Infiniti QX56 (JA60). Manual — part 286
P1824 TRANSFER MOTOR
DLN-67
< COMPONENT DIAGNOSIS >
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove transfer motor. Refer to
DLN-140, "Removal and Installation"
3. Apply 12V direct current between transfer motor terminals 14
and 15.
4. If transfer motor does not operate, replace transfer motor.
LDIA0097E
DLN-68
< COMPONENT DIAGNOSIS >
[ATX14B]
P1826 TRANSFER FLUID TEMPERATURE
P1826 TRANSFER FLUID TEMPERATURE
Description
INFOID:0000000005148829
Signal voltage from the transfer fluid temperature sensor is abnormally high (Transfer fluid temperature is
abnormally low) while driving.
DTC Logic
INFOID:0000000005148830
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1826 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005148831
Regarding Wiring Diagram information, refer to
DLN-89, "Wiring Diagram - ALL-MODE 4WD SYSTEM -"
.
1.
CHECK TRANSFER FLUID TEMPERATURE SENSOR 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 FLUID TEMP SE.
Without CONSULT-III
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminals and ground.
Are inspection results normal?
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1826]
OIL TEMP SEN
Signal voltage from transfer fluid temper-
ature sensor is abnormally high (Trans-
fer fluid temperature is abnormally low)
while driving.
Refer to
.
Condition
Display value
(Approx.)
Transfer fluid temperature approx. 20 - 80
°C (68 - 176°F)
1.1 - 0.3V
Connector
Terminal
Condition
Data
(Approx.)
E143
28 -
Ground
Always
0V
31 -
Ground
Ignition switch:
ON
Transfer fluid temperature
approx. 20
°C (68°F)
1.1V
Transfer fluid temperature
approx. 80
°C (176°F)
0.3V
SDIA2742E
P1826 TRANSFER FLUID TEMPERATURE
DLN-69
< COMPONENT DIAGNOSIS >
[ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
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 the following terminals.
-
Transfer control unit harness connector E143 terminal 28 and
transfer terminal cord assembly harness connector F56 terminal
3 .
-
Transfer control unit harness connector E143 terminal 31 and
transfer terminal cord assembly harness connector F56 terminal
2.
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 TRANSFER FLUID TEMPERATURE SENSOR
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 2 and 3.
Are inspection results normal?
YES
>> GO TO 4.
NO
>> Replace transfer fluid temperature sensor. Refer to
DLN-16, "Component Parts Location"
4.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are inspection results normal?
YES
>> GO TO 5.
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.
5.
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-130, "Removal and Installation"
Component Inspection
INFOID:0000000005148832
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer terminal cord assembly harness connector.
Continuity should exist.
SDIA2743E
Temperature
°C (°F)
Resistance (Approx.)
20 (68)
2.5 k
Ω
80 (176)
0.3 k
Ω
WDIA0188E
DLN-70
< COMPONENT DIAGNOSIS >
[ATX14B]
P1826 TRANSFER FLUID TEMPERATURE
3. Check resistance between transfer terminal cord assembly ter-
minals 2 and 3.
4. If the inspection results are abnormal replace the transfer fluid
temperature sensor. Refer to
DLN-16, "Component Parts Loca-
Temperature
°C (°F)
Resistance (Approx.)
20 (68)
2.5 k
Ω
80 (176)
0.3 k
Ω
WDIA0188E
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