Nissan Almera Tino V10 (2001 year). Manual — part 68
SYMPTOM
Reference
page
HARD/NO
ST
AR
T/REST
AR
T
(EXCP
.
HA)
ENGINE
ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK
KNOCK/DET
ONA
TION
LACK
OF
POWER/POOR
ACCELERA
TION
HIGH
IDLE/LOW
IDLE
ROUGH
IDLE/HUNTING
IDLING
VIBRA
TION
SLOW/NO
RETURN
T
O
IDLE
OVERHEA
TS/W
A
TER
TEMPERA
TURE
HIGH
EXCESSIVE
FUEL
CONSUMPTION
EXCESSIVE
OIL
CONSUMPTION
BA
TTER
Y
DEAD
(UNDER
CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
Crankshaft position sensor (OBD)
circuit
2
2
Camshaft position sensor circuit
3
2
3
Mass air flow sensor circuit
1
1
2
2
2
2
2
2
Heated oxygen sensor 1 (front)
circuit
1
2
3
2
2
2
2
Engine coolant temperature sen-
sor circuit
1
1
2
3
2
3
2
2
3
2
Throttle position sensor circuit
1
2
2
2
2
2
2
2
Incorrect throttle position sensor
adjustment
3
1
1
1
1
1
1
1
Vehicle speed sensor circuit
2
3
3
3
Knock sensor circuit
2
3
ECM
2
2
3
3
3
3
3
3
3
3
3
Start signal circuit
2
PNP switch circuit
3
3
3
3
3
Power steering oil pressure
switch circuit
2
3
3
Electrical load signal circuit
3
3
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Symptom Matrix Chart (Cont’d)
EC-649
SYSTEM — ENGINE MECHANICAL & OTHER
NLEC1372S02
SYMPTOM
Reference
page
HARD/NO
ST
AR
T/REST
AR
T
(EXCP
.
HA)
ENGINE
ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK
KNOCK/DET
ONA
TION
LACK
OF
POWER/POOR
ACCELERA
TION
HIGH
IDLE/LOW
IDLE
ROUGH
IDLE/HUNTING
IDLING
VIBRA
TION
SLOW/NO
RETURN
T
O
IDLE
OVERHEA
TS/W
A
TER
TEMPERA
TURE
HIGH
EXCESSIVE
FUEL
CONSUMPTION
EXCESSIVE
OIL
CONSUMPTION
BA
TTER
Y
DEAD
(UNDER
CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG AH
AJ
AK
AL
AM HA
Fuel
Fuel tank
5
5
FE section
Fuel piping
5
5
5
5
5
5
—
Vapor lock
Valve deposit
5
5
5
5
5
5
5
Poor fuel (Heavy weight gasoline,
Low octane)
Air
Air duct
5
5
5
5
5
5
Air cleaner
Air leakage from air duct
(Mass air flow sensor — throttle
body)
5
5
5
5
Throttle body, Throttle wire
FE section
Air leakage from intake manifold/
Collector/Gasket
—
Cranking
Battery
1
1
1
1
1
1
1
1
EL section
Alternator circuit
Starter circuit
3
Drive plate
6
EM section
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Symptom Matrix Chart (Cont’d)
EC-650
SYMPTOM
Reference
page
HARD/NO
ST
AR
T/REST
AR
T
(EXCP
.
HA)
ENGINE
ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK
KNOCK/DET
ONA
TION
LACK
OF
POWER/POOR
ACCELERA
TION
HIGH
IDLE/LOW
IDLE
ROUGH
IDLE/HUNTING
IDLING
VIBRA
TION
SLOW/NO
RETURN
T
O
IDLE
OVERHEA
TS/W
A
TER
TEMPERA
TURE
HIGH
EXCESSIVE
FUEL
CONSUMPTION
EXCESSIVE
OIL
CONSUMPTION
BA
TTER
Y
DEAD
(UNDER
CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG AH
AJ
AK
AL
AM HA
Engine
Cylinder head
5
5
5
5
5
5
5
5
EM section
Cylinder head gasket
4
3
Cylinder block
6
6
6
6
6
6
6
6
4
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Valve
mecha-
nism
Timing chain
5
5
5
5
5
5
5
5
EM section
Camshaft
Intake valve
3
Exhaust valve
Exhaust
Exhaust manifold/Tube/Muffler/
Gasket
5
5
5
5
5
5
5
5
FE section
Three way catalyst
Lubrica-
tion
Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
5
5
5
5
5
5
5
5
MA, EM and
LC sections
Oil level (Low)/Filthy oil
LC section
Cooling
Radiator/Hose/Radiator filler cap
5
5
5
5
5
5
5
4
5
Thermostat
5
Water pump
Water gallery
Cooling fan
5
Coolant level (low)/Contaminated
coolant
MA section
1 - 6: The numbers refer to the order of inspection.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Symptom Matrix Chart (Cont’d)
EC-651
CONSULT-II Reference Value in Data Monitor
Mode
NLEC1373
Remarks:
+
Specification data are reference values.
+
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
(i.e., Adjust ignition timing with a timing light before monitoring IGN TIMING. Specification data might be displayed even when igni-
tion timing is not adjusted to specification. This IGN TIMING monitors the data calculated by the ECM according to the input signals
from the crankshaft position sensor and other ignition timing related sensors.)
+
If the real-time diagnosis results are NG, and the on board diagnostic system results are OK, when diagnosing the mass air flow sensor,
first check to see if the fuel pump control circuit is normal.
MONITOR ITEM
CONDITION
SPECIFICATION
ENG SPEED
+
Tachometer: Connect
+
Run engine and compare tachometer indication with the CONSULT-II
value.
Almost the same speed as the
CONSULT-II value.
MAS A/F SE-B1
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
1.0 - 1.7V
2,500 rpm
1.5 - 2.1V
B/FUEL SCHDL
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
2.4 - 3.2 msec
2,000 rpm
1.4 - 2.8 msec
A/F ALPHA-B1
+
Engine: After warming up
Maintaining engine speed at 2,000
rpm
53 - 155%
COOLAN TEMP/S
+
Engine: After warming up
More than 70°C (158°F)
HO2S1 (B1)
+
Engine: After warming up
Maintaining engine speed at 2,000
rpm
0 - 0.3V
←→
0.6 - 1.0V
HO2S1 MNTR (B1)
LEAN
←→
RICH
Changes more than 5 times
during 10 seconds.
HO2S2 (B1)
+
Engine: After warming up
Revving engine from idle to 3,000
rpm quickly
0 - 0.3V
←→
0.6 - 1.0V
HO2S2 MNTR (B1)
LEAN
←→
RICH
VHCL SPEED SE
+
Turn drive wheels and compare speedometer indication with the CON-
SULT-II value
Almost the same speed as the
CONSULT-II value
BATTERY VOLT
+
Ignition switch: ON (Engine stopped)
11 - 14V
THRTL POS SEN
+
Engine: Idle
Throttle valve fully closed
0.15 - 0.85V
+
Ignition switch: ON
(Engine stopped)
Throttle valve fully opened
3.5 - 4.7V
EGR TEMP SEN
(where fitted)
+
Engine: After warming up
Less than 4.5V
START SIGNAL
+
Ignition switch: ON
→
START
→
ON
OFF
→
ON
→
OFF
CLSD THL POS
+
Engine: Idle
Throttle valve: Idle position
ON
+
Ignition switch: ON
(Engine stopped)
Throttle valve: Slightly open
OFF
AIR COND SIG
+
Engine: After warming up, idle
the engine
A/C switch “OFF”
OFF
A/C switch “ON”
(Compressor operates)
ON
P/N POSI SW
+
Ignition switch: ON
Shift lever “P” or “N”
ON
Except above
OFF
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
CONSULT-II Reference Value in Data Monitor Mode
EC-652
MONITOR ITEM
CONDITION
SPECIFICATION
PW/ST SIGNAL
+
Engine: After warming up, idle
the engine
Steering wheel in neutral position
(forward direction)
OFF
The steering wheel is turned
ON
LOAD SIGNAL
+
Engine: running
Rear window defogger or headlamp
“ON”
ON
Except the above
OFF
IGNITION SW
+
Ignition switch: ON
→
OFF
ON
→
OFF
INJ PULSE-B1
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
2.4 - 3.2 msec
2,000 rpm
1.9 - 2.8 msec
IGN TIMING
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
15° BTDC
2,000 rpm
Approx. 40° BTDC
CAL/LD VALUE
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
Not used
2,500 rpm
Not used
ABSOL TH·P/S
+
Engine: Idle
Throttle valve fully closed
0.0°
+
Ignition switch: ON
(Engine stopped)
Throttle valve fully opened
Approx. 80°
MASS AIRFLOW
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: N
+
No-load
Idle
2.5 - 5.0 g·m/s
2,500 rpm
7.1 - 12.5 g·m/s
IACV-AAC/V
+
Engine: After warming up
+
Air conditioner switch: OFF
+
Shift lever: “N”
+
No-load
Idle
5 - 25 steps
2,000 rpm
—
PURG VOL C/V
+
Engine: After warming up
+
No-load
Idle
0%
Revving engine
—
EGR VOL CON/V
(where fitted)
+
Engine: After warming up
+
Shift lever: “N”
+
No-load
Idle
0 step
Revving engine up to 3,000 rpm
quickly
10 - 55 steps
AIR COND RLY
+
Air conditioner switch: OFF
→
ON
OFF
→
ON
FUEL PUMP RLY
+
Ignition switch is turned to ON (Operates for 1 second)
+
Engine running and cranking
+
When engine is stopped (stops in 1.5 seconds)
ON
+
Except as shown above
OFF
COOLING FAN
+
After warming up engine, idle
the engine.
+
Air conditioner switch: OFF
Engine coolant temperature is 94°C
(201°F) or less
OFF
Engine coolant temperature is
between 95°C (203°F) and 104°C
(219°F)
LOW
Engine coolant temperature is 105°C
(221°F) or more
HIGH
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
CONSULT-II Reference Value in Data Monitor Mode (Cont’d)
EC-653
MONITOR ITEM
CONDITION
SPECIFICATION
HO2S1 HTR (B1)
+
Engine speed: Below 3,200 rpm
ON
+
Engine speed: Above 3,200 rpm
OFF
HO2S2 HTR (B1)
+
Engine speed
Below 3,600 rpm [After driving for 2
minutes at a speed of 70 km/h (43
MPH) or more]
ON
Above 3,600 rpm
OFF
+
Ignition switch ON (Engine stopped)
OFF
TRVL AFTER MI
+
Ignition switch: ON
Vehicle has traveled after MI has
turned ON.
0 - 65,535 km
(0 - 40,722 miles)
Major Sensor Reference Graph in Data Monitor
Mode
NLEC1374
The following are the major sensor reference graphs in “DATA MONITOR” mode.
THRTL POS SEN, ABSOL TH·P/S, CLSD THL POS
NLEC1374S01
Below is the data for “THRTL POS SEN”, “ABSOL TH·P/S” and “CLSD THL POS” when depressing the accel-
erator pedal with the ignition switch “ON”.
The signal of “THRTL POS SEN” and “ABSOL TH·P/S” should rise gradually without any intermittent drop or
rise after “CLSD THL POS” is changed from “ON” to “OFF”.
SEF306Y
ENG SPEED, MAS A/F SE-B1, THRTL POS SEN, HO2S2 (B1), HO2S1 (B1), INJ PULSE-B1
NLEC1374S02
Below is the data for “ENG SPEED”, “MAS A/F SE-B1”, “THRTL POS SEN”, “HO2S2 (B1)”, “HO2S1 (B1)” and
“INJ PULSE-B1” when revving engine quickly up to 4,800 rpm under no load after warming up engine to nor-
mal operating temperature.
Each value is for reference, the exact value may vary.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
CONSULT-II Reference Value in Data Monitor Mode (Cont’d)
EC-654
SEF241Y
SEF601Y
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Major Sensor Reference Graph in Data Monitor Mode (Cont’d)
EC-655
SEF170YA
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Major Sensor Reference Graph in Data Monitor Mode (Cont’d)
EC-656
SEF553Y
JEF096Y
SEF097Y
ECM Terminals and Reference Value
NLEC1375
PREPARATION
NLEC1375S01
Models with ECM in Engine Compartment
NLEC1375S0101
1.
The ECM is located under the cowl panel on the passenger
side (behind the strut tower). Remove it from the engine room
side.
+
Remove the bracket fixing ECM harness.
+
Remove the quick connector of the ventilation hose in the ECM
compartment room by pressing in the direction of the arrow.
+
Pull the ECM box out from under the cowl panel by removing
the two ECM box attaching bolts.
+
Remove the five bolts on ECM box installation cover.
: 3.9 - 6.9 N·m (0.39 - 0.71 kg-m, 34 - 61 in-lb)
+
Remove the three ECM installation bolts.
: 4.1 - 6.8 N·m (0.41 - 0.70 kg-m, 36 - 60 in-lb)
SEF098Y
2.
Remove ECM harness protector.
SEF908W
+
When
connecting
or
disconnecting
ECM
harness
connector, use lever as shown.
When connecting, fasten connector securely with lever
moved until it stops.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
Major Sensor Reference Graph in Data Monitor Mode (Cont’d)
EC-657
SEF367I
3.
Perform all voltage measurements with the connector con-
nected. Extend tester probe as shown to perform tests easily.
+
Open harness securing clip to make testing easier.
+
Use extreme care not to touch 2 pins at one time.
+
Data is for comparison and may not be exact.
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM’s
transistor. Use a ground other than ECM terminals, such as
the ground.
SEF908W
Models with ECM in cabin
NLEC1375S0102
ECM is locating beside of blower unit.
1.
Remove the ECM bracket fixing.
2.
Remove ECM harness protector.
+
When
connecting
or
disconnecting
ECM
harness
connector, use lever as shown.
When connecting, fasten connector securely with lever
moved until it stops.
SEF367I
3.
Perform all voltage measurements with the connector con-
nected. Extend tester probe as shown to perform tests easily.
+
Open harness securing clip to make testing easier.
+
Use extreme care not to touch 2 pins at one time.
+
Data is for comparison and may not be exact.
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM’s
transistor. Use a ground other than ECM terminals, such as
the ground.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-658
ECM HARNESS CONNECTOR TERMINAL LAYOUT
NLEC1375S02
SEF970W
ECM INSPECTION TABLE
NLEC1375S03
Specification data are reference values and are measured between
each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM’s
transistor. Use a ground other than ECM terminals, such as
the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
3
W/R
Heated oxygen sensor
2 heater (rear)
[Engine is running]
+
Engine speed is below 3,600 rpm
+
After driving for 2 minutes at a speed of 70
km/h (43 MPH) or more
Approximately 0.7V
[Ignition switch “ON”]
+
Engine stopped
+
Engine speed is above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
4
L
Heated oxygen sensor
1 heater (front)
[Engine is running]
+
Engine speed is below 3,200 rpm
Approximately 0V
[Engine is running]
+
Engine speed is above 3,200 rpm
BATTERY VOLTAGE
(11 - 14V)
6
7
15
16
BR
LG
GY/L
OR
IACV-AAC valve
[Engine is running]
+
Warm-up condition
+
Idle speed
0.1 - 14V
8
9
17
18
SB
W/B
R/W
G/R
EGR volume control
valve (where fitted)
[Engine is running]
+
Warm-up condition
+
Rev engine from 2,000 to 4,000 rpm
0 - 14V
10
Y/L
CVT signal No. 3
[Engine is running]
+
Idle speed
Approximately 0V
12
LG/RB
Cooling fan relay (High)
[Engine is running]
+
Cooling fan is not operating
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Cooling fan (High) is operating
0 - 0.6V
13
LG/R
Cooling fan relay
[Engine is running]
+
Cooling fan is not operating
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Cooling fan is operating
Approximately 0V
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-659
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
14
P
EVAP canister purge
volume control valve
(ON/OFF duty)
[Engine is running]
+
Warm-up condition
+
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Warm-up condition
+
Engine speed is about 2,000 rpm
5 - 12V
SEF975W
19
BR/W
CVT signal No. 5
[Engine is running]
+
Idle speed
Approximately 7.5V
21
B/P
Fuel pump relay
[Ignition switch “ON”]
+
For 1 second after turning ignition switch “ON”
[Engine is running]
0 - 1V
[Ignition switch “ON”]
+
More than 1 second after turning ignition
switch “ON”
BATTERY VOLTAGE
(11 - 14V)
22
OR/L
Malfunction indicator
[Ignition switch “ON”]
0 - 1V
[Engine is running]
+
Idle speed
BATTERY VOLTAGE
(11 - 14V)
23
L
Air conditioner relay
[Engine is running]
+
Both A/C switch and blower switch are “ON”
Approximately 0V
[Engine is running]
+
A/C switch is “OFF”
BATTERY VOLTAGE
(11 - 14V)
31
W/G
ECM relay (Self shut-
off)
[Ignition switch “OFF”]
+
For a few seconds after turning ignition switch
“OFF”
0 - 1V
[Ignition switch “OFF”]
+
A few seconds passed after turning ignition
switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
32
L/OR
Tachometer
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 10.5V
SEF973W
[Engine is running]
+
Engine speed is 2,000 rpm
Approximately 10.5V
SEF974W
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-660
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
35
W/B
Ignition signal
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0.3V
SEF996V
[Engine is running]
+
Engine speed is 2,000 rpm
Approximately 0.5V
SEF997V
36
G
Ignition check
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 13V
SEF998V
[Engine is running]
+
Engine speed is 2,000 rpm
Approximately 13V
SEF999V
40
Y/PU
Throttle position switch
(Closed position)
[Engine is running]
+
Accelerator pedal released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
+
Accelerator pedal depressed
Approximately 0V
41
B/Y
Start signal
[Ignition switch “ON”]
Approximately 0V
[Ignition switch “START”]
9 - 12V
42
G/OR
PNP switch
[Ignition switch “ON”]
+
Gear position is “P” or “N”
Approximately 0V
[Ignition switch “ON”]
+
Except the above gear position
BATTERY VOLTAGE
(11 - 14V)
43
B/R
Ignition switch
[Ignition switch “OFF”]
0V
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-661
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
44
L/R
Air conditioner switch
[Engine is running]
+
Both air conditioner switch and blower switch
are “ON” (Compressor operates)
Approximately 0V
[Engine is running]
+
Air conditioner switch is “OFF”
Approximately 5V
46
PU/W
Power steering oil pres-
sure switch
[Engine is running]
+
Steering wheel is fully turned
Approximately 0V
[Engine is running]
+
Steering wheel is not turned
Approximately 5V
48
B
ECM ground
[Engine is running]
+
Idle speed
Engine ground
50
L/B
Electrical load signal
(Headlamp and
Rear defogger)
[Engine is running]
+
Headlamp switch or rear defogger switch is
“ON”
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Headlamp switch and rear defogger switch are
“OFF”
Approximately 0V
51
LG/B
Blower fan SW
[Ignition switch “ON”]
+
Blower fan switch is “ON”
Approximately 0V
[Ignition switch “ON”]
+
Blower fan switch is “OFF”
Approximately 5V
54
Y/R
CVT signal No. 1
[Engine is running]
+
Idle speed
Approximately 0 - 3.5V
55
Y/G
CVT signal No. 2
[Engine is running]
+
Idle speed
Approximately 0 - 3.5V
56
G/Y
CVT signal No. 4
[Engine is running]
+
Idle speed
+
“R” position
Approximately 0 - 3.5V
57
B
ECM ground
[Engine is running]
+
Idle speed
Engine ground
58
B
Sensors’ ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
61
G
Mass air flow sensor
[Engine is running]
+
Warm-up condition
+
Idle speed
1.3 - 1.7V
[Engine is running]
+
Warm-up condition
+
Engine speed is 2,500 rpm
1.8 - 2.4V
62
W
Heated oxygen sensor
1 (front)
[Engine is running]
+
Warm-up condition
+
Engine speed is 2,000 rpm
0 - Approximately 1.0V
SEF008W
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-662
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
63
L
Heated oxygen sensor
2 (rear)
[Engine is running]
+
After warming up to normal operating tempera-
ture and engine speed is 3,000 rpm
0 - Approximately 1.0V
64
W/R
Intake air temperature
sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with
intake air temperature
65
W
Crankshaft position
sensor (OBD)
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 1.3V (AC
range)
SEF814Z
[Engine is running]
+
Engine speed is 2,000 rpm
Approximately 2.0V (AC
range)
SEF815Z
66
75
L
L
Camshaft position sen-
sor (Reference signal)
[Engine is running]
+
Warm-up condition
+
Idle speed
0.1 - 0.4V
SEF006W
[Engine is running]
+
Engine speed is 2,000 rpm
0.1 - 0.4V
SEF007W
67
W/L
Power supply for ECM
(Back-up)
[Ignition switch “OFF”]
BATTERY VOLTAGE
(11 - 14V)
70
BR/Y
Engine coolant tem-
perature sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
71
GY
Throttle position sensor
signal output
[Engine is running]
+
Warm-up condition
+
Accelerator pedal fully released
0.15 - 0.85V
[Ignition switch “ON”]
+
Accelerator pedal fully depressed
3.5 - 4.7V
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-663
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
72
PU
EGR temperature sen-
sor
(where fitted)
[Engine is running]
+
Warm-up condition
+
Idle speed
Less than 4.5V
[Engine is running]
+
Warm-up condition
+
EGR system is operating
0 - 1.0V
73
B
Mass air flow sensor
ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
74
R/L
Refrigerant pressure
sensor
[Engine is running]
+
Air conditioner switch is “ON”
(Compressor operates)
1.0 - 4.0V
[Engine is running]
+
Warm-up condition
+
Idle speed
+
Air conditioner switch is turned from “ON” to
“OFF”
Voltage is gradually decreas-
ing.
81
W
Knock sensor
[Engine is running]
+
Idle speed
2.0 - 3.0V
85
B/W
Camshaft position sen-
sor (Position signal)
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 2.5V
SEF004W
[Engine is running]
+
Engine speed is 2,000 rpm
Approximately 2.4V
SEF005W
86
OR/W
Vehicle speed sensor
[Engine is running]
+
Lift up the vehicle
+
Vehicle speed is 40 km/h (25 MPH)
0 - Approximately 5V
SEF976W
91
PU
CVT check signal
[Engine is running]
+
Idle speed
0 - Approximately 5V
92
Y
Throttle position sensor
[Engine is running]
+
Accelerator pedal released
0.15 - 0.85V
[Ignition switch “ON”]
+
Accelerator pedal fully depressed
3.5 - 4.7V
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SR20DE
ECM Terminals and Reference Value (Cont’d)
EC-664
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