Nissan Primera P11. Instruction — part 193
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, 6 and 7.
SEF296X
OK or NG
OK
©
GO TO 18.
NG
©
Replace ECM relay.
11
CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser terminal 2 and engine ground. 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 12.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
12
CHECK CONDENSER
Refer to “Component Inspection”, EC-QG-331.
SEF369X
OK or NG
OK
©
GO TO 13.
NG
©
Replace condenser.
IGNITION SIGNAL
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-329
13
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect 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.
NEF237A
Voltage: Battery voltage
OK or NG
OK
©
GO TO 15.
NG
©
GO TO 14.
14
DETECT MALFUNCTIONING PART
Check the harness for open or short ignition coil harness connector F73.
©
Repair or replace harness or connectors.
15
CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and engine ground. 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 16.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
16
CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 35, 36, 37, 38 and ignition coil terminal 3. 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 17.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
17
CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to “Component Inspection”, EC-QG-331331.
OK or NG
OK
©
GO TO 18.
NG
©
Replace ignition coil with power transistor.
IGNITION SIGNAL
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-330
18
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102.
©
INSPECTION END
Component Inspection
NCEC0547
IGNITION COIL WITH POWER TRANSISTOR
NCEC0547S01
1.
Disconnect ignition coil with power transistor harness connec-
tor.
2.
Check ignition coil with power transistor for resistance as show
in the figure.
Terminal No. (Polarity)
Resistance
Ω
[at 25°C (77°F)]
3 (+) - 2 (−)
Except 0 or
∞
1 (+) - 3 (−)
Except 0
1 (+) - 2 (−)
If NG, replace ignition coil with power transistor assembly.
CONDENSER
NCEC0547S02
1.
Disconnect condenser harness connector.
2.
Check condenser continuity between terminals 1 and 2.
Resistance: Above 1 M
Ω
at 25°C (77°F)
SEF371Q
SEF059X
IGNITION SIGNAL
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-331
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0441
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
START SIGNAL
I
Ignition switch: ON
,
START
,
ON
OFF
,
ON
,
OFF
ECM Terminals and Reference Value
NCEC0442
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)
41
B/Y
Start signal
[Ignition switch “ON”]
Approximately 0V
[Ignition switch “START”]
9 - 12V
START SIGNAL
QG16
I
18DE
CONSULT-II Reference Value in Data Monitor Mode
EC-332
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