Almera Tino V10 (2003 year). Manual — part 94
IGNITION SIGNAL
EC-523
[QG (WITH EURO-OBD)]
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3.
Check resistance between condenser terminals 1 and 2.
IGNITION COIL WITH POWER TRANSISTOR
1.
Turn ignition switch “OFF”.
2.
Disconnect ignition coil harness connector.
3.
Check resistance between ignition coil terminals as follows.
Removal and Installation
EBS00QTB
IGNITION COIL WITH POWER TRANSISTOR
Refer to
.
Resistance: Above 1 M
Ω
at 25
°
C (77
°
F)
MBIB0031E
Terminal No.
Resistance
Ω
[at 25
°
C (77
°
F)]
3 and 1
Except 0 or
∞
3 and 2
Except 0
1 and 2
MBIB0032E
EC-524
[QG (WITH EURO-OBD)]
INJECTOR CIRCUIT
INJECTOR CIRCUIT
PFP:16600
Component Description
EBS00QTC
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the injector circuit, the coil in the injector is
energized. The energized coil pulls the needle valve back and allows
fuel to flow through the injector into the intake manifold. The amount
of fuel injected depends upon the injection pulse duration. Pulse
duration is the length of time the injector remains open. The ECM
controls the injection pulse duration based on engine fuel needs.
CONSULT-II Reference Value in Data Monitor Mode
EBS00QTD
Specification data are reference values.
*: This item is displayed with A/T models.
SEF375Z
MONITOR ITEM
CONDITION
SPECIFICATION
B/FUEL SCHDL
●
Engine: After warming up
●
Shift lever:
N (A/T models)
Neutral (M/T models)
●
Air conditioner switch: OFF
●
No-load
Idle
1.5 - 3.0 msec
2,000 rpm
1.2 - 3.0 msec
INJ PULSE-B1
INJ PULSE-B2
*
●
Engine: After warming up
●
Shift lever:
N (A/T models)
Neutral (M/T models)
●
Air conditioner switch: OFF
●
No-load
Idle
2.0 - 3.5 msec
2,000 rpm
1.5 - 3.5 msec
INJECTOR CIRCUIT
EC-525
[QG (WITH EURO-OBD)]
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Wiring Diagram
EBS00QTE
YEC474A
EC-526
[QG (WITH EURO-OBD)]
INJECTOR CIRCUIT
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
EBS00QTF
1.
INSPECTION START
Turn ignition switch to “START”.
Is any cylinder ignited?
Yes or No
Yes
>> GO TO 2.
No
>> GO TO 3.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
22
23
41
42
G/B
R/B
L/B
Y/B
Injector No. 3
Injector No. 1
Injector No. 4
Injector No. 2
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
PBIB0529E
PBIB0530E
INJECTOR CIRCUIT
EC-527
[QG (WITH EURO-OBD)]
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2.
CHECK OVERALL FUNCTION
With CONSULT-II
1.
Start engine.
2.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3.
Make sure that each circuit produces a momentary engine
speed drop.
Without CONSULT-II
1.
Start engine.
2.
Listen to each injector operating sound.
Clicking noise should be heard.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.
PBIB0133E
MEC703B
EC-528
[QG (WITH EURO-OBD)]
INJECTOR CIRCUIT
3.
CHECK INJECTOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect injector harness connector.
3.
Turn ignition switch “ON”.
4.
Check voltage between injector terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M71, F45
●
Fuse block (J/B) connector M1
●
10A fuse
●
Harness for open or short between injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between injector terminal 2 and ECM terminals 22, 23, 41, 42.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK INJECTOR
Refer to
EC-529, "Component Inspection"
.
OK or NG
OK
>> GO TO 7.
NG
>> Replace injector.
MBIB0101E
Voltage: Battery voltage
PBIB0582E
Continuity should exist.
INJECTOR CIRCUIT
EC-529
[QG (WITH EURO-OBD)]
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7.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS00QTG
INJECTOR
1.
Disconnect injector harness connector.
2.
Check resistance between terminals as shown in the figure.
Removal and Installation
EBS00QTH
INJECTOR
Refer to
EM-29, "FUEL INJECTOR AND FUEL TUBE"
.
Resistance: 13.5 - 17.5
Ω
[at 20
°
C (68
°
F)]
PBIB0181E
EC-530
[QG (WITH EURO-OBD)]
FUEL PUMP CIRCUIT
FUEL PUMP CIRCUIT
PFP:17042
Description
EBS00QTI
SYSTEM DESCRIPTION
*: The ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor Mode
EBS00QTJ
Specification data are reference values.
Sensor
Input Signal to ECM
ECM Function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed
*
Fuel pump control
Fuel pump relay
Battery
Battery voltage
*
Condition
Fuel pump operation
Ignition switch is turned to ON.
Operates for 1 second.
Engine running and cranking
Operates.
When engine is stopped
Stops in 1.5 seconds.
Except as shown above
Stops.
