2007 INFINITI QX56 ABS

EC-538
< SERVICE INFORMATION >
DTC P1574 ASCD VEHICLE SPEED SENSOR
Diagnosis Procedure
INFOID:0000000003532077
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT-39, "
OBD-II Diagnostic Trouble Code (DTC)".
OK or NG
OK >> GO TO 2.
NG >> Perform trouble shooting relevant to DTC indicated.
2.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Refer to BRC-11
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3.CHECK COMBINATION METER FUNCTION
Check combination meter function.
Refer to DI-5
.
>>INSPECTION END

EI-12
< SERVICE INFORMATION >
FRONT BUMPER
FRONT BUMPER
Removal and InstallationINFOID:0000000003533122
REMOVAL
1. Disconnect the negative battery cable.
2. Remove side screws from front fascia assembly.
3. Remove screws from front of fender protector. Refer to EI-22
.
4. Remove fog turn/fog lamp finisher and fog turn/fog lamp.
1. Lower energy absorber 2. Front bumper side bracket RH 3. Front bumper stay RH
4. Upper bumper reinforcement 5. Clip C103 6. Upper energy absorber (part of up-
per bumper reinforcement)
7. Clip CS101 8. Front fascia assembly 9. Engine undercover
10. Front fascia bracket 11. License plate bracket 12. Fog turn/fog lamp finisher LH/RH
13. Fog turn/fog lamp 14. Front bumper stay LH 15. Front bumper side bracket LH
16. Headlamp finisher (RH shown)
WIIA0952E

FRONT BUMPER
EI-13
< SERVICE INFORMATION >
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• Disconnect harnesses.
5. Remove engine undercover.
6. Remove fasteners, release clips and remove front fascia assembly.
7. Remove plastic clips and remove upper energy absorber.
8. Remove upper bumper reinforcement.
9. Remove plastic clips and remove lower energy absorber.
10. Remove front bumper stays and front bumper side brackets, LH and RH.
INSTALLATION
Installation is in the reverse order of removal.

EI-14
< SERVICE INFORMATION >
REAR BUMPER
REAR BUMPER
Removal and InstallationINFOID:0000000003533123
1. Retainer assembly 2. Clip C103 3. S clip
4. Reinforcement assembly 5. Energy absorber 6. Sonar sensor
7. Quarter panel trim cover LH 8. Drafter duct 9. Retainer clip
WIIA0953E

REAR BUMPER
EI-15
< SERVICE INFORMATION >
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REMOVAL
1. Disconnect the negative battery cable.
2. Remove quarter panel trim covers LH and RH.
3. Disconnect sonar sensor harness connector under rear fascia assembly.
4. Release retainer clips on both sides of rear fascia assembly with a 1/4 turn and top S clips and remove
fascia assembly.
5. Remove energy absorber.
6. Remove reinforcement assembly.
7. Remove nuts and remove retainer assembly.
• Remove S clips from retainer assembly.
8. Disconnect sonar sensors from sonar sensor retainers.
9. Remove sonar sensors and harness from rear fascia assembly.
• Disconnect sonar sensors from harness.
• Remove sonar sensor retainers from rear fascia assembly.
10. Remove bolts on each side of tow hitch and remove tow hitch.
11. Remove drafter duct from under LH quarter panel.
INSTALLATION
Installation is in the reverse order of removal.
10. Rear fascia assembly 11. Sonar sensor retainer 12. Tow hitch
13. Sonar sensor harness 14. Quarter panel trim cover RH

EM-68
< SERVICE INFORMATION >
CYLINDER HEAD
7. Remove the valve oil seal using Tool.
8. Replace the valve seat if necessary. Refer to EM-69, "
Inspection After Disassembly".
9. Replace the valve guide if necessary. Refer to EM-69, "
Inspection After Disassembly".
10. Remove the spark plug tube, as necessary.
• Remove the spark plug tube out of the cylinder head using suitable tool.
CAUTION:
• Do not damage the cylinder head.
• Do not remove the spark plug tube unless absolutely necessary. Once removed, the spark plug
tube will be deformed and cannot be reused.
ASSEMBLY
1. Install the valve guide if necessary. Refer to EM-69, "Inspection After Disassembly".
2. Install the valve seat if necessary. Refer to EM-69, "
Inspection After Disassembly".
3. Install the valve oil seal using Tool.
• Apply new engine oil on the new valve oil seal joint and seal
lip.
• Install the valve oil seal to the specified height "H".
4. Install the valves in their original position.
5. Install the valve spring seats.
6. Install the valve springs.
• Install the narrow pitch end (paint mark side) to the cylinder
head side.
7. Install the valve spring retainers.Tool number : KV10107902 (J-38959)
WBIA0478E
Tool number : KV10115600 (J-38958)
Height "H" (without valve spring installed)
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
WBIA0490E
SEM085D

DRIVE SHAFT
FAX-7
< SERVICE INFORMATION >
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DRIVE SHAFT
Removal and InstallationINFOID:0000000003532616
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Remove wheel sensor harness from mount on knuckle.
CAUTION:
Do not pull on wheel sensor harness.
4. Without disassembling the hydraulic lines, remove brake caliper using power tool. Reposition it aside with
wire. Refer to BR-19, "
Removal and Installation of Brake Caliper and Disc Rotor" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
5. Remove coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
6. Separate upper link ball joint stud from steering knuckle using
Tool.
• Support lower link with jack.
7. Remove cotter pin, then remove drive shaft nut.
8. Remove drive shaft mounting bolts from front final drive.
9. Remove drive shaft from wheel hub and bearing assembly.
CAUTION:
• When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Also be careful not to exces-
sively extend slide joint.
INSPECTION AFTER REMOVAL
• Move joint up, down, left, right, and in axial direction. Check for any rough movement or significant loose-
ness.
• Check boot for cracks or other damage, and for grease leakage.
• If damaged, disassemble drive shaft to verify damage, and repair
or replace as necessary.
1. Cotter pin 2. Drive shaft nut 3. Drive shaft
LDIA0159E
Tool number : ST29020001 (J-24319-01)
LEIA0095E
RAA0030D

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
FL-7
< SERVICE INFORMATION >
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Disconnect the quick connector as follows:
• Hold the sides of the connector, push in tabs and pull out the
tube.
• If the connector and the tube are stuck together, push and pull
several times until they start to move. Then disconnect them
by pulling.
CAUTION:
• The quick connector can be disconnected when the tabs
are completely depressed. Do not twist the quick connec-
tor more than necessary.
• Do not use any tools to disconnect the quick connector.
• Keep the resin tube away from heat. Be especially careful
when welding near the tube.
• Prevent any acid liquids such as battery electrolyte, from
getting on the resin tube.
• Do not bend or twist the resin tube during connection.
• Do not remove the remaining retainer on the hard tube (or
the equivalent) except when the resin tube or the retainer
is replaced.
• When the resin tube or hard tube, or the equivalent, is
replaced, also replace the retainer with a new one (white
colored retainer).
• To keep the quick connector clean and to avoid damage
and contamination from foreign materials, cover the quick
connector with plastic bags or suitable material as shown.
SFE562A
PBIC1268E
PBIC0163E