Qashqai J11. Engine control system (MR20DD) — part 5
ECM-66
< SYSTEM DESCRIPTION >
[MR20DD]
DIAGNOSIS SYSTEM (ECM)
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to
How to Read DTC and 1st Trip DTC
DTCs and 1st trip DTCs related to the malfunction are displayed in “Self-diag results” mode with CONSULT.
“TIME” indicates the number of driving the vehicle after the last detection of DTC.
• When ECM has detected a current DTC, “0” is displayed for “TIME”.
• When ECM memorizes a 1st trip DTC, “1t” is displayed for “TIME”.
• If “TIME” is neither “0” nor “1t”, the DTC occurred in the past.
How to Erase DTC
NOTE:
If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 sec-
onds and then turn it ON (engine stopped) again.
1.
Select “ENGINE” with CONSULT.
2.
Select “SELF-DIAG RESULTS” mode.
3.
Touch “ERASE”. (DTC in ECM will be erased.)
Freeze Frame Data and 1st Trip Freeze Frame Data
*1: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
NOTE:
Freeze frame data item*
1
Description
DIAG TROUBLE CODE
[PXXXX]
The engine control component part/control system has a trouble code displayed as PXXXX. (Refer to
.)
CAL/LD VALUE %]
The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [
°
C]
The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 %]
• “Long-term fuel trim” at the moment a malfunction is detected is displayed.
• The long-term fuel trim indicates much more gradual feedback compensation to the base fuel sched-
ule than short-term fuel trim.
L-FUEL TRM-B2 %]
S-FUEL TRM-B1 %]
• “Short-term fuel trim” at the moment a malfunction is detected is displayed.
• The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule.
S-FUEL TRM-B2 %]
ENGINE SPEED [rpm]
The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED [km/h]
or [mph]
The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH·P/S [%]
The throttle valve opening angle at the moment a malfunction is detected is displayed.
INJ PULSE [msec]
The basic injection quantity at the moment a malfunction is detected is displayed.
INT/A TEMP SE [
°
C] or
[
°
F]
The intake air temperature at the moment a malfunction is detected is displayed.
FUEL SYS-B1
• “Fuel injection system status” at the moment a malfunction is detected is displayed.
• One of the following mode is displayed.
- MODE 2: Open loop due to detected system malfunction
- MODE 3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
- MODE 4: Closed loop - using oxygen sensor(s) as feedback for fuel control
- MODE 5: Open loop - has not yet satisfied condition to go to closed loop
FUEL SYS-B2
INT MANI PRES [kPa]
• Constant value is displayed.
• These items are displayed but are not applicable to this model.
COMBUST CONDITION
FUEL RAIL PRESSURE
[MPa]
The fuel rail pressure at the moment a malfunction is detected is displayed.
TARGET FUEL RAIL
PRESSURE [MPa]
The target fuel rail pressure at the moment a malfunction is detected is displayed.
BATTERY VOLTAGE [V]
The battery voltage at the moment a malfunction is detected is displayed.
FUEL LEVEL [%]
The fuel level at the moment a malfunction is detected is displayed.
DIAGNOSIS SYSTEM (ECM)
ECM-67
< SYSTEM DESCRIPTION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica-
ble to this vehicle, refer to CONSULT display items.
• For reference values of the following items, refer to
Monitored Item
Monitored item
Unit
Description
Remarks
ENG SPEED
rpm
Indicates the engine speed computed from the signal of
the crankshaft position sensor and camshaft position
sensor.
Accuracy becomes poor if engine
speed drops below the idle rpm.
MAS A/F SE-B1
V
The signal voltage of the mass air flow sensor is dis-
played.
• When the engine is stopped, a
certain value is indicated.
• When engine is running, normal
range is indicated in “SPEC”.
B/FUEL SCHDL
ms
“Base fuel schedule”indicates the fuel injection pulse
width programmed into ECM, prior to any learned on
board correction.
When engine is running, normal
range is indicated in “SPEC”.
A/F ALPHA-B1
%
The mean value of the air-fuel ratio feedback correction
factor per cycle is indicated.
• When the engine is stopped, a
certain value is indicated.
• This data also includes the data
for the air-fuel ratio learning con-
trol.
• When engine is running, normal
range is indicated in “SPEC”.
COOLAN TEMP/S
°
C
The engine coolant temperature (determined by the sig-
nal voltage of the engine coolant temperature sensor) is
displayed.
