2009 INFINITI QX56 Factory Service Manual

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Page 1161 of 4171

INFINITI QX56 2009 Factory Service Manual
4WD WARNING LAMP DOES NOT TURN ONDLN-105
< SYMPTOM DIAGNOSIS > [ATX14B]
C
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G H
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M A
B
DLN
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4WD WARNING LAMP DOES NOT TURN ON
DescriptionINFOID:0000000003772164
4WD warning lamp does not

Page 1162 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-106
< SYMPTOM DIAGNOSIS >[ATX14B]
4WD WARNING LAMP DOES NOT TURN ON
Are the inspection results normal?
YES >> Inspection End.
NO >> Check transfer control unit pin terminals fo
r damage or loose

Page 1163 of 4171

INFINITI QX56 2009 Factory Service Manual
4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT CHANGE
DLN-107
< SYMPTOM DIAGNOSIS > [ATX14B]
C
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G H
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M A
B
DLN
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4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT
CHANGE
Desc

4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT CHANGE
DLN-107
< SYMPTOM DIAGNOSIS > [ATX14B]
C
EF
G H
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K L
M A
B
DLN
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4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT
CHANGE
DescriptionINFOID:0000000003772166
4WD shift indicator lamp or 4LO indicator lamp do not change when switching the 4WD shift switch.
Diagnosis ProcedureINFOID:0000000003772167
1.CONFIRM THE SYMPTOM
Confirm 4WD shift indicator lamp and 4LO indicator lamp turn on when ignition switch is turned to ON.
Do 4WD shift indicator lamp and 4LO indicator lamp turn on?
YES >> GO TO 2.
NO >> Refer to DLN-103, "Diagnosis Procedure"
.
2.CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD sh ift switch system. Refer to DLN-31, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait det ection switch system. Refer to DLN-35, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.CHECK SYSTEM FOR NEUTRAL-4LO SWITCH
Perform trouble diagnosis for neutral-4LO switch system. Refer to DLN-28, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 5.
NO >> Repair or replace damaged parts.
5.CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to DLN-116, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 6.
NO >> Repair or replace damaged parts.
6.CHECK SYSTEM FOR 2-4WD SOLENOID
Perform trouble diagnosis for 2-4W D solenoid system. Refer to DLN-57, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 7.
NO >> Repair or replace damaged parts.
7.CHECK SYSTEM FOR TRANSFER CONTROL DEVICE
Perform trouble diagnosis for transfer control device system. Refer to DLN-48, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 8.
NO >> Repair or replace damaged parts.
8.CHECK SYSTEM FOR ACTUATOR MOTOR
Perform trouble diagnosis for actuator motor system. Refer to DLN-39, "Diagnosis Procedure"
.
Are the inspection results normal?
YES >> GO TO 9.
NO >> Repair or replace damaged parts.
Revision: December 20092009 QX56

Page 1164 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-108
< SYMPTOM DIAGNOSIS >[ATX14B]
4WD SHIFT INDICATOR LAMP OR 4L
O INDICATOR LAMP DO NOT CHANGE
9.CHECK SYSTEM FOR ACTUATOR POSITION SWITCH
Perform trouble diagnosis for actuator position switch

Page 1165 of 4171

INFINITI QX56 2009 Factory Service Manual
ATP WARNING LAMP DOES NOT TURN ONDLN-109
< SYMPTOM DIAGNOSIS > [ATX14B]
C
EF
G H
I
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K L
M A
B
DLN
N
O P
ATP WARNING LAMP DOES NOT TURN ON
DescriptionINFOID:0000000003772168
ATP warning lamp does not

Page 1166 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-110
< SYMPTOM DIAGNOSIS >[ATX14B]
ATP WARNING LAMP DOES NOT TURN ON
- Transfer control unit harness
connector E143 (B) terminal 40
and combination meter harness connector M23 (A) terminal 44.
Al

Page 1167 of 4171

INFINITI QX56 2009 Factory Service Manual
4WD SHIFT INDICATOR LAMP KEEPS FLASHINGDLN-111
< SYMPTOM DIAGNOSIS > [ATX14B]
C
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G H
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M A
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DLN
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4WD SHIFT INDICATOR LAMP KEEPS FLASHING
DescriptionINFOID:0000000003772170
The 4WD shift

Page 1168 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-112
< SYMPTOM DIAGNOSIS >[ATX14B]
4WD WARNING LAMP FLASHES RAPIDLY
4WD WARNING LAMP FLASHES RAPIDLY
DescriptionINFOID:0000000003772172
The 4WD warning lamp flashes quickly while driving (2 times

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