Nissan Maxima Service and Repair Manual: P0335 CKP sensor (POS)

Nissan Maxima Service and Repair Manual / Engine / Engine control system / DTC/circuit diagnosis / P0335 CKP sensor (POS)

Description

Nissan Maxima. Description

The crankshaft position sensor (POS) is located on the oil pan facing the gear teeth (cogs) of the signal plate. It detects the fluctuation of the engine revolution.

The sensor consists of a permanent magnet and Hall IC.

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.

ECM receives the signals as shown in the figure.

Nissan Maxima. Description

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V with ignition switch ON.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and let it idle for at least 5 seconds.

    If engine does not start, crank engine for at least 2 seconds.

  2. Check 1st trip DTC.

Diagnosis Procedure

1.CHECK GROUND CONNECTION

  1. Turn ignition switch OFF.
  2. Check ground connection E9.

2.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-I

Nissan Maxima. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-I

  1. Disconnect crankshaft position (CKP) sensor (POS) harness connector.
  2. Turn ignition switch ON.
  3. Check the voltage between CKP sensor (POS) harness connector and ground.

Nissan Maxima. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-I

3.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-II

  1. Turn ignition switch ON.
  2. Disconnect ECM harness connector.
  3. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.

Nissan Maxima. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-II

4.CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

Nissan Maxima. CHECK SENSOR POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK SENSOR POWER SUPPLY CIRCUIT

5.CHECK COMPONENTS

Check the following.

  • EVAP control system pressure sensor (Refer to EC-346, "Component Inspection".)
  • Refrigerant pressure sensor

6.CHECK APP SENSOR

7.REPLACE ACCELERATOR PEDAL ASSEMBLY

  1. Replace accelerator pedal assembly

8.CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.
  4. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT

9.CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.
  2. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

10.CHECK CRANKSHAFT POSITION SENSOR (POS)

11.CHECK GEAR TOOTH

Visually check for chipping drive plate gear tooth.

12.CHECK INTERMITTENT INCIDENT

Component Inspection

1.CHECK CRANKSHAFT POSITION SENSOR (POS)-I

  1. Loosen the fixing bolt of the sensor.
  2. Disconnect crankshaft position sensor (POS) harness connector.
  3. Remove the sensor.
  4. Visually check the sensor for chipping.

Nissan Maxima. CHECK CRANKSHAFT POSITION SENSOR (POS)-I

2.CHECK CRANKSHAFT POSITION SENSOR (POS)-II

Nissan Maxima. CHECK CRANKSHAFT POSITION SENSOR (POS)-II

Check resistance crankshaft position sensor (POS) terminals as per the following.

Nissan Maxima. .CHECK CRANKSHAFT POSITION SENSOR (POS)-II

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