check continuity between 4WD shift switch harness connector
M141 terminal 4 and transfer terminal cord assembly harness
connector F56 terminal 5.
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 HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER TERMINAL CORD
ASSEMBLY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and transfer terminal cord assembly harness connec-
tor.
3.
Check continuity between transfer control unit harness connec-
tor M152 terminal 1 and transfer terminal cord assembly har-
ness connector F56 terminal 4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
Connector
Terminal
(Wire color)
Condition
Voltage
(Approx.)
M141
4 - ground
4WD shift switch: AUTO, 4H or 4LO
Battery voltage
4WD shift switch: 2WD
0V
SDIA2729E
Continuity should exist.
SDIA2731E
Continuity should exist.
SDIA2732E
TF-96
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
6.
CHECK 2-4WD SOLENOID
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer terminal cord assembly harness connector.
3.
Check resistance between transfer terminal cord assembly ter-
minals 4 and 5.
OK or NG
OK
>> GO TO 7.
NG
>> 2-4WD solenoid is malfunctioning. Refer to
"Location of Electrical Parts"
.
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
>> GO TO 8.
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.
8.
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"
.
COMPONENT INSPECTION
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer terminal cord assembly harness connector.
3.
Check resistance between transfer terminal cord assembly ter-
minals 4 and 5.
4.
If NG, replace the 2-4WD solenoid. Refer to
.
4 - 5
: Approx. 22.8 - 25.2
Ω
WDIA0187E
4 - 5
: Approx. 22.8 - 25.2
Ω
WDIA0187E
TROUBLE DIAGNOSIS FOR SYSTEM
TF-97
[ATX14B]
C
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A
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TF
2005 Pathfinder
Transfer Motor
EDS001JO
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
Monitored item
Content
Condition
Display value
MOTOR RELAY [ON/
OFF]
Condition of transfer motor
relay
●
Accelerator pedal
depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
or 4LO (A/T selector lever
“P” or “N” position)
OFF
("ON" for approx. 2
sec. after shifting to
“P” and “N”.)
4WD shift switch: AUTO
or 4LO (Except for A/T
selector lever “P” or “N”
position)
ON
4WD shift switch: 4H (A/T
selector lever “P” posi-
tion)
OFF
("ON" for approx. 2
sec. after shifting to
“P”.)
4WD shift switch: 4H
(Except for A/T selector
lever “P” position)
ON
MOTOR RELAY MON
[ON/OFF]
Check signal for transfer
control unit signal output
●
Accelerator pedal
depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal depressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO
or 4LO (A/T selector lever
“P” or “N” position)
OFF
("ON" for approx. 2
sec. after shifting to
“P” and “N”.)
4WD shift switch: AUTO
or 4LO (Except for A/T
selector lever “P” or “N”
position)
ON
4WD shift switch: 4H (A/T
selector lever “P” posi-
tion)
OFF
("ON" for approx. 2
sec. after shifting to
“P”.)
4WD shift switch: 4H
(Except for A/T selector
lever “P” position)
ON
TF-98
[ATX14B]
TROUBLE DIAGNOSIS FOR SYSTEM
2005 Pathfinder
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
Wire
color
Item
Condition
Data (Approx.)
14
V
Transfer motor relay
●
Accelerator
pedal depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal
depressed
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO or 4LO (A/T
selector lever “P” or “N” position)
Battery voltage
(0V for approx.
2 sec. after
shifting to “P”
and “N”.)
4WD shift switch: AUTO or 4LO (Except
for A/T selector lever “P” or “N” position)
0V
4WD shift switch: 4H (A/T selector lever
“P” position)
Battery voltage
(0V for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T
selector lever “P” position)
0V
41
SB
Transfer motor relay monitor
●
Accelerator
pedal depressed
●
Vehicle stopped
●
Engine running
●
Brake pedal
depressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO or 4LO (A/T
selector lever “P” or “N” position)
0V
(Battery volt-
age for approx.
2 sec. after
shifting to “P”
and “N”.)
4WD shift switch: AUTO or 4LO (Except
for A/T selector lever “P” or “N” position)
Battery voltage
4WD shift switch: 4H (A/T selector lever
“P” position)
0V
(Battery volt-
age for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T
selector lever “P” position)
Battery voltage
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