When the engine coolant tempera-
ture sensor is open or short-circuit-
ed, ECM enters fail-safe mode.The
engine coolant temperature deter-
mined by the ECM is displayed.
A/F SEN1 (B1)
V
The A/F signal voltage computed from the input signal
of the air fuel ratio (A/F) sensor 1 is displayed.
HO2S1 (B1)
V
The signal voltage of the heated oxygen sensor 2 is dis-
played.
VHCL SPEED SE
km/h
The vehicle speed computed from the vehicle speed
signal sent from combination meter is displayed.
BATTERY VOLT
V
The power supply voltage of ECM is displayed.
ACCEL SEN 1
V
The signal voltage of the accelerator pedal position sen-
sor 1 is displayed.
ACCEL SEN 2
V
The converted value of the accelerator pedal position
sensor signal voltage is displayed.
ACCEL SEN 2 signal is converted
by ECM internally. Thus, they dif-
fers from ECM terminal voltage sig-
nal.
TP SEN 1-B1
V
The signal voltage of the throttle position sensor 1 B1 is
displayed.
TP SEN 2-B1
V
The value converted from the signal voltage of the throt-
tle position sensor 2 B1 is displayed.
TP SEN 2-B1 signal is converted
by ECM internally. Thus, they dif-
fers from ECM terminal voltage sig-
nal.
START SIGNAL
ON/
OFF
Indicates start signal status [ON/OFF] computed by the
ECM according to the signals of engine speed and bat-
tery voltage.
After starting the engine, [OFF] is
displayed regardless of the starter
signal.
CLSD THL POS
ON/
OFF
Indicates idle position [ON/OFF] computed by ECM ac-
cording to the accelerator pedal position sensor signal.
AIR COND SIG
ON/
OFF
Indicates [ON/OFF] condition of the air conditioner
switch as determined by the air conditioner signal.
PW/ST SIGNAL
ON/
OFF
Indicates [ON/OFF] condition of the power steering sys-
tem (determined by the signal voltage of the power
steering pressure sensor signal).
ECM-68
< SYSTEM DESCRIPTION >
[MR20DD]
DIAGNOSIS SYSTEM (ECM)
LOAD SIGNAL
ON/
OFF
Indicates [ON/OFF] condition of the electrical load sig-
nal.
• ON...Rear window defogger switch is ON or lighting
switch is in 2nd position.
• OFF...Both rear window defogger switch and lighting
switch are OFF.
IGNITION SW
ON/
OFF
Indicates [ON/OFF] condition from ignition switch sig-
nal.
HEATER FAN SW
ON/
OFF
Indicates [ON/OFF] condition from the heater blower
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 accord-
ing to the input signals.
When the engine is stopped, a cer-
tain value is indicated.
COMBUSTION
NOTE:
These items are displayed but are not applicable to this
model.
CAL/LD VALUE
%
“Calculated load value” indicates the value of the cur-
rent air flow divided by peak air flow.
MASS AIRFLOW
g/s
Indicates the mass air flow computed by ECM accord-
ing to the mass air flow sensor signal.
PURG VOL C/V
%
• Indicates the control value of the EVAP canister
purge volume control solenoid valve computed by the
ECM according to the input signals.
• The opening becomes larger as the value increases.
INT/V TIM (B1)
°
CA
• Indicates [
°
CA] of intake camshaft advance angle.
EXH/V TIM B1
°
CA
• Indicates [
°
CA] of exhaust camshaft advance angle.
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 in-
creases.
VTC DTY EX B1
%
• The control value of the exhaust valve timing control
solenoid valve (determined by ECM according to the
input signals) is indicated.
• The advance angle becomes larger as the value in-
creases.
SWRL CONT S/V
*
ON/
OFF
• The control condition of the intake manifold runner
control valve (determined by ECM according to the
input signals) is indicated.
- On: Closed
- Off: Open
AIR COND RLY
ON/
OFF
The air conditioner relay control condition (determined
by ECM according to the input signals) is indicated.
FUEL PUMP RELAY
ON/
OFF
• Indicates the fuel pump relay control condition deter-
mined by ECM according to the input signals.
THRTL RELAY
ON/
OFF
Indicates the throttle control motor relay control condi-
tion determined by the ECM according to the input sig-
nals.
HO2S1 HTR (B1)
ON/
OFF
Indicates [ON/OFF] condition of heated oxygen sensor
2 heater determined by ECM according to the input sig-
nals.
I/P PULLY SPD
rpm
Indicates the engine speed computed from the input
shaft revolution signal.
