LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Engine Controls - Self-Diagnostics - 1.8L - XE, GXE) >> Diagnostic Tests >> DTC P0335: Crankshaft Position Sensor (OBD) Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit wiring diagram, see Fig 1 . For connector identification and locations, see CONNECTOR IDENTIFICATION  .

  1. Retighten Ground Screws

    Turn ignition off. Loosen and retighten engine ground screws. See Figure . Go to next step.

  2. Check Power Supply

    Disconnect CKP sensor and ECM harness connectors. See Figure and Fig 2 . Turn ignition on. Measure voltage between ground and CKP sensor harness connector terminal No. 3. See Fig 1 . If battery voltage exists, go to next step. If battery voltage does not exists, repair open or short between CKP sensor and ECM relay. Perform DTC CONFIRMATION TEST  to verify repair.

  3. Check Input Signal Circuit

    Turn ignition off. Check continuity between CKP sensor harness connector terminal No. 2 and ECM harness connector terminal No. 75. See Fig 1 . Continuity should exist. Also, check harness for short to ground and short to power. If problem is found, repair as necessary. Perform DTC CONFIRMATION TEST  to verify repair. If problem is not found, go to next step.

  4. Check Ground Circuit

    Reconnect ECM harness connector. Check continuity between engine ground and CKP sensor harness connector terminal No. 1. Continuity should exist. Also, check harness for short to power. If problem is found, repair as necessary. Perform DTC CONFIRMATION TEST  to verify repair. If problem is not found, go to next step.

  5. Check CKP Sensor

    Remove CKP sensor. Visually inspect CKP sensor for chipping. Measure resistance between CKP sensor terminals as shown in illustration. See Fig 3 . If CKP sensor is okay, go to next step. If CKP sensor is not okay, replace CKP sensor. Perform DTC CONFIRMATION TEST  to verify repair.

  6. Check Signal Plate Teeth

    Visually check for chipping signal plate teeth. If signal plate is okay, go to next step. If signal plate is not okay, replace signal plate. Perform DTC CONFIRMATION TEST  to verify repair.

  7. Check For Intermittent

    Check for intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. Perform DTC CONFIRMATION TEST  to verify repair.
Fig 1: CKP Sensor Wiring Diagram
G00164629Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Locating CKP Sensor
G00014354Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Testing CKP Sensor
G00164630Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals