2008 INFINITI FX35 ECU

ATC-134
< SERVICE INFORMATION >
REFRIGERANT LINES
6. Disconnect one-touch joints.
a. Set a disconnector [high-pressure side (SST: 9253089908), low-pressure side (SST: 9253089916)] on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it. CAUTION:
Cap or wrap the joint of low-pressure pipe 1 and high-pres-
sure pipe 2 with suitable material such as vinyl tape to
avoid the entry of air.
7. Remove blower unit. Refer to ATC-103
.
8. Remove mounting screws, and then remove air mix door motor (passenger side), mode door motor and evaporator cover.
9. Remove mounting bolt, and then remove low-pressure pipe 2 and high-pressure pipe 3.
CAUTION:
Cap or wrap the joint of expan sion valve with suitable mate-
rial such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure pipe 1, 2 and high-p ressure pipe 2, 3 with new ones, and then apply
compressor oil to it when installing it.
 Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
 Insert piping securely until a click is heard.
 After piping connection is comp leted, pull male-side piping by hand to make sure that connection
does not come loose.
 When recharging refrigerant, check for leaks.
Removal and Installation of Liquid TankINFOID:0000000001328226
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove front grille. Refer to EI-22
.
3. Clean liquid tank and its surrounding area, and remove dust and rust from liquid tank. CAUTION:
RJIA2037E
RJIA0940E
RJIA2038E
Low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts
: 5.5 N·m (0.56 kg-m, 49 in-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

REFRIGERANT LINESATC-135
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Be sure to clean carefully.
4. Remove liquid tank and power steering oil cooler mounting bolts.
5. Lift liquid tank bracket upward. Remove liquid tank bracket from protruding part of condenser.
6. Slide liquid tank upward, and then remove liquid tank.
INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:
 Make sure liquid tank bracket is securely installed at protru- sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)
 Replace O-rings of condenser pipe with new ones, and then
apply compressor oil to it when installing it.
 When recharging refrigerant, check for leaks.
Removal and Installation of CondenserINFOID:0000000001328227
REMOVAL
1. Use a refrigerant collecting equipment (f or HFC-134a) to discharge the refrigerant.
2. Remove cooling fan. Refer to CO-48
(VK45DE).
3. Remove radiator cooling fan assembly. Refer to CO-13
(VQ35DE).
4. Remove radiator shroud. Refer to CO-40
(VK45DE).
SJIA1644E
RJIA0672E
RJIA0673E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-136
< SERVICE INFORMATION >
REFRIGERANT LINES
5. Remove washer tank mounting bolt.
6. Remove high-pressure flexible hose bracket mounting bolt.
7. Disconnect high-pressure flexible hose and high-pressure pipe1 from condenser.
a. Set a disconnector [condenser outlet (SST: 9253089908), con- denser inlet (SST: 9253089912)] on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it. CAUTION:
Cap or wrap the joint of co ndenser, high-pressure flexible
hose and high-pressure pipe 1 with suitable material such
as vinyl tape to avoid the entry of air.
8. Remove condenser mounting bolts.
9. Remove radiator upper mount, move radiator and condenser to the engine side.
10. Remove condenser. CAUTION:
Be careful not to damage the core su rface of the condenser and the radiator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of high-pressure flexible hose and high-pressure pipe 1 with new ones, and then
apply compressor oil to it when installing it.
 Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
 Insert piping securely until a click is heard.
PBIC1534E
RJIA2065E
RJIA2066E
SJIA1570E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

