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Diagnostic Procedure (2.4L)

WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. 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 . Disconnect ECM harness connector. See Figure or Figure . Measure resistance between ground and ECM harness connector terminal No. 64 (White wire). See Figure . Resistance should be about 500-620 k/ohms at 77°F (25°C). If resistance is as specified, go to step  4 . If resistance is not as specified, go to next step.
  2. Disconnect knock sensor harness connector (connector F2). See Figure . Check continuity of White wire between knock sensor harness connector terminal No. 1 and ECM harness connector terminal No. 64. Also, check circuit for short to ground and short to voltage. If problem is found, repair as necessary. If problem is not found, go to next step.
    3. CAUTION: Do not use any knock sensor that has been dropped or physically damaged.
  3. Measure resistance between ground and knock sensor terminal No. 1. Resistance should be 500-620 k/ohms at 77°F (25°C). If resistance is as specified, go to step  5 . If resistance is not as specified, replace knock sensor.
  4. Remove Gray, 6-pin joint connector No. 2 (connector F32) located near ECM. See Figure . Check the following:
    • Check continuity between ground and connector F32 terminal No. 1 (Black/Yellow wire).
    • Check continuity between each joint connector terminal (component side).

    Continuity should exist. Also, check circuit for short to voltage. If problem is found, repair as necessary. If problem is not found, go to next step.

  5. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
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