Nissan Pathfinder (2011 year). Manual — part 209
DLN-210
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1802 – P1804, P1809 TRANSFER CONTROL UNIT
Do the self-diagnostic results indicate AD converter?
YES
>> Replace transfer control unit. Refer to
DLN-277, "Removal and Installation"
.
NO
>> Inspection End.
2011 Pathfinder
P1807 VEHICLE SPEED SENSOR (A/T)
DLN-211
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
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P1807 VEHICLE SPEED SENSOR (A/T)
Description
INFOID:0000000006245068
The transmission control module (TCM) transmits the output shaft revolution signal via CAN communication to
Transfer control unit. DTC P1807 will set when a malfunction is detected in the output shaft revolution signal
or an improper signal is input while driving.
DTC Logic
INFOID:0000000006245069
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1807 detected?
YES
>> Perform diagnosis procedure. Refer to
DLN-211, "Diagnosis Procedure"
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000006245070
1.
CHECK DTC WITH TCM
Perform self-diagnosis with TCM. Refer to
TM-36, "CONSULT-III Function (TRANSMISSION)"
.
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
Are the inspection results normal?
YES
>> GO TO 3.
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.
3.
CHECK DTC
Drive vehicle and then perform Self-diagnosis.
Is DTC P1807 displayed?
YES
>> Perform self-diagnosis with TCM again.
NO
>> Inspection End.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1807]
VHCL SPEED SEN·AT
• Malfunction is detected in output shaft
revolution signalthat is output from
TCM through CAN communication.
• Improper signal is input while driving.
2011 Pathfinder
DLN-212
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1808 VEHICLE SPEED SENSOR (ABS)
P1808 VEHICLE SPEED SENSOR (ABS)
Description
INFOID:0000000006245071
The ABS actuator and electric unit (control unit) transmits a vehicle speed signal via CAN communication to
the transfer control unit. DTC P1808 sets when a malfunction is detected in the vehicle speed signal that is
output from the ABS actuator and electric unit (control unit) or an improper signal is input while driving.
DTC Logic
INFOID:0000000006245072
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC “P1808 displayed?
YES
>> Perform diagnosis procedure. Refer to
DLN-212, "Diagnosis Procedure"
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000006245073
1.
CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit) for specific BRC system type.
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
Are the inspection results normal?
YES
>> GO TO 3.
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.
3.
CHECK DTC
Drive vehicle and then perform Self-diagnosis.
Is DTC P1808 displayed?
YES
>> Perform self-diagnosis with ABS actuator and electric unit (control unit) for specific BRC system
type.
NO
>> Inspection End.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1808]
VHCL SPEED SEN·ABS
• Malfunction is detected in vehicle
speed signal that is output from ABS
actuator and electric unit (control unit)
through CAN communication.
• Improper signal is input while driving.
2011 Pathfinder
P1810 4 LO SWITCH
DLN-213
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
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P1810 4 LO SWITCH
Description
INFOID:0000000006245074
The 4LO switch detects that the transfer case is in 4LO range. DTC P1810 will set when an improper signal
from the 4LO switch is input due to an open or short circuit.
DTC Logic
INFOID:0000000006245075
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1810 displayed?
YES
>> Perform diagnosis procedure. Refer to
DLN-213, "Diagnosis Procedure"
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000006245076
Regarding Wiring Diagram information, refer to
1.
CHECK 4LO POSITION 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 “4L POSI SW”.
Without CONSULT-III
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminal and ground.
Are the inspection results normal?
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1810]
4L POSI SW TF
Improper signal from 4LO switch is input
due to open or short circuit.
Condition
Display value
• Vehicle stopped
• Engine running
• A/T selector lever “N” position
• Brake pedal depressed
4WD shift switch: 4LO
ON
Except the above
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
M165
24 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4LO
0V
Except the above
Battery
voltage
SDIA3363E
2011 Pathfinder
DLN-214
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1810 4 LO SWITCH
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND 4LO SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the 4LO switch harness connector.
3. Check continuity between transfer control unit harness connec-
tor M165 terminal 24 and 4LO switch harness connector F74
terminal 13.
Also check harness for short to ground and short to power.
Is there continuity?
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 4LO switch harness connector.
3. Check continuity between 4LO switch harness connector F74
terminal 12 and ground.
Also check harness for short to power.
Is there continuity?
YES >> GO TO 4.
NO
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK 4LO SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect 4LO switch harness connector.
3. Remove 4LO switch. Refer to
DLN-198, "Component Parts Location"
4. Push and release 4LO switch and check continuity between
4LO switch terminals 12 and 13.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Replace 4LO switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the 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.
Is DTC P1810 displayed?
Continuity should exist.
SDIA3364E
Continuity should exist.
PDIA0203E
Terminal
Condition
Continuity
12 - 13
Push 4LO switch
Yes
Release 4LO switch
No
PDIA0204E
2011 Pathfinder
P1810 4 LO SWITCH
DLN-215
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
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DLN
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YES
>> Replace transfer control unit. Refer to
DLN-277, "Removal and Installation"
NO
>> Inspection End.
Component Inspection
INFOID:0000000006245077
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect 4LO switch harness connector.
3. Remove 4LO switch. Refer to
DLN-198, "Component Parts Location"
.
4. Push and release 4LO switch and check continuity between
4LO switch terminals 12 and 13.
5. If the inspection results are not normal replace the 4LO switch.
Terminal
Condition
Continuity
12 - 13
Push 4LO switch
Yes
Release 4LO switch
No
PDIA0204E
2011 Pathfinder
DLN-216
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1813 4WD SHIFT SWITCH
P1813 4WD SHIFT SWITCH
Description
INFOID:0000000006245078
The 4WD shift switch allows the driver to select 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:0000000006245079
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
DLN-216, "Diagnosis Procedure"
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000006245080
Regarding Wiring Diagram information, refer to
1.
CHECK 4WD SHIFT SWITCH SIGNAL
With CONSULT-III
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
3. Read out ON/OFF switching action of the “2WD SWITCH”, “4H SWITCH”, “4L SWITCH” with operating
4WD shift switch.
Without CONSULT-III
1. Turn ignition switch “ON”.
2. Check voltage between transfer control unit harness connector
terminals and ground.
Are the inspection results normal?
YES
>> GO TO 5.
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.
Connector
Terminal
Condition
Voltage (Ap-
prox.)
M165
14 - Ground
4WD shift switch: 2WD
Battery voltage
4WD shift switch: 4H and 4LO
0V
15 - Ground
4WD shift switch: 4H
Battery voltage
4WD shift switch: 2WD and 4LO
0V
16 - Ground
4WD shift switch: 4LO
Battery voltage
4WD shift switch: 2WD and 4H
0V
SDIA3365E
2011 Pathfinder
P1813 4WD SHIFT SWITCH
DLN-217
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
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NO
>> GO TO 2.
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.
Is there voltage?
YES
>> GO TO 3.
NO
>> 1. Check harness for short or open between 4WD shift
switch harness connector terminal 1 and transfer
shut off relay 2 harness connector E157 terminal 5
and 10A fuse (No. 61 located in the fuse block). If any items are damaged, repair or replace
damaged parts.
2. Perform trouble diagnosis for power supply circuit. Refer to
DLN-206, "Diagnosis Procedure"
.
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 M165 terminal 14 and
4WD shift switch harness connector M138 terminal 3.
-
Transfer control unit harness connector M165 terminal 15 and
4WD shift switch harness connector M138 terminal 5.
-
Transfer control unit harness connector M165 terminal 16 and
4WD shift switch harness connector M138 terminal 6.
Also check harness for short to ground and short to power.
Is there continuity?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK 4WD SHIFT SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove 4WD shift switch harness connector.
Connector
Terminal
Voltage (Approx.)
M138
1 - Ground
0V
SDIA2803E
Connector
Terminal
Voltage (Approx.)
M138
1 - Ground
Battery voltage
SDIA2802E
Continuity should exist.
SDIA3366E
2011 Pathfinder
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