open hood INFINITI QX56 2008 Factory Service Manual

DLK-4
BACK DOOR CLOSE SWITCH SYSTEM .......133
Diagnosis Procedure ........................................... ..133
BACK DOOR SWITCH ....................................134
Diagnosis Procedure ........................................... ..134
CINCH LATCH MOTOR SYSTEM ...................135
Diagnosis Procedure ........................................... ..135
INTELLIGENT KEY UNIT POWER BACK
DOOR INPUT SIGNAL ....................................
136
Description ........................................................... ..136
Diagnosis Procedure .............................................136
INTELLIGENT KEY UNIT POWER BACK
DOOR OUTPUT SIGNAL ................................
137
Description ........................................................... ..137
Diagnosis Procedure .............................................137
HOMELINK UNIVERSAL TRANSCEIVER ......138
Wiring Diagram .................................................... ..138
Description .............................................................139
Component Function Check ................................140
Diagnosis Procedure .............................................140
ECU DIAGNOSIS ..................................... ..142
BCM (BODY CONTROL MODULE) ............... .142
Reference Value .................................................. ..142
Terminal Layout .....................................................144
Physical Values .....................................................144
Wiring Diagram — POWER DOOR LOCK SYS-
TEM — ..................................................................
150
Fail Safe ................................................................162
DTC Inspection Priority Chart .............................163
DTC Index ........................................................... ..163
INTELLIGENT KEY UNIT ................................165
Reference Value - Intelligent Key Unit ................. ..165
Reference Value - Steering Lock Solenoid ............168
Wiring Diagram — INTELLIGENT KEY SYSTEM
— ......................................................................... ..
169
Fail Safe ................................................................186
BACK DOOR CONTROL UNIT .......................187
Reference Value .................................................. ..187
Wiring Diagram—AUTOMATIC BACK DOOR
SYSTEM— ............................................................
189
Fail Safe .............................................................. ..199
SYMPTOM DIAGNOSIS ............................200
INTELLIGENT KEY SYSTEM SYMPTOMS ... .200
Symptom Table ................................................... ..200
DOOR LOCK FUNCTION SYMPTOMS ..........201
DOOR LOCK AND UNLOCK SWITCH ................. ..201
DOOR LOCK AND UNLOCK SWITCH : Symptom
Table ......................................................................
201
INTELLIGENT KEY ................................................ ..202
INTELLIGENT KEY : Symptom Table ..................202
BACK DOOR OPENER FUNCTION ................204
BACK DOOR OPENER SWITCH .......................... .204
BACK DOOR OPENER SWITCH : Symptom Ta-
ble ........................................................................ .
204
BACK DOOR SWITCH ........................................... .204
BACK DOOR SWITCH : Symptom Table .............205
INTELLIGENT KEY ................................................ .205
INTELLIGENT KEY : Symptom Table ..................205
WARNING FUNCTION SYMPTOMS ...............206
Symptom Table .................................................... .206
KEY REMINDER FUNCTION SYMPTOMS .....209
Symptom Table .................................................... .209
HAZARD FUNCTION ..................................... ..210
Symptom Table .................................................... .210
HORN FUNCTION ............................................211
Symptom Table .................................................... .211
HOMELINK UNIVERSAL TRANSCEIVER ......212
Symptom Table .................................................... .212
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
213
Work Flow ............................................................ .213
Inspection Procedure ............................................215
Diagnostic Worksheet ...........................................217
PRECAUTION ...........................................219
PRECAUTIONS .............................................. ..219
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
219
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
219
Precaution for work ...............................................220
PREPARATION .........................................221
PREPARATION .............................................. ..221
Special Service Tool ............................................ .221
Commercial Service Tool ......................................222
ON-VEHICLE REPAIR ..............................223
HOOD ............................................................. ..223
Fitting Adjustment ................................................ .223
Removal and Installation of Hood Assembly ........224
Removal and Installation of Hood Lock Control ....225
Hood Lock Control Inspection ...............................226
DOOR ............................................................. ..228
Fitting Adjustment ................................................ .228
Removal and Installation .......................................229
Revision: March 2010 2008 QX56

DLK-16
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
ALKIA0579ZZ
1. Horn E3
(view with hood open) 2. IPDM E/R E122, E124
(view with cover removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

DOOR LOCK FUNCTIONDLK-21
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DLK
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INTELLIGENT KEY : Co mponent DescriptionINFOID:0000000001538917
ALKIA0579ZZ
1. Horn E3
(view with hood open) 2. IPDM E/R E122, E124
(view with co ver removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

DLK-32
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
INTELLIGENT KEY : Component Description
INFOID:0000000001538925
ALKIA0579ZZ
1. Horn E3 (view with hood open) 2. IPDM E/R E122, E124
(view with cover removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

