air condition INFINITI QX56 2011 Factory Service Manual

DIAGNOSIS SYSTEM (ECM)EC-67
< SYSTEM DESCRIPTION > [VK56VD]
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OLOAD SIGNAL ON/OFF
 Indicates [ON/OFF] condition from the electrical
load signal.
ON: Rear window defogger switch is ON and/or
lighting switch is in 2nd position.
OFF: Both rear window defogger switch and light-
ing switch are OFF.
IGNITION SW ON/OFF  Indicates [ON/OFF] condition from ignition switch
signal.
HEATER FAN SW ON/OFF  Indicates [ON/OFF] condition from the blower fan
ON signal.
BRAKE SW ON/OFF  Indicates [ON/OFF] condition from the stop lamp
switch signal.
IGN TIMING BTDC  Indicates the ignition timing computed by ECM ac-
cording to the input signals.  When the engine is stopped,
a certain value is indicated.
COMBUSTION —  These items are displayed but are not applicable to
this model.
CAL/LD VALUE %  “Calculated load value” indicates the value of the
current air flow divided by peak air flow.
MASS AIRFLOW g/s  Indicates the mass air flow computed by ECM ac-
cording to the signal voltage of the mass air flow
sensor.
PURG VOL C/V %  Indicates the EVAP canister purge volume control
solenoid valve control value computed by the ECM
according to the input signals.
 The opening becomes larger as the value increas-
es.
INT/V SOL (B1)
% The control value of the intake valve timing control
solenoid valve (determined by ECM according to
the input signals) is indicated.
 The advance angle becomes larger as the value increases.
INT/V SOL (B2)
AIR COND RLY ON/OFF
 The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is in-
dicated.
VENT CONT/V ON/OFF  The control condition of the EVAP canister vent
control valve (determined by ECM according to the
input signals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY ON/OFF  Indicates the throttle co
ntrol motor relay control
condition determined by the ECM according to the
input signals.
A/F S1 HTR (B1)
% Air fuel ratio (A/F) sensor 1 heater control value
computed by ECM according to the input signals.
 The current flow to the heater becomes larger as the value increases.
A/F S1 HTR (B2)
HO2S2 HTR (B1)
ON/OFF Indicates [ON/OFF] condition of heated oxygen
sensor 2 heater determined by ECM according to
the input signals.
HO2S2 HTR (B2)
ALT DUTY SIG ON/OFF  The control condition of the power generation volt-
age variable control (determined by ECM accord-
ing to the input signals) is indicated.
ON: Power generation voltage variable control is
active.
OFF: Power generation voltage variable control is
inactive.
I/P PULLY SPD rpm  Indicates the engine speed computed from the in-
put speed sensor signal.
Monitored item Unit Description Remarks
Revision: 2010 May2011 QX56

