NISSAN ALMERA TINO 2001 Service Repair Manual

4 CHECK GROUND CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect camshaft position sensor harness connector.
3. Check harness continuity between CMPS terminal 5 and engine ground.
Refer to ªWiring Diagramº, EC-903.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK©GO TO 5.
NG©Repair open circuit or short to power in harness or connectors.
5 CHECK INPUT SIGNAL CIRCUIT-I
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 35 and CMPS terminal 6.
Refer to ªWiring Diagramº, EC-903.
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-907.
OK or NG
OK©GO TO 7.
NG©Replace malfunctioning component(s).
7 CHECK INPUT SIGNAL CIRCUIT-II
1. Stop engine.
2. Disconnect ignition coil harness connector and ECM harness connector.
SEF211X
3. Check harness continuity between ignition coil terminal 7 and ECM terminal 36.
Refer to ªWiring Diagramº, EC-903.
Continuity should exist.
4. 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.
DTC P1320 IGNITION SIGNALSR20DE
Diagnostic Procedure (Cont'd)
EC-906

8 CHECK RESISTOR
Refer to ªComponent Inspectionº EC-908.
OK or NG
OK©GO TO 9.
NG©Replace distributor cap.
9 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-670.
©INSPECTION END
SEF237X
SEF238X
Component InspectionNLEC1916IGNITION COILNLEC1916S011. Disconnect ignition coil harness connector.
2. Check resistance as shown in the figure.
3. For checking secondary coil, remove distributor cap.
4. Check resistance between ignition coil harness connector ter-
minal 8 and coil tower metal tip 9 (secondary terminal) on the
distributor head.
Terminal Resistance [at 25ÉC (77ÉF)]
7 - 8 (Primary coil) Approximately 2.2W
8 - secondary terminal on distributor
head (Secondary coil)Approximately 17 kW
If NG, replace distributor.
SEF943XA
POWER TRANSISTORNLEC1916S021. Disconnect power transistor harness connector and ignition
coil harness connector.
2. Check power transistor resistance between terminals 5 and 7.
Terminals Resistance Result
5 and 7Except 0WOK
0WNG
If NG, replace distributor.
DTC P1320 IGNITION SIGNALSR20DE
Diagnostic Procedure (Cont'd)
EC-907

SEF944X
RESISTORNLEC1916S031. Disconnect resistor harness connector.
2. Check resistance as shown in the figure.
Resistance: Approximately 5 kW[at 25ÉC (77ÉF)]
If NG, replace distributor cap.
DTC P1320 IGNITION SIGNALSR20DE
Component Inspection (Cont'd)
EC-908

SEF956N
SEF777Z
Component DescriptionNLEC1917The crankshaft position sensor (OBD) is located on the transmis-
sion housing facing the gear teeth (cogs) of the flywheel or drive
plate. It detects the fluctuation of the engine revolution.
The sensor consists of a permanent magnet, core and coil.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
This sensor is not used to control the engine system.
It is used only for the on board diagnosis.
ECM Terminals and Reference ValueNLEC1918Specification 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 damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (AC Voltage)
65 WCrankshaft position
sensor (OBD)[Engine is running]
+Warm-up condition
+Idle speedApproximately 1.3V
SEF814Z
[Engine is running]
+Engine speed is 2,000 rpmApproximately 2.0V
SEF815Z
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
Component Description
EC-909

On Board Diagnosis LogicNLEC1919
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P1336+A chipping of the flywheel or drive plate gear tooth (cog)
is detected by the ECM.+Harness or connectors
+Crankshaft position sensor (OBD)
+Drive plate
SEF058Y
DTC Confirmation ProcedureNLEC1920NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 10 seconds
before conducting the next test.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
with CONSULT-II.
2) Start engine and run it for at least 4 minutes at idle speed.
3) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-913.
With GST
Follow the procedure ªWith CONSULT-IIº above.
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
On Board Diagnosis Logic
EC-910

Wiring DiagramNLEC1921MODELS WITH ECM IN ENGINE COMPARTMENTNLEC1921S01
YEC698
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
Wiring Diagram
EC-911