WARNING FUNCTIONDLK-39
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DLK
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O PALKIA0579ZZ
1. Horn E3 (view with hood open) 2. IPDM E/R E122, E124
(view with co ver removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

DLK-42
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEY REMINDER FUNCTION
ALKIA0579ZZ
1. Horn E3
(view with hood open) 2. IPDM E/R E122, E124
(view with cover removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

HAZARD AND BUZZER REMINDER FUNCTIONDLK-45
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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O PALKIA0579ZZ
1. Horn E3 (view with hood open) 2. IPDM E/R E122, E124
(view with co ver removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

DLK-224
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
HOOD
CLEARANCE AND SURFACE HEIGHT ADJUSTMENT
1. Remove the front grille. Refer to
EXT-17, "Removal and Installation".
2. Remove the hood lock assembly and adjust the height by rotating the bumper rubber until the hood clear- ance of hood and fender becomes 1 mm (0.04 in) lower than fitting standard dimension.
3. Temporarily tighten the hood lock, and position it by engaging it with the hood striker. Check the lock and striker for looseness, and tighten the lock mounting bolt to the specified torque.
4. Adjust the clearance and surface height of hood and fender according to \
the fitting standard dimension by rotating right and left bumper rubbers.
CAUTION:
Adjust right/left gap between hood and each part to the following specification.
5. Install the front grille. Refer to EXT-17, "
Removal and Installation".
HOOD LOCK ADJUSTMENT
1. Remove the front grille. Refer to EXT-17, "Removal and Installation".
2. Move the hood lock to the left or right so that striker center is vertically aligned with hood lock center (when viewed from vehicle front).
3. Make sure the secondary latch is properly engaged with the sec- ondary striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height or by pressing it lightly approx.
3 kg (29 N, 7lb).
CAUTION:
Do not drop the hood from 300 mm (11.81 in) height or
higher.
4. After adjusting hood lock, tighten the lock bolts.
5. Install the front grille. Refer to EXT-17, "
Removal and Installa-
tion".
Removal and Installation of Hood AssemblyINFOID:0000000001542677
1. Support the hood striker with proper material to prevent it from falling.
WARNING:
Body injury may occur if no supporting rod is holding the
hood open when removing the damper stay.
2. Remove the hinge nuts from the hood to remove the hood assembly.
CAUTION:
Operate with two workers, because of its heavy weight.
Installation is in the reverse order of removal.
HOOD STAY
Disposal
Hood and headlamp (B–B) : Less than 2.0 mm
PIIA3806E
LIIA1443E
Revision: March 2010 2008 QX56

DLK-226
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
HOOD
1. Remove the front fender protector (LH). Refer to
EXT-23, "Removal and Installation".
2. Disconnect the hood lock primary and secondary hood lock cables from the hood lock. Unclip the primary
cable from the radiator core support upper and hood ledge.
3. Remove the hood lock assembly.
4. Remove the secondary hood lock release assembly.
5. Remove the grommet from the dash lower, and pull the primary hood lock cable into the passenger room.
CAUTION:
While pulling, be careful not to dama ge the outside of the hood lock cable.
INSTALLATION
1. Pull the hood lock cable through the dash lower hole into the engine room.
Be careful not to bend the cable too much, keeping the radius
100mm (3.94 in) or more.
2. Make sure the cable is not offset from the positioning grommet, and push the grommet into the dash lower hole securely.
3. Apply sealant around the grommet at * mark.
4. Install the primary and secondary cables securely to the hood lock.
5. Install the hood lock and the secondary hood lock release assemblies.
6. Check the hood lock adjustment and hood opener operation. Refer to DLK-223, "
Fitting Adjustment".
Hood Lock Control InspectionINFOID:0000000001542679
CAUTION:
If the hood lock cable is bent or deformed, replace it.
1. Remove the front grille. Refer to EXT-17, "
Removal and Installation".
2. Make sure the secondary latch is properly engaged with the sec- ondary striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height.
3. While operating the hood opener, carefully make sure the front end of the hood is raised by approx. 20 mm (0.79 in). Also make
sure the hood opener returns to the original position.
PIIA0173E
PIIA0174E
PIIA1086E
Revision: March 2010 2008 QX56

INSPECTION AND ADJUSTMENTEC-13
< BASIC INSPECTION > [VK56DE]
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INSPECTION AND ADJUSTMENT
Basic InspectionINFOID:0000000001351329
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leaks
- Air cleaner clogging
- Gasket
3. Confirm that electrical or mechanical loads are not applied.
- Headlamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no load.
6. Make sure that no DTC is displayed with CONSULT-III or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
3.CHECK TARGET IDLE SPEED
With CONSULT-III
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U
Revision: March 2010 2008 QX56