VEHICLE SPEED
km/h
The vehicle speed computed from the vehicle speed
signal sent from TCM is displayed.
Monitored item
Unit
Description
Remarks
DIAGNOSIS SYSTEM (ECM)
ECM-69
< SYSTEM DESCRIPTION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
IDL A/V LEARN
YET/
DONE
Displays the condition of Idle Air Volume Learning.
• YET...Idle air volume learning has not been per-
formed yet.
• DONE...Idle air volume learning has already been
performed successfully.
TRVL AFTER MIL
km or
mile
Distance traveled while MIL is activated.
ENG OIL TEMP
°
C
°
F
The engine oil temperature (determined by the signal
voltage of the engine oil temperature sensor) is dis-
played.
A/F S1 HTR (B1)
%
• Indicates the duty ratio of the Air fuel ratio (A/F) sen-
sor 1 heater computed by ECM according to the input
signals.
• The current flow to the heater becomes larger as the
value increases.
VHCL SPEED SE
km/h or
mph
The vehicle speed computed from the vehicle speed
signal sent from unified meter and combination meter is
displayed.
SET VHCL SPD
km/h or
mph
The preset vehicle speed 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 sig-
nal.
RESUME/ACC SW
ON/
OFF
Indicates [ON/OFF] condition from RESUME/ACCEL-
ERATE switch signal.
SET SW
ON/
OFF
Indicates [ON/OFF] condition from SET/COAST switch
signal.
BRAKE SW1
ON/
OFF
Indicates [ON/OFF] condition from brake pedal position
switch signal.
BRAKE SW2
ON/
OFF
Indicates [ON/OFF] condition of stop lamp switch sig-
nal.
VHCL SPD CUT
NON/
CUT
Indicates the vehicle cruise condition.
• NON...Vehicle speed is maintained at the ASCD set
speed.
• CUT...When the vehicle speed decreased to exces-
sively low speed compared with the ASCD set speed,
ASCD operation is cut off.
LO SPEED CUT
NON/
CUT
Indicates the vehicle cruise condition.
• NON...Vehicle speed is maintained at the ASCD set
speed.
• CUT...When the vehicle speed decreased lower than
the ASCD minimum set speed, ASCD operation is cut
off.
AT OD MONITOR
ON/
OFF
Indicates [ON/OFF] condition of A/T O/D according to
the input signal from the TCM.
AT OD CANCEL
ON/
OFF
Indicates [ON/OFF] condition of A/T O/D cancel request
signal.
CRUISE LAMP
ON/
OFF
Indicates [ON/OFF] condition of CRUISE indicator de-
termined by the ECM according to the input signals.
SET LAMP
ON/
OFF
Indicates [ON/OFF] condition of SET indicator deter-
mined by the ECM according to the input signals.
A/F ADJ-B1
—
Indicates the correction of a factor stored in ECM. The
factor is calculated from the difference between the tar-
get air-fuel ratio stored in ECM and the air-fuel ratio cal-
culated from A/F sensor 1 signal.
Monitored item
Unit
Description
Remarks
ECM-70
< SYSTEM DESCRIPTION >
[MR20DD]
DIAGNOSIS SYSTEM (ECM)
NOTE:
Any monitored item that does not match the vehicle is not displayed.
*: Indicates intake manifold runner control valve.
WORK SUPPORT MODE
Work Item
P/N POSI SW
ON/
OFF
Indicates [ON/OFF] condition from the reverse/neutral
position signal.
INT/A TEMP SE
°
C or
°
F
The intake air temperature (determined by the signal
voltage of the intake air temperature sensor) is indicat-
ed.
AC PRESS SEN
V
The signal voltage from the refrigerant pressure sensor
is displayed.
FUEL PRESS SEN
MPa
Indicates the fuel rail pressure computed by ECM ac-
cording to the input signals.
ATOM PRES SEN
V
The signal voltage from the barometric pressure sensor
is displayed.
FUEL INJ B1
msec
ECM-calculated injection pulse width of the fuel injector
on the Bank 1 side.
H/P FUEL PUMP DEG
deg
Displays ECM-calculated fuel discharge position of the
high pressure fuel pump.
FUEL PRES SEN V
mV
The signal voltage of FRP sensor is displayed.
EOP SENSOR
mV
The signal voltage of EOP sensor is displayed.
ECM TEMP 1
°
C
Displays a temperature calculated from a signal of ECM
temperature sensor 1.
ECM TEMP 2
°
C
Displays a temperature calculated from a signal of ECM
temperature sensor 2.