EC-68
< SYSTEM DESCRIPTION >[VK56VD]
DIAGNOSIS SYSTEM (ECM)
VEHICLE SPEED km/h or mph The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
IDL A/V LEARN YET/CMPLT  Displays the condition of Idle Air Volume Learning
YET: Idle air volume learning has not been per-
formed yet.
CMPLT: Idle air volume learning has already been
performed successfully.
TRVL AFTER MIL km or mile  Distance traveled while MIL is activated.
SNOW MODE SW ON/OFF  Indicates [ON/OFF] condition from the snow mode
switch signal.
ENG OIL TEMP °C or °F  The engine oil temperature (determined by the sig-
nal voltage of the engine oil temperature sensor) is
displayed.
MAIN SW ON/OFF  Indicates [ON/OFF] condition from MAIN switch
signal.
CANCEL SW ON/OFF  Indicates [ON/OFF] condition from CANCEL
switch signal.
RESUME/ACC SW ON/OFF  Indicates [ON/OFF] condition from RESUME/AC-
CELERATE switch signal.
SET SW ON/OFF  Indicates [ON/OFF] condition from SET/COAST
switch signal.
BRAKE SW1 ON/OFF  Indicates [ON/OFF] condition from ASCD brake
switch signal.
BRAKE SW2 ON/OFF  Indicates [ON/OFF] condition of stop lamp switch
signal.
DIST SW ON/OFF  Indicates [ON/OFF] condition from DISTANCE
switch signal.
CRUISE LAMP ON/OFF  Indicates [ON/OFF] condition of CRUISE indicator
determined by the ECM according to the input sig-
nals.
AC EVA TEMP °C or °F  Indicates A/C evaporator temperature sent from A/
C auto amp.
AC EVA TARGET °C or °F  Indicates target A/C evaporator temperature sent
from A/C auto amp.
FAN DUTY %  Indicates a command value for cooling fan. The
value is calculated by ECM based on input signals.
ALT DUTY %  Indicates the duty ratio of the power generation
command value. The ratio is calculated by ECM
based on the battery current sensor signal.
BAT CUR SEN mV  The signal voltage of battery current sensor is dis-
played.
A/F ADJ-B1
— Indicates the correction of a factor stored in ECM.
The factor is calculated from the difference be-
tween the target air-fuel ratio stored in ECM and
the air-fuel ratio calculated from A/F sensor 1 sig-
nal.
A/F ADJ-B2
P/N POSI SW ON/OFF
 Indicates [ON/OFF] condition from the park/neutral
position (PNP) signal.
INT/A TEMP SE °C or °F  The intake air temperature (determined by the sig-
nal voltage of the intake air temperature sensor) is
indicated.
AC PRESS SEN V  The signal voltage from the refrigerant pressure
sensor is displayed.
FUEL PRES SEN MPa  Indicates the fuel rail pressure computed by ECM
according to the input signals
Monitored item Unit Description Remarks
Revision: 2010 May2011 QX56

EC-70
< SYSTEM DESCRIPTION >[VK56VD]
DIAGNOSIS SYSTEM (ECM)
*: The item is indicated, but not used.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
ECM TEMP 1
°C or °F  Displays a temperature calculated from a signal of
ECM temperature sensor 1.
ECM TEMP 2 °C or °F  Displays a temperature calculated from a signal of
ECM temperature sensor 2.
FUEL PUMP DUTY %  The control condition of the fuel pump control mod-
ule (FPCM) (determined by ECM according to the
input signals) is indicated.
Monitored item Unit Description Remarks
TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY)
VENT CON-
TROL/V  Ignition switch: ON (Engine
stopped)
 Turn solenoid valve ON and OFF with the CONSULT-III and listen
to operating sound. Solenoid valve makes an operating
sound.
 Harness and connectors
 Solenoid valve
ENG COOLANT
TEMP  Engine: Return to the original
non-standard condition
 Change the engine coolant tem- perature using CONSULT-III. If malfunctioning symptom disap-
pears, see CHECK ITEM.  Harness and connectors
 Engine coolant temperature sen-
sor
 Fuel injector
FUEL INJEC-
TION  Engine: Return to the original
non-standard condition
 Change the amount of fuel injec- tion using CONSULT-III. If malfunctioning symptom disap-
pears, see CHECK ITEM.
 Harness and connectors
 Fuel injector
 Air fuel ratio (A/F) sensor 1
FUEL/T TEMP
SEN  Change the fuel tank temperature using CONSULT-III.
PURG VOL
CONT/V  Engine: After warming up, run en-
gine at 1,500 rpm.
 Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-III. Engine speed changes according to
the opening percent.
 Harness and connectors
 Solenoid valve
FAN DUTY CON-
TROL* Ignition switch: ON
 Change duty ratio using CON-
SULT-III. Cooling fan speed changes.  Harness and connectors
 Cooling fan motor
 Cooling fan relay
 Cooling fan control module
 IPDM E/R
ALTERNATOR
DUTY Engine: Idle
 Change duty ratio using CON-
SULT-III. Battery voltage changes.  Harness and connectors
 IPDM E/R
Alternator
POWER BAL-
ANCE  Engine: After warming up, idle the
engine.
 A/C switch OFF
 Selector lever: P or N
 Cut off each injector signal one at a time using CONSULT-III. Engine runs rough or stops.
 Harness and connectors
 Compression
 Fuel injector
 Power transistor
Spark plug
 Ignition coil
IGNITION TIM-
ING  Engine: Return to the original
non-standard condition
 Timing light: Set
 Retard the ignition timing using
CONSULT-III. If malfunctioning symptom disap-
pears, see CHECK ITEM.
 Perform Idle Air Volume Learning.
Revision: 2010 May2011 QX56

