Nissan Almera Tino V10. Instruction — part 513
EC-878
[QG (WITHOUT EURO-OBD)]
IGNITION SIGNAL
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
EBS00R2W
1.
CHECK ENGINE START
Turn ignition switch “OFF”, and restart engine.
Is engine running?
Yes or No
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No
>> GO TO 4.
2.
CHECK OVERALL FUNCTION
With CONSULT-II
1.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2.
Make sure that each circuit produces a momentary engine
speed drop.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 11.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
60
61
79
80
L/R
BR
GY/R
PU
Ignition signal No. 3
Ignition signal No. 1
Ignition signal No. 4
Ignition signal No. 2
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 0.1V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm.
0 - 0.2V
PBIB0521E
PBIB0522E
PBIB0133E
IGNITION SIGNAL
EC-879
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
3.
CHECK OVERALL FUNCTION
Without CONSULT-II
1.
Let engine idle.
2.
Read the voltage signal between ECM terminals 60, 61, 79, 80
and ground with an oscilloscope.
3.
Verify that the oscilloscope screen shows the signal wave as
shown below.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 11.
4.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch “ON”.
2.
Check voltage between ECM terminals 119, 120 and ground
with CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> Go to
EC-645, "POWER SUPPLY CIRCUIT FOR ECM"
.
5.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch “OFF”.
2.
Disconnect condenser harness connector.
3.
Turn ignition switch “ON”.
4.
Check voltage between condenser terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 11.
NG
>> GO TO 6.
MBIB0033E
PBIB0521E
Voltage: Battery voltage
MBIB0034E
Voltage: Battery voltage
PBIB0624E
EC-880
[QG (WITHOUT EURO-OBD)]
IGNITION SIGNAL
6.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM relay.
3.
Check harness continuity between ECM relay terminal 7 and
condenser terminal 1.
Refer to Wiring Diagram.
4.
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 M71, F45
●
Harness for open or short between condenser and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 9.
9.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E105, M10
●
15A 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.
10.
CHECK ECM RELAY
Refer to
EC-882, "Component Inspection"
.
OK or NG
OK
>> GO TO 17.
NG
>> Replace ECM relay.
Continuity should exist.
MBIB0999E
Voltage: Battery voltage
PBIB0625E
IGNITION SIGNAL
EC-881
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
11.
CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect condenser harness connector.
3.
Check harness continuity between condenser terminal 2 and ground.
Refer to Wiring diagram.
4.
Also check harness for short to power.
OK or NG
OK
>> GO TO 12.
NG
>> Repair open circuit or short to power in harness or connector.
12.
CHECK CONDENSER
Refer to
EC-882, "Component Inspection"
.
OK or NG
OK
>> GO TO 13.
NG
>> Replace condenser.
13.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1.
Turn ignition switch “OFF”.
2.
Reconnect all harness connectors disconnected.
3.
Disconnect ignition coil harness connector.
4.
Turn ignition switch “ON”.
5.
Check voltage between ignition coil terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 15.
NG
>> GO TO 14.
14.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M71, F45
●
Harness for open or short between ignition coil and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
Continuity should exist.
MBIB0111E
Voltage: Battery voltage
SEF107S
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