FUEL INJ TIM
BTDC
Indicates the fuel injection timing computed by ECM ac-
cording to the input signals.
FAN DUTY
%
• Indicates a command value for cooling fan. The value
is calculated by ECM based on input signals.
THRTL STK CNT B1
—
NOTE:
These items are displayed but are not applicable to this
model.
A/F SEN1 (B1)
V
• The A/F signal computed from the input signal of the
air fuel ratio (A/F) sensor 1 is displayed.
A/F-S ATMSPHRC CRCT
B1
—
Displays a determined value of atmospheric correction
factor necessary for correcting an A/F sensor signal in-
put to ECM. The signal used for the correction is an A/
F sensor signal transmitted while driving under atmo-
spheric pressure.
A/F-S ATMSPHRC CRCT
UP B1
count
Displays the number of updates of the A/F sensor atmo-
spheric correction factor.
A/F SEN1 DIAG2(B1)
INCMP/
CMPLT
• Indicates DTC P014C or P014D self-diagnosis condi-
tion.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
A/F SEN1 DIAG3(B1)
ABSNT/
PRSNT
• Indicates DTC P014C, P014D, P015A or P015B self-
diagnosis condition.
- ABSNT: The vehicle condition is not within the diag-
nosis range.
- PRSNT: The vehicle condition is within the diagnosis
range.
Monitored item
Unit
Description
Remarks
DIAGNOSIS SYSTEM (ECM)
ECM-71
< SYSTEM DESCRIPTION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
Work item
Condition
Usage
IDLE AIR VOL LEARN
The idle air volume that keeps the engine speed within the
specified range is memorized in ECM.
When learning the idle air volume
FUEL PRESSURE RE-
LEASE
• Fuel pump will stop by touching “START” during idling.
• Crank a few times after engine stops.
When releasing fuel pressure from fuel line
TARGET IDLE RPM
ADJ*
Idle condition
When setting target idle speed
SELF-LEARNING
CONT
The coefficient of self-learning control mixture ratio returns
to the original coefficient.
When clearing mixture ratio selflearning
value.
TARGET IGN TIM ADJ*
Idle condition
When adjusting target ignition timing
VIN REGISTRATION
In this mode, VIN is registered in ECM.
When registering VIN in ECM
CLSD THL POS LEARN
Ignition switch ON and engine stopped.
When learning the throttle valve closed po-
sition
SAVING DATA FOR RE-
PLC CPU
In this mode, save data that is in ECM.
When ECM is replaced.
WRITING DATA FOR
REPLC CPU
In this mode, write data stored by “SAVE DATA FOR CPU
REPLC” in work support mode to ECM.
When ECM is replaced.
TEST ITEM
CONDITION
JUDGMENT
CHECK ITEM (REMEDY)
ENG COOLANT
TEMP
Change the engine coolant tempera-
ture using CONSULT.
If malfunctioning symptom dis-
appears, see CHECK ITEM.
• Harness and connectors
• Engine coolant temperature
sensor
• Fuel injector
FUEL INJECTION
Change the amount of fuel injection
using CONSULT.
If malfunctioning symptom dis-
appears, see CHECK ITEM.
• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
PURG VOL CONT/V
• Engine: After warming up, run en-
gine at 1,500 rpm.
• Change the EVAP canister purge
volume control solenoid valve open-
ing percent using CONSULT.
Engine speed changes accord-
ing to the opening percent.
• Harness and connectors
• EVAP canister purge volume
control solenoid valve
FUEL PUMP RELAY
• Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON” and
“OFF” using CONSULT and listen to
operating sound.
Fuel pump relay makes the op-
erating sound.
• Harness and connectors
• Fuel pump relay
INTAKE MANIFOLD
RUNNER CON-
TROL VALVE
(OPEN/CLOSE)
• Ignition switch: ON (Engine
stopped)
• Turn the intake manifold runner con-
trol valve “ON” and “OFF” using
CONSULT to open or close.
Touch the intake manifold run-
ner control valve motor and
check the operating vibration
and sound.
• Harness and connectors
• Intake manifold runner control
valve
• Intake manifold runner control
valve motor
FAN DUTY CON-
TROL
*
• Engine: Idle
• Change duty ratio (0 - 100%) using
CONSULT.
Cooling fan moves and stops.
• Harness and connectors
• Cooling fan motor
• Cooling fan relay
• IPDM E/R
IGNITION TIMING
• Timing light: Set
• Retard the ignition timing using
CONSULT.
