Nissan Pathfinder (2009 year). Manual — part 194
DLN-34
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
P1810 NEUTRAL-4LO SWITCH
Are inspection results normal?
YES
>> GO TO 5.
NO
>> 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.
Are inspection results normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
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 ground and short to power.
Are inspection results normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power
in harness or connectors.
4.
CHECK 4LO SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect neutral-4LO switch harness connector.
3.
Remove neutral-4LO switch.
Connector
Terminal
(Wire col-
or)
Condition
Voltage
(Approx.)
M153
25 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
N position
• Brake pedal de-
pressed
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
Continuity should exist.
SDIA2694E
Continuity should exist.
SDIA2695E
2009 Pathfinder
P1810 NEUTRAL-4LO SWITCH
DLN-35
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
4.
Push and release neutral-4LO switch and check continuity
between neutral-4LO switch terminals 12 and 13.
Are inspection results normal?
YES
>> GO TO 5.
NO
>> Replace neutral-4LO switch. Refer to
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are inspection results normal?
YES
>> GO TO 6.
NO
>> 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
Drive the vehicle and then perform self-diagnosis.
Are inspection results normal?
YES
>> Inspection End.
NO
>> Replace transfer control unit. Refer to
DLN-136, "Removal and Installation"
Component Inspection
INFOID:0000000003937208
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
DLN-18, "Component Parts Location"
.
4.
Push and release neutral-4LO switch and check continuity
between neutral-4LO switch terminals 12 and 13.
5.
If the inspection results are abnormal replace the neutral-4LO
switch.
Terminal
Condition
Continuity
12 - 13
Push neutral-4LO switch
Yes
Release neutral-4LO switch
No
SDIA2696E
Terminal
Condition
Continuity
12 - 13
Push neutral-4LO switch
Yes
Release neutral-4LO switch
No
SDIA2696E
2009 Pathfinder
DLN-36
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
P1813 4WD SHIFT SWITCH
P1813 4WD SHIFT SWITCH
Description
INFOID:0000000003937209
The 4WD shift switch allows the driver to select AUTO, 2WD or 4WD and 4H or 4LO. DTC P1813 will set if
more than two switch inputs are simultaneously detected by the transfer control unit due to a short circuit in the
4WD shift switch.
DTC Logic
INFOID:0000000003937210
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Perform self-diagnosis.
Is DTC P1813 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000003937211
1.
CHECK 4WD SHIFT SWITCH SIGNAL
With CONSULT-III
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
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-III
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.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1813]
4WD MODE SW
More than two switch inputs are simulta-
neously detected due to short circuit of
4WD shift switch.
Refer to
.
Connector
Terminal
Condition
Voltage (Ap-
prox.)
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
2009 Pathfinder
P1813 4WD SHIFT SWITCH
DLN-37
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
2.
CHECK 4WD SHIFT SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect 4WD shift switch harness connector.
3.
Check voltage between 4WD shift switch harness connector ter-
minal 1 and ground.
4.
Turn ignition switch “ON”. (Do not start engine.)
5.
Check voltage between 4WD shift switch harness connector ter-
minal 1 and ground.
OK or NG
OK
>> GO TO 3.
NG
>>
Check the following. If any items are damaged, repair
or replace damaged parts.
• Harness for short or open between transfer shut off
relay harness connector E155 terminal 5.
• Power suppy circuit for transfer control unit. Refer to
3.
CHECK HARNESS BETWEEN 4WD SHIFT SWITCH AND TRANSFER CONTROL UNIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and the 4WD shift switch harness connector.
3.
Check continuity between the following terminals.
-
Transfer control unit harness connector M152 terminal 9 and
4WD shift switch harness connector M141 terminal 2.
-
Transfer control unit harness connector M152 terminal 18 and
4WD shift switch harness connector M141 terminal 5.
-
Transfer control unit harness connector M152 terminal 23 and
4WD shift switch harness connector M141 terminal 6.
-
Transfer control unit harness connector M152 terminal 24 and
4WD shift switch harness connector M141 terminal 3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK 4WD SHIFT SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect 4WD shift switch harness connector.
