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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Engine Controls Self-Diagnostics - Pathfinder & QX4) >> Diagnostic Tests >> DTC P0335: Crankshaft Position Sensor (Pos) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Nissan Pathfinder and 2002 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. Loosen and retighten engine ground bolts. See Figure . Go to next step.
  2. Disconnect Gray, 8-pin in-line harness connector E135. In-line harness connector is located below power steering reservoir. See Fig 1 . Turn ignition on. Measure voltage between ground and in-line harness connector E135 terminal No. 6 (Black/White wire). See Figure . Voltage should equal battery voltage. Also, check circuits for short to ground or short to voltage. If battery voltage exists, go to step  4 . If battery voltage does not exist, go to next step.
  3. Check following:
    • Check for poor, loose, corroded or damage to terminal connections in in-line harness connectors E132 and E135. See WIRING DIAGRAMS article.
    • Check for open or short in circuits between ECM and CKP sensor (POS).
    • Check for open or short in circuits between ECM relay and CKP sensor (POS).
    If problem is found, repair as necessary.
  4. Turn ignition off. Check continuity between engine ground and in-line harness connector E135 terminal No. 1 (Black wire). Continuity should exist. Also, check circuit for short to voltage. See WIRING DIAGRAMS article. If problem is found, go to next step. If no problem is found, leave harness connector disconnected and go to step  6 .
  5. Check following:
    • Check for poor, loose, corroded or damage to terminal connections in in-line harness connectors E132 and E135. See WIRING DIAGRAMS article.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors E116 and M114.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors M32 and F23.
    • Check for open in Black wire between ground and CKP sensor (POS) harness connector terminal No. 1.
    If problem is found, repair as necessary.
  6. Turn ignition off. Disconnect ECM 116-pin harness connector. ECM is located behind instrument panel lower cover. See Figure . Check continuity of White wire (changes to Yellow at ECM) between in-line harness connector E135 terminal No. 5 and ECM harness connector terminal No. 85. See Figure and Figure . Continuity should exist. Also check circuit for short to ground and short to voltage. If problem is found, go to next step. If no problem is found, connect ECM harness connector and go to step  8 .
  7. Check following:
    • Check for poor, loose, corroded or damage to terminal connections in in-line harness connectors E132 and E135. See WIRING DIAGRAMS article.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors E116 and M114.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors M32 and F23.
    • Check for open in circuits between ECM and CKP sensor (POS).
    If problem is found, repair as necessary.
  8. Disconnect CKP sensor (POS) 3-pin harness connector. Check continuity of specified circuits between CKP sensor (POS) and in-line harness connector E132. See CHECKING CKP SENSOR (POS) SUB-HARNESS CIRCUITS  table. See Figure and Fig 2 . Also, check harness for short to ground or short to power. If no problem is found, leave harness connector disconnected and go to next step. If problem is found, repair as necessary.
    CHECKING CKP SENSOR (POS) SUB-HARNESS CIRCUITS

    Crankshaft Position Sensor (POS) Harness Connector Terminal No. In-Line Harness Connector E132 Terminal No.
    1 1
    2 5
    3 6
  9. Remove CKP sensor (POS) retaining bolt. Remove CKP sensor (POS). Visually check CKP sensor for damage or chipping to sensor pick-up. If no problem is found, go to next step. If problem is found, replace CKP sensor.
  10. Reconnect all harness connectors. Turn ignition on. Backprobbing at ECM, measure voltage between ground and ECM terminal No. 85 (Yellow wire). While monitoring voltmeter, briefly touch CKP sensor core with a flat-bladed screwdriver. About 5 volts should exist when screwdriver is contacting sensor core. Voltage should drop to zero volts when screwdriver is quickly pulled away. There should be a steady 5 volts when screwdriver is slowly pulled away. If voltage is as specified, go to next step. If voltage is not as specified, replace CKP sensor (POS) and retest system.
  11. Turn ignition off. Disconnect connector E135. Check continuity between engine ground and connector E135 terminal No. 2. See Figure . Continuity should exist. Also check circuit for short to voltage. If problem is found, go to next step. If no problem is found, go to step  13 .
  12. Check following:
    • Check for poor, loose, corroded or damage to terminal connections in in-line harness connectors E132 and E135. See WIRING DIAGRAMS article.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors E116 and M114.
    • Check for poor, loose, corroded or damage to terminal connections in harness connectors M32 and F23.
    • Check for open in circuits between ground and in-line harness connector E135.
    If problem is found, repair as necessary.
  13. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
Fig 1: Locating In-Line Harness Connector E135
G00025061Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Crankshaft Position Sensor (POS) Harness Connector Terminals
G00154005Courtesy of NISSAN MOTOR CO., U.S.A.
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