If malfunctioning symptom dis-
appears, see CHECK ITEM.
Perform Idle Air Volume Learn-
ing.
ECM-72
< SYSTEM DESCRIPTION >
[MR20DD]
DIAGNOSIS SYSTEM (ECM)
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
Teat Item
SRT & P-DTC MODE
SRT STATUS Mode
For items whose SRT codes are set, “CMPLT” is displayed on the CONSULT screen; for items whose SRT-
codes are not set, “INCMP” is displayed.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
POWER BALANCE
• Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: N (CVT), Neutral (M/
T)
• Cut off each injector signal one at a
time using CONSULT.
Engine runs rough or stops.
(Works for accidental fire.)
• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
INT V/T ASSIGN AN-
GLE
Changes intake valve timing using
CONSULT.
If malfunctioning symptom dis-
appears, see CHECK ITEM.
• Harness and connectors
• Intake valve timing control so-
lenoid valve
EXT V/T ASSIGN
ANGLE
Changes exhaust valve timing using
CONSULT.
If malfunctioning symptom dis-
appears, see CHECK ITEM.
• Harness and connectors
• Exhaust valve timing control
solenoid valve
TEST ITEM
CONDITION
JUDGMENT
CHECK ITEM (REMEDY)
Test mode
Test item
Reference page
HO2S2
O2 (B1) P0138
O2 (B1) P0137
A/F SEN1
A/F (B1) P0133
A/F (B1) P0130
ECM
ECM-73
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
ECU DIAGNOSIS INFORMATION
ECM
Reference Value
INFOID:0000000010702849
VALUES ON THE DIAGNOSIS TOOL
NOTE:
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica-
ble to this vehicle, refer to CONSULT display items.
• Numerical values in the following table are reference values.
• These values are input/output values that ECM receives/transmits and may differ from actual operations.
Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the
data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from
the camshaft position sensor and other sensors related to ignition timing.
• For outlines of following items, refer to
.
Monitor Item
Condition
Values/Status
ENG SPEED
• Connect the tachometer.
• Run engine and compare CONSULT value with the tachometer in-
dication.
Almost the same speed as
the tachometer indication.
MAS A/F SE-B1
.
B/FUEL SCHDL
.
A/F ALPHA-B1
.
COOLAN TEMP/S
Engine: After warming up
More than 70
°
C
A/F SEN1 (B1)
Engine: After warming up
Maintaining engine speed at
2,000 rpm
Fluctuates around 2.2 V
HO2S1 (B1)
• Engine: After warming up
• After keeping engine speed be-
tween 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute
under no load.
Revving engine from idle up to
3,000 rpm quickly
0 – 0.3 V
←→
Approx. 0.6 –
1.0 V
LEAN
←→
RICH
VHCL SPEED SE
Turn drive wheels and compare CONSULT value with the speedom-
eter indication.
Almost the same speed as
speedometer indication
BATTERY VOLT
Ignition switch: ON (Engine stopped)
11 – 14 V
ACCEL SEN 1
Ignition switch: ON (Engine
stopped)
Accelerator pedal: Fully re-
leased
0.6 – 0.9 V
Accelerator pedal: Fully de-
pressed
4.0 – 4.8 V
ACCEL SEN 2*
1
Ignition switch: ON (Engine
stopped)
Accelerator pedal: Fully re-
leased
0.3 – 4.7 V
Accelerator pedal: Fully de-
pressed
1.95 – 2.4 V
TP SEN 1-B1
• Ignition switch: ON (Engine
stopped)
• Selector lever: D (CVT), 1st (M/
T)
Accelerator pedal: Fully re-
leased
More than 0.36 V
Accelerator pedal: Fully de-
pressed
Less than 4.75 V
TP SEN 2-B1*
1
• Ignition switch: ON (Engine
stopped)
• Selector lever: D (CVT), 1st (M/
T)
Accelerator pedal: Fully re-
leased
More than 0.36 V
Accelerator pedal: Fully de-
pressed
Less than 4.75 V
START SIGNAL
Ignition switch: ON
→
START
→
ON
OFF
→
ON
→
OFF
ECM-74
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
ECM
CLSD THL POS
Ignition switch: ON (Engine
stopped)
Accelerator pedal: Fully re-
leased
ON
Brake pedal: Slightly de-
pressed
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
Blower fan switch: ON
ON
Blower fan switch: OFF
OFF
BRAKE SW
Ignition switch: ON
Brake pedal: Fully released
OFF
OFF
Brake pedal: depressed
ON
IGN TIMING
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
−
2 – 8
°
BTDC
2,000 rpm
18 – 38
°
BTDC
COMBUSTION
NOTE:
This item is displayed but are not applicable to this model.
