2010 INFINITI QX56 Factory Service Manual

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Page 1145 of 4210

INFINITI QX56 2010 Factory Service Manual P1824 TRANSFER MOTORDLN-63
< COMPONENT DIAGNOSIS > [ATX14B]
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Without CONSULT-III
1. Start engine.
2. Check voltage between transfer control unit harness connector termi

Page 1146 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-64
< COMPONENT DIAGNOSIS >[ATX14B]
P1824 TRANSFER MOTOR
Are the inspection results normal?
YES >> GO TO 7.
NO >> GO TO 2.
2.CHECK TRANSFER MOTOR RE
LAY POWER SUPPLY CIRCUIT
1. Turn ignition switc

Page 1147 of 4210

INFINITI QX56 2010 Factory Service Manual P1824 TRANSFER MOTORDLN-65
< COMPONENT DIAGNOSIS > [ATX14B]
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• Battery and ignition switch.
3.CHECK TRANSFER MOTOR RELAY
1. Turn ignition switch OFF.
2. Remove transf

Page 1148 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-66
< COMPONENT DIAGNOSIS >[ATX14B]
P1824 TRANSFER MOTOR
3. Check continuity between transfer motor harness connector F57
terminal 15 and ground.
Also check harness for short to ground and short to

Page 1149 of 4210

INFINITI QX56 2010 Factory Service Manual P1824 TRANSFER MOTORDLN-67
< COMPONENT DIAGNOSIS > [ATX14B]
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1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove transfer motor. Refer to DLN-140, "

Page 1150 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-68
< COMPONENT DIAGNOSIS >[ATX14B]
P1826 TRANSFER FLUID TEMPERATURE
P1826 TRANSFER FLUID TEMPERATURE
DescriptionINFOID:0000000005148829
Signal voltage from the transfer fluid temperature sensor is

Page 1151 of 4210

INFINITI QX56 2010 Factory Service Manual P1826 TRANSFER FLUID TEMPERATUREDLN-69
< COMPONENT DIAGNOSIS > [ATX14B]
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YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN TRANSF ER CONTROL UNIT AND TRANSFER TER

P1826 TRANSFER FLUID TEMPERATUREDLN-69
< COMPONENT DIAGNOSIS > [ATX14B]
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YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN TRANSF ER CONTROL UNIT AND TRANSFER TERMINAL CORD AS-
SEMBLY
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit har ness 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 DLN-81, "
Reference Value".
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 InspectionINFOID: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 kΩ
80 (176) 0.3 kΩ
WDIA0188E
Revision: April 20092010 QX56

Page 1152 of 4210

INFINITI QX56 2010 Factory Service Manual 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 repla

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