Nissan Pathfinder (2012 year). Manual — part 187
P1822 CLUTCH PRESSURE SOLENOID
DLN-61
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
Are the inspection results normal?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND CLUTCH PRESSURE SOLENOID
VALVE
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector, transfer terminal cord assembly harness connector
and transfer dropping resistor.
3. Check continuity between transfer control unit harness connec-
tor M152 terminal 19 and transfer terminal cord assembly har-
ness connector F56 terminal 6.
4. Check continuity between transfer dropping resistor harness
connector E135 terminal 2 and transfer terminal cord assembly
harness connector F56 terminal 6.
Also check harness for short to ground and short to power.
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER DROPPING RESISTOR
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and transfer dropping resistor harness connector.
Connector
Terminal
Condition
Voltage
(Approx.)
M152
10 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
N position
• Brake pedal de-
pressed
4WD shift switch:
AUTO
4 - 14V
4WD shift switch:
2WD, 4H or 4LO
Less than
1V
19 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
N position
• Brake pedal de-
pressed
4WD shift switch:
AUTO
1.5 - 3V
4WD shift switch:
2WD, 4H or 4LO
Less than
1V
Continuity should exist.
SDIA2720E
Continuity should exist.
SDIA2721E
August 2012
2012 Pathfinder
DLN-62
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
P1822 CLUTCH PRESSURE SOLENOID
3. Check continuity between transfer control unit harness connec-
tor M152 terminal 10 and transfer dropping resistor harness
connector E135 terminal 1.
Also check harness for short to ground and short to power.
Are the inspection results normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
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 ground and short to power.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power
in harness or connectors.
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.
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> 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.
Are the inspection results normal?
YES
>> GO TO 7.
NO
>> Replace transfer dropping resistor.
7.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Continuity should exist.
SDIA2722E
Continuity should exist.
SDIA2723E
6 - 19
: Approx. 3.0 - 3.4
Ω
WDIA0225E
1 - 2
: Approx. 11.2 - 12.8
Ω
SDIA2725E
August 2012
2012 Pathfinder
P1822 CLUTCH PRESSURE SOLENOID
DLN-63
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
Are the inspection results normal?
YES
>> GO TO 8.
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.
8.
CHECK DTC
Drive the vehicle and then perform self-diagnosis.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Replace transfer control unit. Refer to
DLN-140, "Removal and Installation"
Component Inspection
INFOID:0000000007357401
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 the inspection results are abnormal replace clutch pressure
DLN-19, "Component Parts Location"
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 the inspection results are abnormal replace transfer dropping
resistor. Refer to
DLN-19, "Component Parts Location"
.
6 - 19
: Approx. 3.0 - 3.4
Ω
WDIA0225E
1 - 2
: Approx. 11.2 - 12.8
Ω
SDIA2725E
August 2012
2012 Pathfinder
DLN-64
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
P1823 2-4 SOLENOID
P1823 2-4 SOLENOID
Description
INFOID:0000000007357402
Proper voltage is not applied to the 2-4WD solenoid valve due to an open or short circuit.
DTC Logic
INFOID:0000000007357403
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1823 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000007357404
Regarding Wiring Diagram information, refer to
1.
CHECK 4WD SHIFT SWITCH SYSTEM
Perform self-diagnosis. Refer to
DLN-23, "CONSULT Function (ALL MODE AWD/4WD)"
Is the "4WD MOD SW [P1814]" (with CONSULT) or "Flickering pattern:16" (without CONSULT) detected?
YES
>> Perform trouble diagnosis for 4WD shift switch. Refer to
.
NO
>> GO TO 2
2.
CHECK 2-4WD SHIFT SOLENOID SIGNAL
With CONSULT
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT.
3. Read out the value of “2-4WD SOL” and “2-4WD SOL MON”.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1823]
2-4WD SOLENOID
Proper voltage is not applied to 2-4WD
solenoid valve due to open or short cir-
cuit.
Refer to
.
Monitored
item
Condition
Display
value
2-4WD SOL
• Vehicle stopped
• Engine running
• A/T selector lever “N”
position
• Brake pedal de-
pressed
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 operating.)
OFF
4WD shift switch: 4H (“Wait”
function is operating.)
OFF
August 2012
2012 Pathfinder
P1823 2-4 SOLENOID
DLN-65
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
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M
A
B
DLN
N
O
P
Without CONSULT
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.
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
DLN-40, "Component Inspection"
.
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.
2-4WD SOL
MON
• Vehicle stopped
• Engine running
• A/T selector lever “N”
position
• Brake pedal de-
pressed
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 operating.)
OFF
4WD shift switch: 4H (“Wait”
function is operating.)
OFF
Monitored
item
Condition
Display
value
Connector
Terminal
Condition
Voltage
(Approx.)
M152
1 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 2WD 0V
4WD shift switch: AU-
TO, 4H or 4LO
Battery
voltage
SDIA2728E
Connector
Terminal
Condition
Voltage (Ap-
prox.)
M141
4 - ground
4WD shift switch: AUTO, 4H or 4LO Battery voltage
4WD shift switch: 2WD
0V
SDIA2729E
August 2012
2012 Pathfinder
DLN-66
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
P1823 2-4 SOLENOID
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 AS-
SEMBLY
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.
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
.
7.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
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
DLN-140, "Removal and Installation"
.
Continuity should exist.
SDIA2731E
Continuity should exist.
SDIA2732E
4 - 5
: Approx. 22.8 - 25.2
Ω
SDIA3253E
August 2012
2012 Pathfinder
P1823 2-4 SOLENOID
DLN-67
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
Component Inspection
INFOID:0000000007357405
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
SDIA3253E
August 2012
2012 Pathfinder
DLN-68
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX14B]
P1824 TRANSFER MOTOR
P1824 TRANSFER MOTOR
Description
INFOID:0000000007357406
Motor does not operate properly due to open or short circuit in transfer motor or transfer motor relay.
DTC Logic
INFOID:0000000007357407
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1824 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000007357408
Regarding Wiring Diagram information, refer to
1.
CHECK TRANSFER MOTOR RELAY SIGNAL
With CONSULT
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT.
3. Read out the value of “MOTOR RELAY” and “MOTOR RELAY MON”.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1824]
MOTOR RELAY
Motor does not operate properly due to
open or short circuit in transfer motor or
transfer motor relay.
Refer to
.
Monitored
item
Condition
Display value
(Approx.)
MOTOR
RELAY
• Accelerator ped-
al depressed
• Vehicle stopped
• Engine running
• Brake pedal de-
pressed
4WD shift switch: 2WD
OFF
4WD shift switch: AUTO or
4LO (A/T selector lever “P” or
“N” position)
OFF
("ON" for ap-
prox. 2 sec. af-
ter 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 se-
lector lever “P” position)
OFF
("ON" for ap-
prox. 2 sec. af-
ter shifting to
“P”.)
4WD shift switch: 4H (Except
for A/T selector lever “P” posi-
tion)
ON
August 2012
2012 Pathfinder
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