ECM
EC-73
< ECU DIAGNOSIS INFORMATION > [VK56VD]
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TP SEN 1-B1
 Ignition switch: ON
(Engine stopped)
 Selector lever: D position Accelerator pedal: Fully released More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
TP SEN 2-B1*
1 Ignition switch: ON (Engine stopped)
 Selector lever: D position Accelerator pedal: Fully released More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
FUEL T/TMP SE  Ignition switch: ON Indicates fuel tank tempera-
ture
EVAP SYS PRES  Ignition switch: ON Approx. 1.8 - 4.8 V
FUEL LEVEL SE  Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL  Ignition switch: ON → START → ON OFF → ON → OFF
CLSD THL POS  Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released ON
Accelerator pedal: Slightly depressed OFF
AIR COND SIG  Engine: After warming up, idle
the engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)
ON
PW/ST SIGNAL  Engine: After warming up, idle
the engine Steering wheel: Not being turned OFF
Steering wheel: Being turned ON
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
IGNITION SW  Ignition switch: ON → OFF → ON ON → OFF → ON
HEATER FAN SW  Engine: After warming up, idle
the engine Heater fan switch: ON ON
Heater fan switch: OFF OFF
BRAKE SW  Ignition switch: ON Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
IGN TIMING  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle 1 - 4
°BTDC
2,000 rpm 25 - 45 °BTDC
COMBUSTION — These items are displayed
but are not applicable to this
model.
CAL/LD VALUE  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle 5 - 35%
2,500 rpm 5 - 35%
MASS AIRFLOW  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle 2.0 - 6.0 g/s
2,500 rpm 7.0 - 20.0 g/s
PURG VOL C/V  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.)
0%
2,000 rpm 5%
INT/V SOL (B1)  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle 0 - 2%
2,000 rpm Approx. 0 - 50%
Monitor Item Condition Values/Status
Revision: 2010 May2011 QX56

EC-74
< ECU DIAGNOSIS INFORMATION >[VK56VD]
ECM
INT/V SOL (B2) Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle 0 - 2%
2,000 rpm Approx. 0 - 50%
AIR COND RLY  Engine: After warming up, idle
the engine A/C switch: OFF OFF
A/C switch: ON
(Compressor operates)
ON
VENT CONT/V  Ignition switch: ON OFF
THRTL RELAY  Ignition switch: ON ON
A/F S1 HTR (B1)  Engine: After warming up, idle the engine
(More than 140 seconds after starting engine) 4 - 100%
A/F S1 HTR (B2)  Engine: After warming up, idle the engine
(More than 140 seconds after starting engine) 4 - 100%
HO2S2 HTR (B1)  Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load ON
 Engine speed: Above 3,600 rpm OFF
HO2S2 HTR (B2)  Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load ON
 Engine speed: Above 3,600 rpm OFF
ALT DUTY SIG  Power generation voltage variable control: Operating ON
 Power generation voltage variable control: Not operating OFF
I/P PULLY SPD  Vehicle speed: More than 20 km/h (12 MPH) Almost the same speed as
the tachometer indication
VEHICLE SPEED  Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication. Almost the same speed as
the speedometer indication
IDL A/V LEARN  Engine: Running Idle air volume learning has not been per-
formed yet.
YET
Idle air volume learning has already been
performed successfully. CMPLT
TRVL AFTER MIL  Ignition switch: ON Vehicle has traveled after MIL has illumi-
nated.0 - 65,535 km
(0 - 40,7
23 miles)
SNOW MODE SW  Ignition switch: ON Snow mode switch: ON ON
Snow mode switch: OFF OFF
ENG OIL TEMP  Engine: After warming up More than 70 °C (158 °F)
MAIN SW  Ignition switch: ON MAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW  Ignition switch: ON CANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW  Ignition switch: ON RESUME/ACCELERATE switch:
Pressed
ON
RESUME/ACCELERATE switch: Re-
leased OFF
SET SW  Ignition switch: ON SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1
(ASCD/ICC brake
switch)  Ignition switch: ON
Brake pedal: Fully released ON
Brake pedal: Slightly depressed OFF
Monitor Item Condition Values/Status
Revision: 2010 May2011 QX56

