Page 2385 of 3924
ASCD INDICATOREC-1145
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Wiring DiagramINFOID:0000000001327046
Diagnosis ProcedureINFOID:0000000001327047
1.CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
TBWM1366E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2386 of 3924
EC-1146
< SERVICE INFORMATION >[VK45DE]
ASCD INDICATOR
OK or NG
OK >>
INSPECTION END
NG >> GO TO 2.
2.CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
OK or NG
OK >> GO TO 3.
NG >> Perform trouble diagnosis for DTC U1000, U1001. Refer to EC-724
.
3.CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
OK or NG
OK >> GO TO 4.
NG >> Go to DI-30, "
DTC [B2202] Meter Communication Circuit".
4.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
ASCD INDICATOR CONDITION SPECIFICATION
CRUISE LAMP Ignition switch: ON MAIN switch: Pressed at the 1st
time
→ at the 2nd time ON
→ OFF
SET LAMP MAIN switch: ON
When vehicle speed is be-
tween 40 km/h (25 MPH) and
144 km/h (89 MPH) ASCD: Operating ON
ASCD: Not operating OFF
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2387 of 3924
![INFINITI FX35 2008 Service Manual
ELECTRICAL LOAD SIGNALEC-1147
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000001327048
The electrical load signal (Headlamp switch si INFINITI FX35 2008 Service Manual
ELECTRICAL LOAD SIGNALEC-1147
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000001327048
The electrical load signal (Headlamp switch si](/manual-img/42/57017/w960_57017-2386.png)
ELECTRICAL LOAD SIGNALEC-1147
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000001327048
The electrical load signal (Headlamp switch signal, r
ear window defogger switch signal, etc.) is transferred
through the CAN communication line from BCM to ECM via IPDM E/R.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000001327049
Specification data are reference values.
Diagnosis ProcedureINFOID:0000000001327050
1.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Connect CONSULT-III and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
2.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3.CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select “HEATER FAN SW” and check indication under the following conditions.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
4.CHECK REAR WINDOW DEFOGGER SYSTEM
MONITOR ITEM CONDITION SPECIFICATION
LOAD SIGNAL Ignition switch: ON Rear window defogger switch: ON
and/or lighting switch: 2nd position
ON
Rear window defogger switch and lighting
switch: OFF OFF
HEATER FAN SW Engine: After warming up, idle the
engine Heater fan switch: ON ON
Heater fan switch: OFF OFF
Condition Indication
Rear window defogger switch: ON ON
Rear window defogger switch: OFF OFF
Condition Indication
Lighting switch: ON at 2nd position ON
Lighting switch: OFF OFF
Condition Indication
Heater fan control switch: ON ON
Heater fan control switch: OFF OFF
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2388 of 3924
EC-1148
< SERVICE INFORMATION >[VK45DE]
ELECTRICAL LOAD SIGNAL
Refer to
GW-60.
>> INSPECTION END
5.CHECK HEADLAMP SYSTEM
Refer to LT- 5
.
>> INSPECTION END
6.CHECK HEATER FAN CONTROL SYSTEM
Refer to AT C - 3 2
.
>> INSPECTION END
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2389 of 3924
![INFINITI FX35 2008 Service Manual
FUEL INJECTOREC-1149
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
FUEL INJECTOR
Component DescriptionINFOID:0000000001327051
The fuel injector is a small, precise solenoid valve. INFINITI FX35 2008 Service Manual
FUEL INJECTOREC-1149
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
FUEL INJECTOR
Component DescriptionINFOID:0000000001327051
The fuel injector is a small, precise solenoid valve.](/manual-img/42/57017/w960_57017-2388.png)
FUEL INJECTOREC-1149
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
FUEL INJECTOR
Component DescriptionINFOID:0000000001327051
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector ci
rcuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000001327052
Specification data are reference values.
SEF375Z
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL See EC-709
.
INJ PULSE-B1
INJ PULSE-B2 Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2390 of 3924
EC-1150
< SERVICE INFORMATION >[VK45DE]
FUEL INJECTOR
Wiring Diagram
INFOID:0000000001327053
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
TBWM1362E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2391 of 3924
![INFINITI FX35 2008 Service Manual
FUEL INJECTOREC-1151
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM INFINITI FX35 2008 Service Manual
FUEL INJECTOREC-1151
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM](/manual-img/42/57017/w960_57017-2390.png)
FUEL INJECTOREC-1151
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis ProcedureINFOID:0000000001327054
1.INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Ye s o r N o
Yes (With CONSULT-III)>>GO TO 2.
Yes (Without CONSULT-III)>>GO TO 3.
No >> GO TO 3.
2.CHECK OVERALL FUNCTION
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “A CTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3.CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect harness connector F21, F201 (Bank 1) and F41, F221 (Bank 2).
TER-
MI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
21
22
23
40
41
42
44
63 W
R
P
PU
BR
B
OR
G Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 7
Fuel injector No. 8 [Engine is running]
Warm-up condition
Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14V)
PBIB0042E
PBIB0043E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 2392 of 3924
![INFINITI FX35 2008 Service Manual
EC-1152
< SERVICE INFORMATION >[VK45DE]
FUEL INJECTOR
3. Turn ignition switch ON.
4. Check voltage between the following;
harness connector F21 terminal 5 and ground,
harness connector F41 terminal 5 INFINITI FX35 2008 Service Manual
EC-1152
< SERVICE INFORMATION >[VK45DE]
FUEL INJECTOR
3. Turn ignition switch ON.
4. Check voltage between the following;
harness connector F21 terminal 5 and ground,
harness connector F41 terminal 5](/manual-img/42/57017/w960_57017-2391.png)
EC-1152
< SERVICE INFORMATION >[VK45DE]
FUEL INJECTOR
3. Turn ignition switch ON.
4. Check voltage between the following;
harness connector F21 terminal 5 and ground,
harness connector F41 terminal 5 and ground.
5. Turn ignition switch OFF.
6. Disconnect ECM harness connector.
7. Check harness continuity between the following terminals.
8. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M82, F102
Harness connectors F21, F201
Harness connectors F41, F221
Fuse block (J/B) connector M1
15A fuse
Harness for open or short between harness connector F21 and fuse
Harness for open or short between harness connector F41 and fuse
Harness for open or short between harness connector F21 and ECM
Harness for open or short between harness connector F41 and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK FUNCTION OF FUEL INJECTOR-II
: Vehicle front 1. Harness connectors F41, F221 2. Harness connectors F21, F201
Voltage: Battery voltage
Cylinder Harness connector terminal ECM terminal1 F21 terminal 3 23
3 F21 terminal 2 22
5 F21 terminal 1 21
7 F21 terminal 6 44
2 F41 terminal 3 42
4 F41 terminal 2 41
6 F41 terminal 1 40
8 F41 terminal 6 63
Continuity should exist.
PBIB3248E
PBIB0180E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C