Infiniti QX56 (Z62). Manual — part 464
DLN-56
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX90A]
P180C SENSOR POWER SUPPLY (5V)
4.
Check the continuity between transfer rotary position sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace error-detected parts.
6.
CHECK TRANSFER ROTARY POSITION SENSOR POWER SUPPLY (2)
1.
Turn the ignition switch OFF.
2.
Connect transfer lock position sensor harness connector.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Check the voltage between transfer rotary position sensor harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace transfer rotary position sensor. Refer to
DLN-117, "Removal and Installation"
.
7.
CHECK TERMINALS AND HARNESS CONNECTORS
Check the pin terminals for damage or loose connection with each harness connector.
Is the inspection result normal?
YES
>> Replace transfer control unit. Refer to
DLN-107, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
Transfer control unit
Transfer rotary position sensor
Continuity
Connector
Terminal
Connector
Terminal
E59
18
F41
1
Existed
16
2
Transfer rotary position sensor
—
Continuity
Connector
Terminal
F41
1
Ground
Not existed
+
−
Voltage
Transfer rotary position sensor
Connector
Terminal
F41
1
2
Approx. 5 V
P180D TRANSFER ROTARY POSITION SENSOR
DLN-57
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX90A]
C
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A
B
DLN
N
O
P
P180D TRANSFER ROTARY POSITION SENSOR
DTC Logic
INFOID:0000000006222253
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Turn the 4WD shift switch AUTO
⇒
4H
⇒
4LO
⇒
4H
⇒
AUTO.
3.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “P180D” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006222254
1.
CHECK TRANSFER ROTARY POSITION SENSOR SIGNAL
1.
Turn the ignition switch ON.
2.
Check the voltage between transfer control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK TRANSFER ROTARY POSITION SENSOR POWER SUPPLY
1.
Turn the ignition switch OFF.
2.
Disconnect transfer rotary position sensor harness connector.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Check the voltage between transfer rotary position sensor harness connector terminals.
DTC
Display item
Malfunction detected condition
Possible cause
P180D
ROTARY POSITION SEN
Malfunction is detected in transfer rotary
position sensor.
Transfer rotary position sensor
• Transfer rotary position sensor error
• Transfer rotary position sensor circuit
error
+
−
Voltage
Transfer control unit
Connector
Terminal
E59
15
Ground
JPDIE0268GB
+
−
Voltage
Transfer rotary position sensor
Connector
Terminal
F41
1
2
Approx. 5 V
DLN-58
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX90A]
P180D TRANSFER ROTARY POSITION SENSOR
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK TRANSFER ROTARY POSITION SENSOR CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect transfer control unit harness connector.
3.
Check the continuity between transfer control unit harness connector and transfer rotary position sensor
harness connector.
4.
Check the continuity between transfer rotary position sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
4.
CHECK TRANSFER ROTARY POSITION SENSOR SIGNAL CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect transfer control unit harness connector.
3.
Check the continuity between transfer control unit harness connector and transfer rotary position sensor
harness connector.
4.
Check the continuity between transfer rotary position sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
REPLACE TRANSFER ROTARY POSITION SENSOR
1.
Replace transfer rotary position sensor. Refer to
DLN-117, "Removal and Installation"
2.
Perform confirmation procedure again. Refer to
Is DTC “P180D” detected?
YES
>> GO TO 6.
NO
>> INSPECTION END
6.
CHECK TERMINALS AND HARNESS CONNECTORS
Check the pin terminals for damage or loose connection with each harness connector.
Is the inspection result normal?
YES
>> Replace transfer control unit. Refer to
DLN-107, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
Transfer control unit
Transfer rotary position sensor
Continuity
Connector
Terminal
Connector
Terminal
E59
18
F41
1
Existed
16
2
Transfer rotary position sensor
—
Continuity
Connector
Terminal
F41
1
Ground
Not existed
Transfer control unit
Transfer rotary position sensor
Continuity
Connector
Terminal
Connector
Terminal
E59
15
F41
3
Existed
Transfer rotary position sensor
—
Continuity
Connector
Terminal
F41
3
Ground
Not existed
P180E SENSOR POWER SUPPLY (8V)
DLN-59
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: ATX90A]
C
E
F
G
H
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M
A
B
DLN
N
O
P
P180E SENSOR POWER SUPPLY (8V)
Description
INFOID:0000000006222255
Supplies power (8V) to transfer internal speed sensor.
DTC Logic
INFOID:0000000006222256
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch ON.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “P180E” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006222257
1.
CHECK TRANSFER INTERNAL SPEED SENSOR POWER SUPPLY (1)
1.
Turn the ignition switch OFF.
2.
Disconnect transfer control actuator harness connector.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Check the voltage between transfer control actuator harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK TRANSFER INTERNAL SPEED SENSOR CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect transfer control unit harness connector.
3.
Check the continuity between transfer control unit harness connector and transfer control actuator har-
ness connector.
4.
Check the continuity between transfer control actuator harness connector and ground.
DTC
Display item
Malfunction detected condition
Possible cause
P180E
SEN POWER SUPPLY (8V)
When the sensor power supply (8V) volt-
age is lower or higher than normal.
Malfunction of transfer internal speed
sensor power supply circuit (open or
short)
+
−
Voltage
Transfer control actuator
Connector
Terminal
F52
3
7
Approx. 8 V
Transfer control unit
Transfer control actuator
Continuity
Connector
Terminal
Connector
Terminal
E59
39
F52
3
Existed
9
7
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