—
CAL/LD VALUE
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• 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 (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
1.0 – 5.0 g/s
2,500 rpm
2.0 – 10.0 g/s
PURG VOL C/V
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
(Accelerator pedal: Not de-
pressed even slightly, after en-
gine starting)
1 %
2,000 rpm
1 – 90 %
INT/V TIM(B1)
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
−
5 – 5
°
CA
When revving engine up to
2,000 rpm quickly
Approx. 0 – 20
°
CA
EXH/V TIM B1
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
−
5 – 5
°
CA
When revving engine up to
2,500 rpm quickly
Approx. 0 – 30
°
CA
Monitor Item
Condition
Values/Status
ECM
ECM-75
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
INT/V SOL(B1)
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
0 %
When revving engine up to
2,000 rpm quickly
0 – 90 %
SWRL CONT S/V
*2
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
ON
4,000 rpm
OFF
VTC DTY EX B1
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
0 – 2 %
When revving engine up to
2,000 rpm quickly
Approx. 0 – 90 %
AIR COND RLY
Engine: After warming up, idle the
engine
A/C switch: OFF
OFF
A/C switch: ON
(Compressor operates)
ON
FUEL PUMP RLY
• For 1 seconds after turning ignition switch ON
• Engine is running or cranking
ON
Except above
OFF
THRTL RELAY
Ignition switch: ON
ON
HO2S1 HTR (B1)
• Engine speed is less than 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: More than 3,600 rpm
OFF
I/P PULLY SPD
• Connect the tachometer.
• Start the engine and compare
CONSULT value with the ta-
chometer indication.
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 value with the speedom-
eter indication.
Almost the same speed as
the speedometer indication
IDL A/V LEARN
• Engine: After warming up
• A/C switch: OFF
• No load
• Throttle valve closed position
learning: Completed
Idle air volume learning has al-
ready been performed suc-
cessfully.
CMPLT
Idle air volume learning has not
been performed yet.
YET
TRVL AFTER MIL
Ignition switch: ON
0 – 65,535 km
ENG OIL TEMP
Engine: After warming up
More than 70
°
C (158
°
F)
A/F S1 HTR (B1)
Engine: After warming up, idle the engine
(More than 140 seconds after starting engine)
4 – 100%
VHCL SPEED SE
Turn drive wheels and compare CONSULT value with the speedom-
eter indication.
Almost the same speed as
the speedmeter indication
SET VHCL SPD
Engine: After warming up
ASCD: Operating
The preset vehicle speed is
displayed.
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
Monitor Item
Condition
Values/Status
ECM-76
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
ECM
RESUME/ACC SW
Ignition switch: ON
RESUME/ACCELERATE
switch: Pressed
ON
RESUME/ACCELERATE
switch: Released
OFF
SET SW
Ignition switch: ON
SET/COAST switch: Pressed
ON
SET/COAST switch: Released
OFF
BRAKE SW1
(Brake pedal position switch)
Ignition switch: ON
Brake pedal: Fully released
ON
Brake pedal: Depressed
OFF
BRAKE SW2
(Stop lamp switch)
Ignition switch: ON
Brake pedal: Fully released
OFF
Brake pedal: Depressed
ON
VHCL SPD CUT
Ignition switch: ON
NON
LO SPEED CUT
Ignition switch: ON
NON
AT OD MONITOR
Ignition switch: ON
OFF
AT OD CANCEL
Ignition switch: ON
OFF
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 between
40 km/h and 100 km/h
ASCD: Operating
ON
ASCD: Not operating
OFF
A/F ADJ-B1
Engine: Idle
−
0.450 – 0.330
P/N POSI SW
Ignition switch: ON
Selector lever: P or N (CVT),
Neutral (M/T)
ON
Selector lever: Except above
position
OFF
INT/A TEMP SE
Engine: After warming up
Indicates intake air tempera-
ture
AC PRESS SEN
• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor oper-
ates)
1.0 – 4.0 V
FUEL PRES SEN
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
Approx. 2.74 MPa
2,000 rpm
Approx. 3.0 MPa
ATOM PRES SEN
Ignition switch: ON
3.15 - 4.60 V
FUEL INJ B1
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
Approx. 0.8 msec
2,000 rpm
Approx. 1.1 msec
H/P FUEL PUMP DEG
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
Approx. 255 – 275 deg
2,000 rpm
Approx. 255 – 275 deg
FUEL PRES SEN V
• Engine: After warming up
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
Approx. 820 – 1,140 mV
When revving engine up to
4,000 rpm quickly
Approx. 820 – 2,900 mV
Monitor Item
Condition
Values/Status
ECM
ECM-77
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ
from ECM terminals voltage signal.