MBIB0046E
MONITOR ITEM
CONDITION
SPECIFICATION
FUEL PUMP RLY
●
For 1 seconds after turning ignition switch ON
●
Engine running or cranking
ON
●
Except above conditions
OFF
FUEL PUMP CIRCUIT
EC-531
[QG (WITH EURO-OBD)]
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Wiring Diagram
EBS00QTK
YEC475A
EC-532
[QG (WITH EURO-OBD)]
FUEL PUMP CIRCUIT
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.
Diagnostic Procedure
EBS00QTL
1.
CHECK OVERALL FUNCTION
1.
Turn ignition switch “ON”.
2.
Pinch fuel feed hose with two fingers.
Fuel pressure pulsation should be felt on the fuel hose for 1
second after ignition switch is turned “ON”.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect fuel pump relay.
3.
Turn ignition switch “ON”.
4.
Check voltage between fuel pump relay terminals 1, 5 and
ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
113
B/P
Fuel pump relay
[Ignition switch “ON”]
●
For 1 seconds after turning ignition switch “ON”
[Engine is running]
0 - 1.0V
[Ignition switch “ON”]
●
More than 1 seconds after turning ignition switch
“ON”.
BATTERY VOLTAGE
(11 - 14V)
MBIB0114E
MBIB1001E
Voltage: Battery voltage
MBIB0191E
FUEL PUMP CIRCUIT
EC-533
[QG (WITH EURO-OBD)]
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3.
DETECT MALFUNCTIONING PART
Check the following.
●
Fuse block (J/B) connector B1
●
10A fuse
●
15A fuse
●
Harness for open or short between fuel pump relay and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK FUEL PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect fuel level sensor unit and fuel pump harness con-
nector.
3.
Check harness continuity between fuel pump relay terminal 3
and fuel level sensor unit and fuel pump terminal 5, fuel level
sensor unit and fuel pump terminal 3 and body ground.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors B36, D81
●
Harness for open or short between fuel level sensor unit and fuel pump and fuel pump relay
●
Harness for open or short between fuel level sensor unit and fuel pump and body ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK FUEL PUMP RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between ECM terminal 113 and fuel pump relay terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M12, B5 (LHD models)
●
Harness connectors M65, B42 (RHD models)
●
Harness for open or short between ECM and fuel pump relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
Continuity should exist.
MBIB0115E
Continuity should exist.
EC-534
[QG (WITH EURO-OBD)]
FUEL PUMP CIRCUIT
8.
CHECK FUEL PUMP RELAY
Refer to
EC-534, "Component Inspection"
.
OK or NG
OK
>> GO TO 9.
NG
>> Replace fuel pump relay.
9.
CHECK FUEL PUMP
Refer to
EC-534, "Component Inspection"
.
OK or NG
OK
>> GO TO 10.
NG
>> Replace fuel pump.
10.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS00QTM
FUEL PUMP RELAY
Check continuity between terminals 3 and 4, 3 and 5 under the fol-
lowing conditions.
FUEL PUMP
1.
Disconnect fuel level sensor unit and fuel pump harness connector.
2.
Check resistance between fuel level sensor unit and fuel pump
terminals 3 and 5.
Removal and Installation
EBS00QTN
FUEL PUMP
Refer to “Fuel Pump, Fuel Level Sensor Unit and Fuel Filter”, FE-9.
Conditions
Terminals
Continuity
12V direct current supply
between terminals 1 and 2
3 and 4
No
3 and 5
Yes
No current supply
3 and 4
Yes
3 and 5
No
MBIB0056E
Resistance: Approximately 1.0
Ω
[at 25
°
C (77
°
F)]
PBIB0658E
REFRIGERANT PRESSURE SENSOR
EC-535
[QG (WITH EURO-OBD)]
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REFRIGERANT PRESSURE SENSOR
PFP:92136
Component Description
EBS00QTO
The refrigerant pressure sensor is installed at the liquid tank of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
MBIB0116E
SEF099X
EC-536
[QG (WITH EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
Wiring Diagram
EBS00QTP
YEC476A
REFRIGERANT PRESSURE SENSOR
EC-537
[QG (WITH EURO-OBD)]
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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.
Diagnostic Procedure
EBS00QTQ
1.
CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Turn A/C switch and blower switch “ON”.
3.
Check voltage between ECM terminal 69 and ground with CON-
SULT-II or tester.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
46
R
Sensor power supply
(Refrigerant pressure sensor)
[Ignition switch “ON”]
Approximately 5V
57
B
Sensors' ground
(Power steering pressure
sensor/Refrigerant pressure
sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
69
L
Refrigerant pressure sensor
[Engine is running]
●
Warm-up condition
●
Both A/C switch and blower switch are “ON”.
(Compressor operates.)
1.0 - 4.0V
Voltage: 1.0 - 4.0V
MBIB0035E
EC-538
[QG (WITH EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
2.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Turn A/C switch and blower switch “OFF”.
2.
Stop engine.
3.
Disconnect refrigerant pressure sensor harness connector.
4.
Turn ignition switch “ON”.
5.
Check voltage between refrigerant pressure sensor terminal 3
and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 57 and refrigerant pressure sensor terminal 1.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 69 and refrigerant pressure sensor terminal 2.
Refer to Wiring Diagram.
2.
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.
MBIB0116E
Voltage: Approximately 5V
SEF479Y
Continuity should exist.
Continuity should exist.
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