REFRIGERANT LINESATC-137
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
 After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose.
 When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorINFOID:0000000001328228
REMOVAL
1. Remove condenser. Refer to ATC-135, "Removal and Installation of Condenser".
2. Remove refrigerant pressure sensor from condenser. CAUTION:
When working, be careful no t to damage the condenser.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to O-ring of refrig erant pressure sensor when installing it.
Removal and Installation of EvaporatorINFOID:0000000001328229
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-133, "Removal and Installation of
Low-Pressure Pipe 2 and High-pressure Pipe 3".
CAUTION:
Cap or wrap the joint of evaporator, low-pressure pipe 2 and high-pressure pipe 3 with suitable
material such as vinyl tape to avoid the entry of air.
2. Slide evaporator, and then remove it from heater & cooling unit assembly.
3. Remove intake sensor from evaporator, and then remove evap- orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure pipe 2 and high- pressure pipe 3 with new ones, and then apply
compressor oil to it when installing it.
 Female-side piping c onnection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
 Insert piping securely until a click is heard.
 After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose. High-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2076E
RJIA0928E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-140
< SERVICE INFORMATION >
REFRIGERANT LINES
2. When testing, circle each fitting completely with probe.
3. Move probe along component approximately 25 to 50 mm (1 to2 in)/sec.
CHECKING PROCEDURE
To prevent inaccurate or false readings, make sure t here is no refrigerant vapor, shop chemicals, or cigarette
smoke in the vicinity of the vehicle. Perform the leak test in calm area (low air/wind movement) so that the
leaking refrigerant is not dispersed.
1. Stop the engine.
2. Connect a suitable A/C manifold gauge set (SST: J-39183) to the A/C service valves.
3. Check if the A/C refrigerant pressu re is at least 345 kPa (3.52 kg/cm
2, 50 psi) above 16°C (61 °F). If less
than specification, recover/evacuate and recharge t he system with the specified amount of refrigerant.
NOTE:
At temperatures below 16 °C (61 °F), leaks may not be detected since the system may not reach 345 kPa
(3.52 kg/cm
2, 50 psi).
4. Perform the leak test from the high-pressure side (compressor discharge a to evaporator inlet h) to the
low-pressure side [evaporator drain hose i to shaft seal o (VK45DE) or n (VQ35DE)]. Refer to ATC-121,
"Component". Perform a leak check for the following areas carefully. Clean the component to be checked
and move the leak detected probe comp letely around the connection/component.
Compressor
Check the fitting of high- and low-pressure flexible hoses, relief valve and shaft seal.
Condenser
Check the fitting of high-pressure flexible hose and pipe, refrigerant pressure sensor.
Liquid tank
Check the fitting of refrigerant connection.
Service valves
Check all around the service valves. Ensure service va lve caps are secured on the service valves (to pre-
vent leaks).
NOTE:
After removing A/C manifold gauge set from service va lves, wipe any residue from valves to prevent any
false readings by leak detector.
Cooling unit (Evaporator)
With engine OFF, turn blower fan on “High” for at leas t 15 seconds to dissipate any refrigerant trace in the
cooling unit. Wait a minimum of 10 minutes accumulation time (refer to the manufacturer’s recommended
procedure for actual wait time) before inserti ng the leak detector probe into the drain hose.
Keep the probe inserted for at least 10 seconds. Use c aution not to contaminate the probe tip with water
or dirt that may be in the drain hose.
5. If a leak detector detects a leak, verify at least once by blowing compressed air into area of suspected
leak, then repeat check as outlined above.
SHA706E
SHA708EA
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INFINITI MOBILE ENTERTAINMENT SYSTEMAV-157
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
AV
N
O P
3. Remove screws (4) with power tool.
4. Pull DVD display unit to downside, and remove rear display unit from mounting plate.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Put metal clip hook in mounting plate, and press it securely.
SKIA5814E
SKIA5815E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System Reference
Oil pressure warning lamp DI-34
System Input Output
Remote control entry system Key fob  All-door locking actuator
 Fuel lid Lock actuator
 Turn signal lamp (LH, RH)
 Combination meter
Intelligent Key system Intelligent Key unit  All-door locking actuator
 Fuel lid Lock actuator
 Turn signal lamp (LH, RH)
 Combination meter
Power door lock system  Power window main switch
(door lock and unlock switch)
 Power window sub switch (passenger side) (door lock and unlock switch) All-door locking actuator
Power supply (IGN) to power window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seat Battery power supplyPower window, sunroof system and
power seat
Panic alarm  Key switch
 Key fobIPDM E/R
Theft warning system  All-door switch
 Hood switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Power window sub switch (passenger side) (door lock and unlock switch)  IPDM E/R
 Security indicator lamp
Auto light system  Optical sensor
 Combination switch
 Ignition switchIPDM E/R
Exterior lamp battery saver control  Ignition switch
 Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system  Combination meter
ECM
 Combination switch
 Ignition switchIPDM E/R
Parking, license plate, side marker and tail
lamps Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp  Combination switch
 Ignition switch Turn signal lamp
 Combination meter
Hazard lamp Hazard switch  Turn signal lamp
 Combination meter
Room lamp timer  Key switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Front door switch driver side
 All-door switch Interior room lamp
Key warning chime  Key switch
 Front door switch driver sideCombination meter
(warning buzzer)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCS-12
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
ITEMS OF EACH PART
BCM can perform the following functions for each system.
NOTE:
CONSULT-III displays systems equipped in the vehicle.
×:Applicable
NOTE:
 *1: Vehicle with remote keyless entry system display this item.
 *2: Vehicle with Intelligent Key system display this item.
 *3: This item is displayed, but does not function.
WORK SUPPORT
Display Item List
BCM Diagnostic test item Check item, diagnostic test mode Content
Inspection by part WORK SUPPORT Changes setting of each function.
SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
DATA MONITOR Displays the input data of BCM in real time.
CAN DIAG SUPPORT MNTR
The transmit/receive diagnosis result of CAN communication can be
read.
ACTIVE TEST Gives a drive signal to a load to check the operation.
ECU PART NUMBER ECM part number can be read.
CONFIGURATION (Not be used)
System and item CONSULT-III display Diagnostic test mode (Inspection by part)
WORK SUPPORT DATA MONITOR ACTIVE TEST
BCM BCM ×
Power door lock system DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Room lamp timer INT LAMP ×××
Remote keyless entry system*
1MULTI REMOTE ENT ×××
Headlamp HEAD LAMP ×××
Wiper WIPER ×××
Turn signal lamp
Hazard lamp FLASHER
××
Blower fan switch signal
A/C switch signal AIR CONDITONER
×
Intelligent Key system*
2INTELLIGENT KEY ×
Combination switch COMB SW ×
NVIS IMMU ××
Room lamp battery saver BATTERY SAVER ×× ×
Trunk lid TRUNK*
3××
Vehicle security system THEFT ALM ×××
Retained power control RETAINED PWR ×××
Oil pressure swit ch SIGNAL BUFFER ××
Low tire pressure warning system AIR PRESSURE MONITOR ×××
Panic system PANIC ALARM ×
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C