*2: Indicates the intake manifold runner control valve.
*3: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to
PG-138, "FOR MAINTENANCE REQUIRED
BATTERY MODELS : Work Procedure"
.
*4: Varies with the atmospheric pressure changed by whether or elevation as this is an absolute pressure sensor.
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
• ECM is located in the engine room left side near battery.
• Specification data are reference values and are measured between each terminal and ground.
• Pulse signal is measured by CONSULT.
EOP SENSOR
• Engine oil temperature: 80
°
C
• Selector lever: P or N (CVT),
Neutral (M/T)
• A/C switch: OFF
• No load
Idle
Approx. 1,450 mV
2,000 rpm
Approx. 2,850 mV
ECM TEMP 1
• Engine: At cooling
• Ignition switch: Right after ON
Indicates the ambient tem-
perature.
ECM TEMP 2
• Engine: At cooling
• Ignition switch: Right after ON
Indicates the ambient tem-
perature.
FUEL INJ TIM
• Engine oil temperature: 80
°
C
• Selector lever: P or N position
• A/C switch: OFF
• No load
Idle
Approx. 62 deg
2,000 rpm
Approx. 62 deg
FAN DUTY
• Engine: Running
0 - 100%
THRTL STK CNT B1
NOTE:
This item is displayed but are not applicable to this model.
—
A/F SEN1 (B1)
• Engine: After warming up
Maintaining engine speed at
2,000 rpm
Fluctuates around 2.2 V
A/F-S ATMSPHRC CRCT B1
Engine: After warming up, idle the engine
Varies depending on vehicle
environment.
A/F-S ATMSPHRC CRCT UP
B1
Engine: Running
Varies depending on the
number of updates.
A/F SEN1 DIAG2 (B1)
DTC P014C and P014D self-diagnosis incomplete.
INCMP
DTC P014C and P014D self-diagnosis is complete.
CMPLT
A/F SEN1 DIAG3 (B1)
The vehicle condition is not within the diagnosis range of DTC
P014C or P014D.
ABSNT
The vehicle condition is within the diagnosis range of DTC P014C or
P014D.
PRSNT
Monitor Item
Condition
Values/Status
JSBIA0505ZZ
ECM-78
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
ECM
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
1
(G)
55
(GR)
Fuel injector No. 1 (HI)
Fuel injector No. 2 (HI)
Fuel injector No. 3 (HI)
Fuel injector No. 4 (HI)
Output
[Engine is running]
• Engine: after warming up
• Idle speed
NOTE:
The pulse cycle changes depend-
ing on rpm at idle.
BATTERY VOLTAGE
(11 – 14 V)
2
(L)
3
(B)
[Engine is running]
• Engine: after warming up
• Engine speed:2,000 rpm
BATTERY VOLTAGE
(11 – 14 V)
4
(W)
5
(R)
55
(GR)
Fuel injector No. 1 (LO)
Fuel injector No. 2 (LO)
Fuel injector No. 3 (LO)
Fuel injector No. 4 (LO)
Output
[Engine is running]
• Engine: after warming up
• Idle speed
NOTE:
The pulse cycle changes depend-
ing on rpm at idle.
BATTERY VOLTAGE
(11 – 14 V)
6
(P)
7
(W)
[Engine is running]
• Engine: after warming up
• Engine speed:2,000 rpm
BATTERY VOLTAGE
(11 – 14 V)
8
(B)
11
(B)
—
ECM ground
—
—
—
12
(—)
—
Shield
—
—
—
14
(W)
128
(B)
Reverse/Neutral position sig-
nal (M/T)
Park/Neutral position signal
(CVT)
Input
[Ignition switch: ON]
• Selector lever: P or N (CVT), Neu-
tral (M/T)
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
• Selector lever: Except above posi-
tion
0 V
15
(R)
—
Sensor ground (Camshaft
position sensor)
—
—
—
JPBIA4718ZZ
JPBIA4719ZZ
JPBIA4720ZZ
JPBIA4721ZZ
ECM
ECM-79
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
19
(W)
15
(R)
Camshaft position sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
NOTE:
The pulse cycle changes depend-
ing on rpm at idle.