ECM
EC-75
< ECU DIAGNOSIS INFORMATION > [VK56VD]
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BRAKE SW2
(Stop lamp switch)
 Ignition switch: ON Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
DIST SW  Ignition switch: ON DISTANCE switch: Pressed ON
DISTANCE switch: Released OFF
CRUISE LAMP  Ignition switch: ON MAIN switch: Pressed at the 1st time
→
at the 2nd time ON
→ OFF
AC EVA TEMP  Engine: Running Indicates A/C evaporator
temperature sent from“uni-
fied meter and A/C amp.”.
AC EVA TARGET  Engine: Running Indicates target A/C evapo-
rator temperature sentfrom
“unified meter and A/C
amp.”.
FAN DUTY  Engine: Running 0 - 100%
ALT DUTY  Engine: Idle 0 - 80%
BAT CUR SEN  Engine speed: Idle
 Battery: Fully charged*
2
 Selector lever: P or N position
 A/C switch: OFF
No load Approx. 2,600 - 3,500 mV
A/F ADJ-B1  Engine: Running −0.330 - 0.330
A/F ADJ-B2  Engine: Running −0.330 - 0.330
P/N POSI SW  Ignition switch: ON Selector lever: P or N ON
Selector lever: Except above position OFF
INT/A TEMP SE  Ignition switch: ON Indicates intake air temper-
ature
AC PRESS SEN  Engine: Idle
 Both A/C switch and blower fan switch: ON (Compressor operates) 1.0 - 4.0 V
FUEL PRES SEN  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 2.74 Mpa
2,000 rpm Approx. 3.0 Mpa
FUEL INJ B1  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 1.4 msec
2,000 rpm Approx. 1.0 msec
FUEL INJ B2  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 1.4 msec
2,000 rpm Approx. 1.0 msec
INT/V TIM (B1)  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
−5 - 5 °CA
2,000 rpm Approx. 0 - 30 °CA
INT/V TIM (B2)  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
−5 - 5 °CA
2,000 rpm Approx. 0 - 30 °CA
MAP SENSOR  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 1.0 V
2,000 rpm Approx. 1.35 V
EVAP LEAK DIAG  Ignition switch: ON Indicates the condition of
EVAP leak diagnosis.
Monitor Item Condition Values/Status
Revision: 2010 May2011 QX56

EC-76
< ECU DIAGNOSIS INFORMATION >[VK56VD]
ECM
EVAP DIAG READY  Ignition switch: ON Indicates the ready condi-
tion of EVAP leak diagnosis.
VVEL LEARN  Ignition switch: OFF
→ ON
(After warming up) VVEL learning has no
t been performed
yet. YET
VVEL learning has already been per-
formed successfully. DONE
VVEL SEN LEARN-B1  VVEL learning has already been performed successfully Approx. 0.30 - 0.80 V
VVEL SEN LEARN-B2  VVEL learning has already been performed successfully Approx. 0.30 - 0.80 V
VVEL POSITION SEN-
B1  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 0.25 - 1.50 V
When revving engine up to 2,000 rpm
quickly
Approx. 0.25 - 4.75 V
VVEL POSITION SEN-
B2  Engine: After warming up
 Selector lever: P or N position
 Air conditioner switch: OFF
No load Idle Approx. 0.25 - 1.50 V
When revving engine up to 2,000 rpm
quickly
Approx. 0.25 - 4.75 V
VVEL TIM-B1  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 0 - 23 deg
When revving engine up to 2,000 rpm
quickly
Approx. 0 - 90 deg
VVEL TIM-B2  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 0 - 23 deg
When revving engine up to 2,000 rpm
quickly
Approx. 0 - 90 deg
FPCM  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load  Engine: Cranking HI
 Revving engine from idle to 4,000 rpm
quickly MID
 Engine: Idle
 Engine coolant temperature: More than 10 °C (50 °F) LOW
BAT TEMP SEN  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
Indicates the temperature
around the battery.
COOLING FAN SPD  Engine speed: Idle
 Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Water temp: Less than 98
°C Approx. 100 – 200 rpm
Water temp: More than 98 °C Approx. 600 – 700 rpm
THRTL STK CNT B1 NOTE:
The item is indicated, but not used. —
HO2 S2 DIAG2(B1) NOTE:
The item is indicated, but not used.
—
HO2 S2 DIAG2(B2) NOTE:
The item is indicated, but not used. —
FUEL INJ TIMG Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 16 deg
2,000 rpm Approx.
−170 deg
H/P FUEL PUMP DEG  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 211.0 deg
2,000 rpm Approx. 206.0 deg
Monitor Item Condition Values/Status
Revision: 2010 May2011 QX56

