2005 INFINITI FX35 Service Manual

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Page 985 of 4731

INFINITI FX35 2005 Service Manual BL-170
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2005 July 2005 FX
BACK DOOR AUTO CLOSURE SYSTEMPFP:90542
Component Parts and Harness Connector LocationAIS004OD
System DescriptionAIS004OE
When back door

Page 986 of 4731

INFINITI FX35 2005 Service Manual BACK DOOR AUTO CLOSURE SYSTEM BL-171
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Revision: 2005 July 2005 FX
OPEN OPERATION
When passenger side door unlock and back door shuts, back door opener switch is

Page 987 of 4731

INFINITI FX35 2005 Service Manual BL-172
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2005 July 2005 FX
Wiring Diagram — B/CLOS —AIS004OF
TIWH0047E

Page 988 of 4731

INFINITI FX35 2005 Service Manual BACK DOOR AUTO CLOSURE SYSTEM BL-173
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Revision: 2005 July 2005 FX
TIWH0048E

Page 989 of 4731

INFINITI FX35 2005 Service Manual BL-174
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for Back Door Closure Control UnitAIS004OG
*, (): Models with Intelligent Key Te r m i -
nal Wire
col

Page 990 of 4731

INFINITI FX35 2005 Service Manual BACK DOOR AUTO CLOSURE SYSTEM BL-175
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Revision: 2005 July 2005 FX
Work FlowAIS004OH
1. Check the symptom and customers requests.
2. Understand the outline of s

BACK DOOR AUTO CLOSURE SYSTEM BL-175
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Work FlowAIS004OH
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-170, "
System Description" .
3. Perform the preliminary check, Refer to BL-175, "
Preliminary Check"
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to BL-175,
"Trouble Diagnosis Chart by Symptom" .
5. Does back door auto closure system operate normally? If Yes, GO TO 6, If No, GO TO 4.
6. INSPECTION END
Preliminary CheckAIS004OI
Remove the fuse No.18 for the back door closure with the back door closure inactive.
Check that the back door can be open / close normally.
CAUTION:
It is judged it is abnormal, discontinues closure operation, and drive lever returns to a neutral position
if not becoming full-latch within about three seconds after half-latch.
When this operation is done continuously three times, both back door closure and back door opener
switch are not operated because the function of back door closure is stopped.
Thing to reset power supply by pulling out and opening fuse in that case.
Trouble Diagnosis Chart by SymptomAIS004OJ
Symptom Diagnostic procedure and repair order Refer to page
Back door closure does not operate. 1.Back door closure motor power supply and ground
circuit check BL-176
2. Half-latch switch check
BL-176
3. Close switch checkBL-178
4. Open switch check.BL-179
5. Closure motor check.BL-185
6. Replace back door closure control unit.BL-185
Back door does not open (with Intelligent Key system). 1. Intelligent Key system check.
BL-1182. Back door opener switch check.BL-180
Back door does not open 1. Back door opener switch check.
BL-1822. Unlock sensor check.BL-184
3. Replace back door closure control unit.BL-185
Back door does not enter fully closed states through
back door closure operates. 1.Back door fitting adjustment.
BL-164
2. Replace back door lock assembly.BL-168

Page 991 of 4731

INFINITI FX35 2005 Service Manual BL-176
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2005 July 2005 FX
Back Door Closure Control Unit Power Supply and Ground Circuit CheckAIS004OK
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF

Page 992 of 4731

INFINITI FX35 2005 Service Manual BACK DOOR AUTO CLOSURE SYSTEM BL-177
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Revision: 2005 July 2005 FX
2. CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and back door closure

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