Connector Terminal
Voltage
(Approx.)
M141
1 - Ground
0V
WDIA0183E
Connector
Terminal
Voltage (Approx.)
M141
1 - Ground
Battery voltage
WDIA0184E
Continuity should exist.
WDIA0185E
2009 Pathfinder
DLN-38
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
P1813 4WD SHIFT SWITCH
3.
Operate 4WD shift switch and check continuity between 4WD
shift switch terminals.
OK or NG
OK
>> GO TO 5.
NG
>> Replace 4WD shift switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
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
DLN-136, "Removal and Installation"
.
Component Inspection
INFOID:0000000003937212
4WD SHIFT SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect 4WD shift switch harness connector.
3.
Operate 4WD shift switch and check continuity between 4WD
shift switch terminals.
Connector
Terminal
Condition
Continuity
M141
1 - 2
4WD shift switch: 2WD
Yes
4WD shift switch: AUTO, 4H and
4LO
No
1 - 3
4WD shift switch: AUTO
Yes
4WD shift switch: 2WD, 4H and
4LO
No
1 - 4
4WD shift switch: 2WD
No
4WD shift switch: AUTO, 4H and
4LO
Yes
1 - 5
4WD shift switch: 4H
Yes
4WD shift switch: 2WD, AUTO,
and 4LO
No
1 - 6
4WD shift switch: 4LO
Yes
4WD shift switch: 2WD, AUTO and
4H
No
WDIA0168E
WDIA0168E
2009 Pathfinder
P1813 4WD SHIFT SWITCH
DLN-39
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
4.
If NG, replace the 4WD shift switch.
Connector
Terminal
Condition
Continuity
M141
1 - 2
4WD shift switch: 2WD
Yes
4WD shift switch: AUTO, 4H and
4LO
No
1 - 3
4WD shift switch: AUTO
Yes
4WD shift switch: 2WD, 4H and
4LO
No
1 - 4
4WD shift switch: 2WD
No
4WD shift switch: AUTO, 4H and
4LO
Yes
1 - 5
4WD shift switch: 4H
Yes
4WD shift switch: 2WD, AUTO,
and 4LO
No
1 - 6
4WD shift switch: 4LO
Yes
4WD shift switch: 2WD, AUTO and
4H
No
2009 Pathfinder
DLN-40
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
P1814 WAIT DETECTION SWITCH
P1814 WAIT DETECTION SWITCH
Description
INFOID:0000000003937213
The wait detection switch detects if the transfer case is in 4WD. DTC P1814 will set if an improper signal from
the wait detection switch is input due to open or short circuit.
DTC Logic
INFOID:0000000003937214
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Perform self-diagnosis.
Is DTC P1814 detected?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000003937215
1.
CHECK WAIT DETECTION SWITCH SIGNAL
With CONSULT-III
1.
Start engine.
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
3.
Read out the value of “WAIT DETCT SW”.
Without CONSULT-III
1.
Start engine.
2.
Check voltage between transfer control unit harness connector
terminal and ground.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1814]
4WD DETECT SWITCH
Improper signal from wait detection
switch is input due to open or short cir-
cuit.
Refer to
.
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 operat-
ing.)
OFF
→
ON
4WD shift switch: 4LO to 4H
(While actuator motor is operat-
ing.)
ON
→
OFF
4WD shift switch: 4LO
ON
SDIA2701E
2009 Pathfinder
P1814 WAIT DETECTION SWITCH
DLN-41
< COMPONENT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and the wait detection switch harness connector.
3.
Check continuity between transfer control unit harness connec-
tor M153 terminal 43 and wait detection switch harness connec-
tor F59 terminal 10.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect wait detection switch harness connector.
3.
Check continuity between wait detection switch harness con-
nector F59 terminal 11 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 WAIT DETECTION SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect wait detection switch harness connector.
3.
Remove wait detection switch. Refer to
DLN-18, "Component Parts Location"
.
Connector
Terminal
Condition
Voltage
(Approx.)
M153
43 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
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
Continuity should exist.
SDIA2702E
Continuity should exist.
SDIA2703E
2009 Pathfinder
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