NISSAN ALMERA N16 2003 Electronic Repair Manual

2) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to “START” for at
least 2 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-187.
Diagnostic ProcedureNJEC0726
1 INSPECTION START
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform “DTC Confirmation Procedure”, EC-186, again.
5. Is the DTC P1690 displayed again?
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory.
3. Perform “DTC Confirmation Procedure”, EC-186, again.
4. Perform “Diagnostic Test Mode II (Self-diagnostic results)”.
5. Is the DTC 0705 displayed again?
YesorNo
Yes Replace electronic control fuel injection pump.
NoINSPECTION END
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DTC P1690 P5·PUMP C/MODULEYD
DTC Confirmation Procedure (Cont’d)
EC-187

DescriptionNJEC0760SYSTEM DESCRIPTIONNJEC0760S01
Sensor Input Signal to ECMECM
Func-
tionActuator
Crankshaft position sensor
(TDC)Engine speed
Glow
controlGlow lamp,
Glow relay
"
Glow plugs Engine coolant tempera-
ture sensorEngine coolant tem-
perature
When engine coolant temperature is more than approximately
75°C (167°F), the glow relay turns off.
When coolant temperature is lower than approximately 75°C
(167°F):
Ignition switch ON
After ignition switch has turned to ON, the glow relay turns ON
for a certain period of time in relation to engine coolant
temperature, allowing current to flow through glow plug.
Cranking
The glow relay turns ON, allowing current to flow through glow
plug.
Starting
After engine has started, current continues to flow through
glow plug (after-glow mode) for a certain period in relation to
engine coolant temperature.
The glow indicator lamp turns ON for a certain period of time in
relation to engine cooalnt temperature at the time glow relay is
turned ON.
SEF376Y
COMPONENT DESCRIPTIONNJEC0760S02Glow PlugNJEC0760S0201The glow plug is provided with a ceramic heating element to obtain
a high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via
the glow relay.
GLOW CONTROL SYSTEMYD
Description
EC-188

ECM Terminals and Reference ValueNJEC0761Specification 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
COLORITEM CONDITION DATA (DC Voltage)
214 W/B Glow relay Refer to “SYSTEM DESCRIPTION”, EC-188.
508 OR Glow indicator lamp[Ignition switch “ON”]
Glow indicator lamp is “ON”Approximately 1V
[Ignition switch “ON”]
Glow indicator lamp is “OFF”BATTERY VOLTAGE
(11 - 14V)
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GLOW CONTROL SYSTEMYD
ECM Terminals and Reference Value
EC-189

Wiring DiagramNJEC0762
YEC328A
GLOW CONTROL SYSTEMYD
Wiring Diagram
EC-190

Diagnostic ProcedureNJEC0763
1 INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OK GO TO 2.
NG Correct.
2 CHECK INSTALLATION
Check that glow plug nut and all glow plug connecting plate nuts are installed properly.
SEF392YA
OK or NG
OK (With CONSULT-II) GO TO 3.
OK (Without CONSULT-
II)GO TO 4.
NG Install properly.
3 CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “COOLAN TEMP/S” in “DATA MONITOR” mode with CONSULT-II.
3. Confirm that “COOLAN TEMP/S” indicates below 75°C (167°F). If it indicates above 75°C (167°F), cool down engine.
SEF013Y
4. Turn ignition switch “OFF”, wait at least 5 seconds and then turn “ON”.
5. Make sure that glow indicator lamp is turned “ON” for 1.5 seconds or more after turning ignition switch “ON”, and then
turned “OFF”.
OK or NG
OK GO TO 5.
NG GO TO 6.
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GLOW CONTROL SYSTEMYD
Diagnostic Procedure
EC-191