1.0 – 2.0
[Engine is running]
• Engine: after warming up
• Engine speed: 2,000 rpm
1.0 – 2.0
20
(GR)
—
Sensor ground (Mass air flow
sensor, intake air tempera-
ture sensor)
—
—
—
21
(L)
44
(BR)
Sensor power supply
(Crankshaft position sensor)
—
[Ignition switch: ON]
5 V
23
(Y)
39
(R)
Sensor power supply
(Fuel rail pressure sensor, re-
frigerant pressure sensor,
engine oil pressure sensor)
—
[Ignition switch: ON]
5 V
24
(Y)
42
(B)
Sensor power supply
(Exhaust valve timing control
position sensor)
—
[Ignition switch: ON]
5 V
25
(L)
—
Sensor ground (Engine cool-
ant temperature sensor, en-
gine oil temperature sensor)
—
—
—
28
(BR)
20
(GR)
Mass air flow sensor
Input
[Ignition switch: ON]
• Engine stopped
0.4 V
[Engine is running]
• Engine: after warming up
• Idle speed
0.7 – 1.2 V
[Engine is running]
• Engine: after warming up
• Revving engine from idle to 4,000
rpm
NOTE:
The voltage rises smoothly in re-
sponse to revving up the engine.
0.7 – 1.2 V
→
2.4 V
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA4726ZZ
JPBIA4727ZZ
ECM-80
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
ECM
29
(GR)
39
(R)
Engine oil pressure sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
1.3 V
[Engine is running]
• Engine speed: 2,000 rpm
2.7 V
31
(G)
25
(L)
Engine coolant temperature
sensor
Input
[Engine is running]
0 – 4.8 V
Output voltage varies with engine
coolant temperature.
32
(P)
25
(L)
Engine oil temperature sen-
sor
Input
[Engine is running]
0 – 4.8 V
Output voltage varies with engine
oil temperature.
33
(G)
39
(R)
Fuel rail pressure sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
0.82 – 1.14 V
[Engine is running]
• Engine: after warming up
• Revving engine from idle to 4,000
rpm
0.82 – 2.9 V
34
(P)
39
(R)
Refrigerant pressure sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
• A/C switch: ON (Compressor op-
erates)
1.0 – 4.0 V
35
(V)
20
(GR)
Intake air temperature sen-
sor
Input
[Engine is running]
0 – 4.8 V
Output voltage varies with intake
air temperature.
36
(—)
—
Sensor ground (Knock sen-
sor)
—
—
—
39
(R)
—
Sensor ground (Fuel rail
pressure sensor, refrigerant
pressure sensor, engine oil
pressure sensor)
—
—
—
40
(W)
36
(—)
Knock sensor
Input
[Engine is running]
• Idle speed
2.5 V
42
(B)
—
Sensor ground (Exhaust
valve timing control position
sensor)
—
—
—
43
(B)
15
(R)
Sensor power supply (Cam-
shaft position sensor)
—
[Ignition switch: ON]
5 V
44
(BR)
—
Sensor ground (Crankshaft
position sensor)
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA3359ZZ
JPBIA3360ZZ
ECM
ECM-81
< ECU DIAGNOSIS INFORMATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
45
(G)
128
(B)
LIN communication line
Input/
Output
[Ignition switch: ON]
12 V
46
(LG)
42
(B)
Exhaust valve timing control
position sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
NOTE:
The pulse cycle changes depend-
ing on rpm at idle.
1.0 – 2.0
[Engine is running]
• Engine: after warming up
• Engine speed: 2,000 rpm
1.0 – 2.0
48
(GR)
44
(BR)
Crankshaft position sensor
Input
[Engine is running]
• Engine: after warming up
• Idle speed
NOTE:
The pulse cycle changes depend-
ing on rpm at idle.
4.0 V
[Engine is running]
• Engine: after warming up
• Engine speed: 2,000 rpm
4.0 V
49
(Y)
55
(GR)
Fuel injector driver power
supply 1
Input
[Engine is running]
• Engine: after warming up
• Idle speed
BATTERY VOLTAGE
(11 – 14 V)
50
(V)
54
(B)
High pressure fuel pump re-
lay
Input
[Engine is running]
• Engine: after warming up
• Idle speed
BATTERY VOLTAGE
(11 – 14 V)
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA4273ZZ
JPBIA4730ZZ
JPBIA4731ZZ
JPBIA4728ZZ
JPBIA4729ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст