Nissan Almera Tino V10 (2001 year). Manual — part 98
SEF396Y
ECM Terminals and Reference Value
NLEC0636
PREPARATION
NLEC0636S01
Models with ECM in engine compartment
NLEC0636S0101
1.
ECM is located under the cowl panel (behind the strut tower).
For the inspection, perform the following procedure.
SEF322Y
a.
Remove the engine control harness fixing clips.
SEF323Y
b.
Remove the ventilation hose.
+
To release the lock, push the quick connector.
SEF324Y
c.
Remove the ECM cover mounting bolts, then remove the ECM
cover from the vehicle.
: 4.0 - 7.8 N·m (0.4 - 0.8 kg-m, 35 - 69 in-lb)
d.
Remove the ECM cover bolts, then open the ECM cover.
: 4.0 - 6.8 N·m (0.4 - 0.7 kg-m, 35 - 60 in-lb)
e.
Remove the ECM bolts.
: 4.2 - 6.7 N·m (0.42 - 0.69 kg-m, 37 - 59 in-lb)
f.
Install in the reverse order of removal.
SEF289H
2.
Disconnect negative battery terminal.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value
EC-1129
SEF883Y
3.
Connect a break out box (SST) between the ECM and ECM
harness connectors.
+
Use extreme care not to touch 2 pins at one time.
+
Data is for comparison and may not be exact.
+
Be sure ECM unit is properly grounded before checking.
SEF289H
Models with ECM in cabin
NLEC0636S0102
ECM is locating beside of blower unit.
1.
Remove the ECM bracket fixing.
2.
Remove ECM harness protector.
3.
Disconnect negative battery terminal.
SEF883Y
4.
Connect a break out box (SST) between the ECM and ECM
harness connectors.
+
Use extreme care not to touch 2 pins at one time.
+
Data is for comparison and may not be exact.
+
Be sure ECM unit is properly grounded before checking.
ECM INSPECTION TABLE
NLEC0636S03
Remarks: Specification data are reference values and are mea-
sured 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 and Pulse
Signal)
104
105
106
B
B
B
ECM ground
[Engine is running]
+
Idle speed
Approximately 0V
107
108
109
R
R
R
Power supply for ECM
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value (Cont’d)
EC-1130
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage and Pulse
Signal)
204
L
Air conditioner relay
[Engine is running]
+
Air conditioner switch is “OFF”
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Both air conditioner switch and blower fan
switch are “ON”
(Compressor is operating)
Approximately 0.1V
209
G/W
Swirl control valve con-
trol solenoid valve
[Engine is running.]
+
Warm-up condition
+
Engine speed: 1,500 rpm
+
No load
Approximately 0.1V
[Engine is running.]
+
Idle speed
BATTERY VOLTAGE
(11 - 14V)
214
W/B
Glow relay
Refer to “Glow Control System”, EC-1267.
218
B
Sensors’ ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
219
LG/R
Cooling fan relay (Low)
[Engine is running]
+
Cooling fan is not operating
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Cooling fan is operating
Approximately 0.1V
221
LG/B
Cooling fan relay (High)
[Engine is running]
+
Cooling fan is not operating
+
Cooling fan is operating at low speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Cooling fan is operating at high speed
Approximately 0.1V
223
W
Mass air flow sensor
power supply
[Ignition switch “ON”]
Approximately 5V
224
R
Mass air flow sensor
[Engine is running]
+
Warm-up condition
+
Idle speed
1.5 - 2.0V
313
L/W
Electronic control fuel
injection pump
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0.1V
314
L/R
Electronic control fuel
injection pump
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0.4V
316
PU
Electronic control fuel
injection pump
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 2.5V
317
P
Electronic control fuel
injection pump
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 2.5V
325
G
ECM relay (Self-shutoff)
[Ignition switch “ON”]
[Ignition switch “OFF”]
+
For a few seconds after turning ignition switch
“OFF”
Approximately 0.25V
[Ignition switch “OFF”]
+
A few seconds passed after turning ignition
switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value (Cont’d)
EC-1131
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage and Pulse
Signal)
331
OR
Crankshaft position sen-
sor (TDC) ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
334
B/R
Engine coolant tem-
perature sensor ground
[Ignition switch “ON”]
Approximately 0V
337
338
350
351
W/L
PU/W
GY
OR/B
EGR volume control
valve
[Engine is running]
+
Warm-up condition
+
Idle speed
0.1 - 14V
(Voltage signals of each ECM
terminals differ according to
the control position of EGR
volume control valve.)
344
W
Crankshaft position sen-
sor (TDC)
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
SEF333Y
[Engine is running]
+
Warm-up condition
+
Engine speed is 2,000 rpm
Approximately 0V
SEF334Y
347
L/B
Engine coolant tem-
perature sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
403
R/L
Air conditioner switch
[Engine is running]
+
Air conditioner switch is “OFF”
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+
Both air conditioner switch and blower fan
switch are “ON”
(Compressor is operating)
Approximately 0.1V
405
R/G
Stop lamp switch
[Ignition switch “ON”]
+
Brake pedal fully released
Approximately 0V
[Ignition switch “ON”]
+
Brake pedal depressed
BATTERY VOLTAGE
(11 - 14V)
416
Y/B
Brake pedal position
switch
[Ignition switch “ON”]
+
Brake pedal fully released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
+
Brake pedal depressed
Approximately 0V
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value (Cont’d)
EC-1132
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage and Pulse
Signal)
417
PU/R
Vehicle speed sensor
[Engine is running]
+
Lift up the vehicle
+
In 1st gear position
+
Vehicle speed is 10 km/h (6 MPH)
0 - Approximately 8V
SEF891Y
[Engine is running]
+
Lift up the vehicle
+
In 2nd gear position
+
Vehicle speed is 30 km/h (19 MPH)
Approximately 6V
SEF892Y
418
G/OR
Park/Neutral position
switch
(where fitted)
[Ignition switch “ON”]
+
Gear position is “Neutral”
Approximately 0V
[Ignition switch “ON”]
+
Except the above gear position
BATTERY VOLTAGE
(11 - 14V)
422
B/Y
Start signal
[Ignition switch “ON”]
Approximately 0V
[Ignition switch “START”]
BATTERY VOLTAGE
(11 - 14V)
425
P/B
Accelerator position
sensor ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
426
BR/R
Accelerator position
switch (Idle) ground
[Ignition switch “ON”]
Approximately 0V
433
G/Y
Accelerator position
sensor power supply
[Ignition switch “ON”]
Approximately 5V
434
W
Accelerator position
sensor
[Ignition switch “ON”]
+
Accelerator pedal fully released
0.30 - 0.50V
[Ignition switch “ON”]
+
Accelerator pedal fully depressed
3.0 - 4.3V
435
W/G
Accelerator position
switch (Idle)
[Ignition switch “ON”]
+
Accelerator pedal fully released
Approximately 0V
[Ignition switch “ON”]
+
Accelerator pedal depressed
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value (Cont’d)
EC-1133
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage and Pulse
Signal)
439
L/OR
Tachometer
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 4.8V
SEF325Y
[Engine is running]
+
Warm-up condition
+
Engine speed is 2,000 rpm
Approximately 4.6V
SEF326Y
505
OR/L
Malfunction indicator
[Ignition switch “ON”]
Approximately 1V
[Engine is running]
+
Idle speed
BATTERY VOLTAGE
(11 - 14V)
507
W/R
Ignition switch
[Ignition switch “OFF”]
0V
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
508
OR
Glow lamp
[Ignition switch “ON”]
+
Glow lamp is “ON”
Approximately 1V
[Ignition switch “ON”]
+
Glow lamp is “OFF”
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
YD22DDTI
ECM Terminals and Reference Value (Cont’d)
EC-1134
Description
NLEC0637
Intermittent incidents (I/I) may occur. In many cases, the problem resolves itself (the part or circuit function
returns to normal without intervention). It is important to realize that the symptoms described in the custom-
er’s complaint often do not recur on DTC visits. Realize also that the most frequent cause of I/I occurrences
is poor electrical connections. Because of this, the conditions under which the incident occurred may not be
clear. Therefore, circuit checks made as part of the standard diagnostic procedure may not indicate the spe-
cific problem area.
COMMON I/I REPORT SITUATIONS
NLEC0637S01
STEP in Work Flow
Situation
II
The CONSULT-II is used. The SELF-DIAG RESULTS screen shows time data other than “0”.
III
The symptom described by the customer does not recur.
IV
DTC does not appear during the DTC Confirmation Procedure.
VI
The Diagnostic Procedure for XXXX does not indicate the problem area.
Diagnostic Procedure
NLEC0638
1
INSPECTION START
Erase DTCs. Refer to “HOW TO ERASE DTC”, EC-1096.
©
GO TO 2.
2
CHECK GROUND TERMINALS
Check ground terminals for corroding or loose connection.
Refer to GI-27, “GROUND INSPECTION”.
OK or NG
OK
©
GO TO 3.
NG
©
Repair or replace.
3
SEARCH FOR ELECTRICAL INCIDENT
Perform GI-22, “Incident Simulation Tests”.
OK or NG
OK
©
INSPECTION END
NG
©
Repair or replace.
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT
YD22DDTI
Description
EC-1135
Main Power Supply and Ground Circuit
ECM TERMINALS AND REFERENCE VALUE
NLEC0639
Remarks: 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 dam-
age 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)
104
105
106
B
B
B
ECM ground
[Engine is running]
+
Idle speed
Approximately 0V
107
108
109
R
R
R
Power supply for ECM
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
325
G
ECM relay (Self-shutoff)
[Ignition switch “ON”]
[Ignition switch “OFF”]
+
For a few seconds after turning ignition switch
“OFF”
Approximatley 0.25V
[Ignition switch “OFF”]
+
A few seconds passed after turning ignition
switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
507
W/R
Ignition switch
[Ignition switch “OFF”]
0V
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit
EC-1136
WIRING DIAGRAM (MODELS WITH ECM IN ENGINE COMPARTMENT)
NLEC0640
YEC721
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1137
WIRING DIAGRAM (MODELS WITH ECM IN CABIN)
NLEC1932
YEC857
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1138
DIAGNOSTIC PROCEDURE
NLEC0641
1
INSPECTION START
Start engine.
Is engine running?
Yes or No
Yes
©
GO TO 11.
No
©
GO TO 2.
2
CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 507 and ground with CONSULT-II or tester.
SEF895Y
OK or NG
OK
©
GO TO 4.
NG
©
GO TO 3.
3
DETECT MALFUNCTIONING PART
Check the following.
+
Harness connectors M50, F24 (where fitted)
+
Harness connectors M72, F44 (where fitted)
+
Fuse block (J/B) connector M1
+
10A fuse
+
Harness for open or short between ECM and fuse
©
Repair open circuit or short to ground or short to power in harness or connectors.
4
CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals 104, 105, 106 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 5.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1139
5
CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch “ON” and then “OFF”.
3. Check voltage between ECM terminals 107, 108, 109 and ground with CONSULT-II or tester.
SEF896Y
OK or NG
OK
©
Check electronic control fuel injection pump power supply circuit. Refer to “Diagnostic
Procedure”, EC-1251.
NG (Battery voltage
does not exist.)
©
GO TO 6.
NG (Battery voltage
exists for more than a
few seconds.)
©
GO TO 10.
6
CHECK ECM POWER SUPPLY CIRCUIT-III
1. Disconnect ECM relay. (For ECM relay location, refer to “Engine control component parts location”, EC-1071.)
2. Check voltage between relay terminals 1, 6 and ground with CONSULT-II or tester.
SEF399Y
OK or NG
OK
©
GO TO 8.
NG
©
GO TO 7.
7
DETECT MALFUNCTIONING PART
Check the following.
+
Harness connectors E76, F13 (where fitted)
+
10A fuse
+
20A fuse
+
Harness for open or short between ECM relay and battery
©
Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1140
8
CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 325 and ECM relay terminal 2. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 9.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
9
CHECK ECM POWER SUPPLY CIRCUIT-IV
1. Check harness continuity between ECM terminals 107, 108, 109 and ECM relay terminal 7. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 10.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
10
CHECK ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between ECM relay terminals 3 and 5, 7 and 6.
SEF296X
OK or NG
OK
©
GO TO 13.
NG
©
Replace ECM relay.
11
CHECK ECM POWER SUPPLY CIRCUIT-V
1. Turn ignition switch “OFF”.
2. Disconnect ECM relay. (For ECM relay location, refer to “Engine control component parts location”, EC-1071.)
3. Disconnect ECM harness connector.
4. Check harness continuity between ECM terminals 107, 108, 109 and ECM relay terminal 7. Refer to Wiring Diagram.
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 12.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1141
12
CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminals 104, 105, 106 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 13.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
13
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-1135.
©
INSPECTION END
TROUBLE DIAGNOSIS FOR POWER SUPPLY
YD22DDTI
Main Power Supply and Ground Circuit (Cont’d)
EC-1142
SEF987W
Component Description
NLEC0642
The mass air flow sensor (MAFS) is placed in the stream of intake
air. It measures the intake air flow rate by measuring a part of the
entire intake air flow. It consists of a hot film that is supplied with
electric current from the ECM. The temperature of the hot film is
controlled by the ECM a certain amount. The heat generated by the
hot film is reduced as the intake air flows around it. The more air,
the greater the heat loss.
Therefore, the ECM must supply more electric current to maintain
the temperature of the hot film as air flow increases. The ECM
detects the air flow by means of this current change.
CONSULT-II Reference Value in Data Monitor
Mode
NLEC0643
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
MAS AIR/FL SE
+
Engine: After warming up
+
Air conditioner switch: “OFF”
+
Shift lever: Neutral position
+
No-load
Idle
1.5 - 2.0V
ECM Terminals and Reference Value
NLEC0644
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 dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
218
B
Sensor’s ground
[Engine is running]
+
Warm-up condition
+
Idle speed
Approximately 0V
223
W
Mass air flow sensor
power supply
[Ignition switch “ON”]
Approximately 5V
224
R
Mass air flow sensor
[Engine is running]
+
Warm-up condition
+
Idle speed
1.5 - 2.0V
On Board Diagnosis Logic
NLEC0645
DTC
Malfunction is detected when ...
Check Items (Possible Cause)
P0100
0102
+
An excessively high or low voltage from the sen-
sor is sent to ECM.
+
Harness or connectors
(The sensor circuit is open or shorted.)
+
Mass air flow sensor
DTC P0100 MASS AIR FLOW SEN
YD22DDTI
Component Description
EC-1143
SEF817Y
DTC Confirmation Procedure
NLEC0646
WITH CONSULT-II
NLEC0646S01
1)
Turn ignition switch “ON”, and wait at least 6 seconds.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Start engine and wait at least 3 seconds.
4)
If DTC is detected, go to “Diagnostic Procedure”, EC-1147.
WITHOUT CONSULT-II
NLEC0646S02
1)
Turn ignition switch “ON”, and wait at least 6 seconds.
2)
Start engine and wait at least 3 seconds.
3)
Turn ignition switch “OFF”, wait at least 5 seconds and then
turn “ON”.
4)
Perform “Diagnostic Test Mode II (Self-diagnostic results)” with
ECM.
5)
If DTC is detected, go to “Diagnostic Procedure”, EC-1147.
DTC P0100 MASS AIR FLOW SEN
YD22DDTI
DTC Confirmation Procedure
EC-1144
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