2001 NISSAN PICK-UP sensor

Wiring DiagramNEEC0331
GEC236A
DTC P1336 CKP SENSOR (OBD)KA24DE (EURO OBD)
Wiring Diagram
EC-3351

Diagnostic ProcedureNEEC0332
1 RETIGHTEN GROUND SCREWS
1. Turn ignition switch OFF.
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.
SEF335V
2. Check continuity between ECM terminal 47 and 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 following.
+Harness connectors E205, E33
+Harness connectors E101, M5
+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 crankshaft position sensor (OBD) terminal 2 and engine ground. Refer to the 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.
+Harness connectors E205, E33
+Harness connectors E101, M5
+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.
DTC P1336 CKP SENSOR (OBD)KA24DE (EURO OBD)
Diagnostic Procedure
EC-3352

6 CHECK SHIELD CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect harness connectors E205, E33.
3. Check harness continuity between harness connector E33 terminal 5 and ground. Refer to wiring diagram.
Continuity should exist
4. Also check harness for short to power.
5. Then reconnect harness connectors.
OK or NG
OK©GO TO 8.
NG©GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E101, M5
+Joint connector-3 (Refer to ªHARNESS LAYOUTº, EL section.)
+Harness for open or short between harness connector E33 and engine ground
©Repair open circuit or short to power in harness or connectors.
8 CHECK IMPROPER INSTALLATION
Loosen and retighten the fixing bolt of the crankshaft position sensor (OBD). Then retest.
Trouble is not fixed.©GO TO 9.
DTC P1336 CKP SENSOR (OBD)KA24DE (EURO OBD)
Diagnostic Procedure
EC-3353

9 CHECK CRANKSHAFT POSITION SENSOR (OBD)
1. Disconnect crankshaft position sensor (OBD) harness connector.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
SEF960N
5. Check resistance as shown in the figure.
SEF231W
Resistance: Approximately 512 - 632W[at 20ÉC (68ÉF)]
OK or NG
OK©GO TO 10.
NG©Replace crankshaft position sensor (OBD).
10 CHECK GEAR TOOTH
Visually check for chipping flywheel or drive plate gear tooth (cog).
OK or NG
OK©GO TO 11.
NG©Replace the flywheel.
11 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3123.
©INSPECTION END
DTC P1336 CKP SENSOR (OBD)KA24DE (EURO OBD)
Diagnostic Procedure
EC-3354

9 CHECK POWER TRANSISTOR
1. Disconnect camshaft position sensor & power transistor harness connector and ignition coil harness connector.
SEC276D
2. Check resistance between camshaft position sensor & power transistor and ignition coil terminals as follows. Refer to
wiring diagram.
MTBL1309
OK or NG
OK©GO TO 10.
NG©Replace distributor assembly.
10 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3123.
©INSPECTION END
IGNITION SIGNALKA24DE (EURO OBD)
Diagnostic Procedure
EC-3368

System DescriptionNEEC0444
Sensor Input Signal to ECMECM func-
tionActuator
Camshaft position sensor Engine speed
Fuel pump
controlFuel pump relay
Ignition switch Start signal
The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a 180É signal from the camshaft position sensor, it knows that the engine is
rotating, and causes the pump to perform. If the 180É signal is not received when the ignition switch is on, the
engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The
ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the
fuel pump.
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 5 seconds.
Engine running and cranking Operates.
Except as shown aboveStops.
SFE425A
Component DescriptionNEEC0501The fuel pump with a fuel damper is an in-tank type (the pump and
damper are located in the fuel tank).
CONSULT-II Reference Value in Data Monitor
Mode
NEEC0445
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY+Ignition switch is turned to ON (Operates for 5 seconds)
+Engine running and crankingON
+Except as shown above OFF
FUEL PUMPKA24DE (EURO OBD)
System Description
EC-3378

3 DETECT MALFUNCTIONING PART
Check the following.
+15A fuse
+Harness for open or short between fuse and fuel pump relay
©Repair harness or connectors.
4 CHECK FUEL PUMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel level sensor unit and fuel pump harness connector.
SEF334VA
3. Check harness continuity between fuel pump terminal 4 and body ground, fuel pump terminal 2 and fuel pump relay
terminal 3. 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.
+Harness connectors M121, C9
+Harness for open or short between fuel pump and body ground
+Harness for open or short between fuel pump and fuel pump relay
©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK OUTPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 11 or (14)* and fuel pump relay terminal 1. Refer to wiring diagram.
*: Model with NATS (Nissan Anti-Theft System)
Continuity should exist.
3. 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.
FUEL PUMPKA24DE (EURO OBD)
Diagnostic Procedure
EC-3382

7 CHECK FUEL PUMP RELAY
With CONSULT-II
1. Reconnect fuel pump relay, fuel level sensor unit and fuel pump harness connector and ECM harness connector.
2. Turn ignition switch ON.
3. Turn fuel pump relay ªONº and ªOFFº in ªACTIVE TESTº mode with CONSULT-II and check operating sound.
SEF724Z
Without CONSULT-II
Check continuity between terminals 3 and 5.
PBIB0098E
MTBL0306
OK or NG
OK©GO TO 8.
NG©Replace fuel pump relay.
FUEL PUMPKA24DE (EURO OBD)
Diagnostic Procedure
EC-3383