MODELS WITH ECM IN CABINNLEC1921S02
YEC921
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
Wiring Diagram (Cont'd)
EC-912

Diagnostic ProcedureNLEC1922
1 RETIGHTEN GROUND SCREWS
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
©GO TO 2.
2 CHECK INPUT SIGNAL CIRCUIT
1. Disconnect crankshaft position sensor (OBD) and ECM harness connectors.
SEF777Z
2. Check continuity between ECM terminal 65 and CKPS (OBD) terminal 1.
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 4.
NG©GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the harness for open or short between crankshaft position sensor (OBD) and ECM
©Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK GROUND CIRCUIT
1. Reconnect ECM harness connectors.
2. Check harness continuity between CKPS (OBD) terminal 2 and engine ground.
Refer to wiring diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Joint connector-1 (where fitted)
+Joint connector F46 (where fitted)
+Harness for open or short between crankshaft position sensor (OBD) and ECM
+Harness for open or short between crankshaft position sensor (OBD) and TCM (Transmission control module)
©Repair open circuit or short to power in harness or connectors.
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
Diagnostic Procedure
EC-913

6 CHECK IMPROPER INSTALLATION
Loosen and retighten the fixing bolt of the crankshaft position sensor (OBD). Then retest.
Trouble is not fixed.©GO TO 7.
7 CHECK CRANKSHAFT POSITION SENSOR (OBD)
Refer to ªComponent Inspectionº, EC-914.
OK or NG
OK©GO TO 8.
NG©Replace crankshaft position sensor (OBD).
8 CHECK GEAR TOOTH
Visually check for chipping drive plate gear tooth (cog).
OK or NG
OK©GO TO 9.
NG©Replace the drive plate.
9 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-670.
©INSPECTION END
SEF960N
Component InspectionNLEC1923CRANKSHAFT POSITION SENSOR (OBD)NLEC1923S011. Disconnect crankshaft position sensor (OBD) harness connec-
tor.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
SEF134W
5. Check resistance as shown in the figure.
Resistance: 166 - 204W[at 20ÉC (68ÉF)]
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS) (OBD)
(COG)
SR20DE
Diagnostic Procedure (Cont'd)
EC-914

SEF599K
Component DescriptionNLEC1627The EGR temperature sensor detects temperature changes in the
EGR passageway. When the EGR volume control valve opens, hot
exhaust gases flow, and the temperature in the passageway
changes. The EGR temperature sensor is a thermistor that modi-
fies a voltage signal sent from the ECM. This modified signal then
returns to the ECM as an input signal. As the temperature
increases, EGR temperature sensor resistance decreases. This
sensor is not used to control the engine system.
It is used only for the on board diagnosis.
SEF068X

EGR temperature
ÉC (ÉF)Voltage*
VResistance
MW
0 (32) 4.56 0.73 - 0.89
50 (122) 2.25 0.074 - 0.082
100 (212) 0.59 0.012 - 0.014
*: These data are reference values and are measured between ECM terminal 72
(EGR temperature sensor) and ground.
When EGR system is operating.
Voltage: 0 - 1.5V
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
On Board Diagnosis LogicNLEC1628
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P1401 A) An excessively low voltage from the EGR tempera-
ture sensor is sent to ECM even when engine cool-
ant temperature is low.+Harness or connectors
(The EGR temperature sensor circuit is shorted.)
+EGR temperature sensor
+Malfunction of EGR function
B) An excessively high voltage from the EGR tempera-
ture sensor is sent to ECM even when engine cool-
ant temperature is high.+Harness or connectors
(The EGR temperature sensor circuit is open.)
+EGR temperature sensor
+Malfunction of EGR function
DTC Confirmation ProcedureNLEC1629Perform ªPROCEDURE FOR MALFUNCTION Aº first. If 1st trip
DTC cannot be confirmed, perform ªPROCEDURE FOR MAL-
FUNCTION Bº.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 10 seconds
before conducting the next test.
DTC P1401 EGR TEMPERATURE SENSOR (WHERE FITTED)SR20DE
Component Description
EC-915