Page 1105 of 2267
![NISSAN PRIMERA 1999 Electronic Repair Manual Component InspectionNCEC0439INJECTORNCEC0439S011. Disconnect injector harness connector.
2. Check resistance between terminals as shown in the figure.
Resistance: 13.5 - 17.5W[at 25ÉC (77ÉF)]
If NG, NISSAN PRIMERA 1999 Electronic Repair Manual Component InspectionNCEC0439INJECTORNCEC0439S011. Disconnect injector harness connector.
2. Check resistance between terminals as shown in the figure.
Resistance: 13.5 - 17.5W[at 25ÉC (77ÉF)]
If NG,](/manual-img/5/57377/w960_57377-1104.png)
Component InspectionNCEC0439INJECTORNCEC0439S011. Disconnect injector harness connector.
2. Check resistance between terminals as shown in the figure.
Resistance: 13.5 - 17.5W[at 25ÉC (77ÉF)]
If NG, replace injector.
3 DETECT MALFUNCTIONING PART
Check the following.
I10A fuse
IHarness connectors F13, F60
IHarness connectors M50, F104 (CVT: M81, F115)
IHarness for open or short between injector and fuse
©Repair harness or connectors.
4 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector harness connector terminal 1 and ECM terminals 101, 103, 105, 107.
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 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F13, F60
IHarness for open or short between ECM and injector
©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK INJECTOR
Refer to ªComponent Inspectionº, EC-SR-305.
OK or NG
OK©GO TO 7.
NG©Replace injector.
7 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
©INSPECTION END
SEF139X
INJECTORSR20DE
Component Inspection
EC-305
Page 1106 of 2267

Component DescriptionNCEC0566IGNITION COIL & POWER TRANSISTOR (BUILT INTO
DISTRIBUTOR)
NCEC0566S01The ignition coil is built into distributor. The ignition signal from the
ECM is sent to the power transistor. The power transistor switches
on and off the ignition coil primary circuit. As the primary circuit is
turned on and off, the proper high voltage is induced in the coil
secondary circuit.
The distributor is not repairable and must be replaced as an
assembly except distributor cap and rotor head.
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0567
MONITOR ITEM CONDITION SPECIFICATION
IGN TIMINGIEngine: After warming up
IAir conditioner switch: OFF
IShift lever: ªNº
INo-loadIdle 15É BTDC
2,000 rpm Approx. 40É BTDC
ECM Terminals and Reference ValueNCEC0568Specification data are reference values and are measured between each terminal and 43 (ECM ground).
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
35 W/L Ignition signal[Engine is running]
IWarm-up condition
IIdle speedApproximately 0.3V
SEF996V
[Engine is running]
IEngine speed is 2,000 rpmApproximately 0.8V
SEF997V
SEF211XDistributor Camshaft position sensor
and power transistor
harness connectorIgnition coil
harness connector
IGNITION SIGNALSR20DE
Component Description
EC-306
Page 1107 of 2267
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
36*1 G Ignition check[Engine is running]
IWarm-up condition
IIdle speedApproximately 13V
SEF998V
[Engine is running]
IEngine speed is 2,000 rpmApproximately 12V
SEF999V
*1: If so equipped
IGNITION SIGNALSR20DE
ECM Terminals and Reference Value (Cont'd)
EC-307
Page 1108 of 2267
Wiring DiagramNCEC0571
YEC852
ECM
RELAY
DISTRIBUTOR Refer to
EL-POWER. BATTERY
RESISTOR
SPARK
PLUGIGNITION
COILCONDENSER
POWER
TRANSISTOR
IGNITION SIGNALSR20DE
Wiring Diagram
EC-308
Page 1109 of 2267

Diagnostic ProcedureNCEC0572
1 CHECK ENGINE START
Turn ignition switch ªOFFº, and restart engine.
Is engine running?
YesorNo
Ye s©GO TO 7.
No©GO TO 2.
2 CHECK POWER SUPPLY
1. Turn ignition switch ªOFFº.
2. Disconnect ignition coil harness connector.
SEF211X3. Turn ignition switch ªONº.
4. Check voltage between terminal 8 and ground with CONSULT-II or tester.
SEF257WVoltage: Battery voltage
OK or NG
OK©GO TO 4.
NG©GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E90, F73
IHarness for open or short between ignition coil and ignition switch
©Repair harness or connectors.
4 CHECK GROUND CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect power transistor harness connector.
3. Check harness continuity between terminal 5 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.
Ignition coil
harness connector
Distributor Camshaft position sensor
and power transistor
harness connector
IGNITION SIGNALSR20DE
Diagnostic Procedure
EC-309
Page 1110 of 2267

Component InspectionNCEC0573IGNITION COILNCEC0573S011. Disconnect distributor harness connector.
2. Check continuity between terminal 7 and 8 on distributor.
Continuity should exist.
If NG, replace distributor.
3. For checking secondary coil, remove distributor cap.
4. Check resistance between ignition coil harness connector ter-
minal 7 and coil tower metal tip 9 (secondary terminal) on the
distributor head.
Terminal Resistance [at 25ÉC (77ÉF)]
7 - 8 (Primary coil)Approximately 0.5 - 1.0W
8 - secondary terminal on distributor
head (Secondary coil)Approximately 25 kW
If NG, replace distributor.
5 CHECK INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 35 and power transistor terminal 6.
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 6.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK IGNITION COIL, POWER TRANSISTOR
Refer to ªComponent Inspectionº, EC-SR-310.
OK or NG
OK©GO TO 7.
NG©Replace malfunctioning component(s).
7 CHECK INPUT SIGNAL CIRCUIT (If so equipped)
1. Stop engine.
2. Disconnect ignition coil harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between ignition coil terminal 7 and ECM terminal 36.
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 8.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
8 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
©INSPECTION END
SEF237X Coil tower metal tip
SEF238X Coil tower metal tip
IGNITION SIGNALSR20DE
Component Inspection
EC-310
Page 1111 of 2267
POWER TRANSISTORNCEC0573S021. Disconnect power transistor harness connector.
2. Check power transistor resistance between terminals 5 and 7.
Terminals Resistance Result
5 and 7Except 0WOK
0WNG
If NG, replace distributor.
SEF239X
Distributor
IGNITION SIGNALSR20DE
Component Inspection (Cont'd)
EC-311
Page 1112 of 2267
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0441Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
START SIGNALIIgnition switch: ON,START,ON OFF,ON,OFF
ECM Terminals and Reference ValueNCEC0442Specification data are reference values and are measured between each terminal and 48 (ECM ground).
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
41 B/Y Start signal[Ignition switch ªONº]Approximately 0V
[Ignition switch ªSTARTº]9 - 12V
START SIGNALSR20DE
CONSULT-II Reference Value in Data Monitor Mode
EC-312