4 CHECK GLOW INDICATOR LAMP OPERATION
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Confirm that the voltage between ECM terminal 347 (Engine coolant temperature sensor signal) and ground is above
1.36V. If it is below 1.36V, cool down engine.
SEF442Z
3. Turn ignition switch “OFF”, wait at least 5 seconds and then turn “ON”.
4. Make sure that glow indicator lamp is turned “ON” for 1.5 seconds or more after turning ignition switch “ON”, and then
turned “OFF”.
OK or NG
OK GO TO 5.
NG GO TO 6.
5 CHECK GLOW CONTROL SYSTEM OVERALL FUNCTION
1. Turn ignition switch “OFF”.
2. Set voltmeter probe between glow plug and engine body.
3. Turn ignition switch “ON”.
4. Check the voltage between glow plug and engine body under the following conditions.
SEF431Y
OK or NG
OKINSPECTION END
NG GO TO 11.
GLOW CONTROL SYSTEMYD
Diagnostic Procedure (Cont’d)
EC-192

6 CHECK GLOW INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector M171.
3. Turn ignition switch “ON”.
4. Check voltage between combination meter terminal 30 and ground with CONSULT-II or tester.
YEC396A
OK or NG
OK GO TO 8.
NG GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
1. Fuse block (J/B) connector M1
2. 10A fuse
3. Harness for open or short between combination meter and fuse
Repair open circuit or short to ground or short to power in harness or connectors.
8 CHECK GLOW INDICATOR LAMP OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Disconnect combination meter harness connector M171.
4. Check harness continuity between ECM terminal 508 and combination meter terminal 47. 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 10.
NG GO TO 9.
9 DETECT MALFUNCTIONING PART
Check the following.
1. Harness connectors M63, F102
2. Harness for open or short between combination meter and ECM
Repair open circuit or short to ground or short to power in harness or connectors.
10 CHECK COMBINATION METER
Check combination meter and glow indicator lamp. Refer to EL-110, “Meter and Gauges”.
OK or NG
OK GO TO 18.
NG Repair or replace combination meter or glow indicator lamp.
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GLOW CONTROL SYSTEMYD
Diagnostic Procedure (Cont’d)
EC-193

11 CHECK GLOW RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect glow relay.
SEF391Y
3. Check voltage between glow relay terminals 1, 5 and ground with CONSULT-II or tester.
SEF420Y
OK or NG
OK GO TO 13.
NG GO TO 12.
12 DETECT MALFUNCTIONING PART
Check the following.
60A fusible link
Harness for open or short between glow relay and battery
Repair harness or connectors.
13 CHECK GLOW RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 214 and glow 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 15.
NG GO TO 14.
14 DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E75, F36
Harness for open or short between glow relay and ECM
Repair open circuit or short to ground or short to power in harness or connectors.
GLOW CONTROL SYSTEMYD
Diagnostic Procedure (Cont’d)
EC-194

15 CHECK HARNESS CONTINUITY BETWEEN GLOW RELAY AND GLOW PLUG FOR OPEN AND SHORT
1. Disconnect glow plug harness connector.
2. Check harness continuity between glow relay terminal 3 and glow plug harness connector. 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 GLOW RELAY
Check continuity between glow relay terminals 3 and 5 under the following conditions.
SEF433Y
OK or NG
OK GO TO 17.
NG Replace glow relay.
17 CHECK GLOW PLUG
1. Remove glow plug connecting plate.
2. Check glow plug resistance.
SEF434Y
NOTE:
Do not bump glow plug heating element. If it is bumped, replace glow plug withanewone.
If glow plug is dropped from a height of 10 cm (3.94 in) or higher, replace with a new one.
If glow plug installation hole is contaminated with carbon, remove it witha reamer or suitable tool.
Hand-tighten glow plug by turning it two or three times, then tighten usinga tool to specified torque.
: 17.7 - 22.5 N·m (1.8 - 2.3 kg-m, 13 - 16 ft-lb)
OK or NG
OK GO TO 18.
NG Replace glow plug.
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GLOW CONTROL SYSTEMYD
Diagnostic Procedure (Cont’d)
EC-195

18 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
GLOW CONTROL SYSTEMYD
Diagnostic Procedure (Cont’d)
EC-196