ECM
EC-77
< ECU DIAGNOSIS INFORMATION > [VK56VD]
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*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, the
y differ
from ECM terminals voltage signal.
*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to PG-159, "
How to Handle Battery".
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
 Specification data are reference values and are measured between each terminals.
 Pulse signal is measured by CONSULT-III.
FUEL PRES SEN V Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 1150 mV
2,000 rpm Approx. 1200 mV
L/FUEL PRES SEN  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 0.45 MPa
2,000 rpm Approx. 0.45 MPa
L/FUEL PRES SEN V  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle Approx. 3250 mV
3,000 rpm Approx. 3100 mV
ECM TEMP 1  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
Indicates the temperature of
ECM internal circuit 1.
ECM TEMP 2  Engine: After warming up
 Selector lever: P or N position
 A/C switch: OFF
No load Idle
Indicates the temperature of
ECM internal circuit 2.
FUEL PUMP DUTY  Engine: After warming up
 Shift lever: P or N
 Air conditioner switch: OFF
No load Engine speed: Idle 30 - 40%
Monitor Item Condition Values/Status
JPBIA3371ZZ
Revision: 2010 May2011 QX56

EC-80
< ECU DIAGNOSIS INFORMATION >[VK56VD]
ECM
12
(Y)
13
(L/B) 14
(BR/ Y)
15
(LG/ R) 175
(B) Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 3
Ignition signal No. 4
Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle 0 - 0.2 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm 0.1 - 0.4 V
17
(P/L) 18
(Y/R) 19
(G/Y)
20
(O) 175
(B) Ignition signal No. 5
Ignition signal No. 6
Ignition signal No. 7
Ignition signal No. 8
Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle 0 - 0.2 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm 0.1 - 0.4 V
21
(G/O) 25
(LG) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake
air temperature.
22
(BR/ W) 25
(LG) Mass air flow sensor Input [Engine is running]
 Warm-up condition
 Idle speed
0.9 - 1.1 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,500 rpm 1.4 - 1.9 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
JPBIA3355ZZ
JPBIA3356ZZ
JPBIA3355ZZ
JPBIA3356ZZ
Revision: 2010 May2011 QX56

ECM
EC-81
< ECU DIAGNOSIS INFORMATION > [VK56VD]
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(V) 45
(L/O) Low fuel pressure sensor Input [Engine is running]
 Warm-up condition
 Idle speed
2.4 - 3.6 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm 2.4 - 3.6 V
25
(LG) —Sensor ground
[Mass air flow sensor/ Intake air
temperature sensor] —— —
27
(P) 45
(L/O) Sensor power supply
(Power steering pressure sen-
sor/ Low fuel pressure sensor/
Electrically-controlled cooling
fan coupling)
— [Ignition switch: ON] 5 V
28
(SB) 40
(W/L) Sensor power supply
(Fuel rail pressure sensor/En-
gine oil pressure sensor)
— [Ignition switch: ON] 5 V
29
(W) 35
(—) Knock sensor (bank 1) Input [Engine is running]
 Idle speed
2.0 V*
1
31
(V/W) 40
(W/L) Fuel rail pressure sensor Input [Engine is running]
 Warm-up condition
 Idle speed
0.98 - 1.2 V
[Engine is running]
 Warm-up condition
 Revving engine from idle to 4,000 rpm quickly 1.1 - 2.9 V
32
(R) 40
(W/L) Engine coolant temperature
sensor
Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
coolant temperature.
33
(W) 35
(—) Knock sensor (bank 2) Input [Engine is running]
 Idle speed
2.0 V*
1
35
(—) —Sensor ground
(Knock sensor)
—— —
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
JPBIA3357ZZ
JPBIA3358ZZ
Revision: 2010 May2011 QX56