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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 P0217 Or DTC P1217 >> Cooling Fan High Speed Circuit

Cooling Fan High Speed Circuit

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.

  1. Check Cooling Fan Power Supply Circuit

    Turn ignition off. Reconnect all harness connectors. Remove cooling fan relay No. 2. See Figure . Turn ignition on. Measure voltage between ground and cooling fan relay No. 2 harness connector terminals No. 1 and 3. See Figure . If battery voltage exists at all terminals, go to step  3 . If battery voltage does not exist at all terminals, go to next step.

  2. Detect Malfunctioning Part

    Check the following:
    • Fuse and fusible link box connector E25.
    • Fuse block connector E103.
    • Fuse No. 20 (10-amp)
    • Fusible link "i" (40-amp).
    • Harness for open or short between cooling fan relay No. 2 and fuse.
    • Harness for open or short between cooling fan relay No. 2 and fusible link.

    Repair as necessary. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair.

  3. Check Cooling Fan Ground Circuit For Open & Short

    Turn ignition off. Disconnect both cooling fan motor No. 2 harness connector. See Figure . Check the following:
    • Check continuity between cooling fan relay No. 2 harness connector terminal No. 5 and cooling fan motor No. 1 harness connector terminal No. 2.
    • Check continuity between cooling fan relay No. 2 harness connector terminal No. 6 and cooling fan motor No. 1 harness connector terminal No. 3.
    • Check continuity between body ground and cooling fan relay No. 2 harness connector terminal No. 7.

    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 (OVERALL FUNCTION CHECK)  to verify repair. If problem is not found, go to next step.

  4. Check Cooling Fan Output Signal Circuit For Open & Short

    Disconnect ECM harness connector. See Figure . Check continuity between cooling fan relay No. 2 harness connector terminal No. 2 and ECM harness connector terminal No. 12. Continuity should exist. Also, check harness for short to ground and short to power. If problem is found, go to next step. If problem is not found, go to step  6 .

  5. Detect Malfunctioning Part

    Check the following:
    • Harness connectors E10 and F48.
    • Harness for open or short between cooling fan relay No. 2 and ECM.

    Repair as necessary. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair.

  6. Check Cooling Fan Relay No. 2

    Check cooling fan relay No. 2 as shown in illustration. See Figure . If cooling fan relay No. 2 is okay, go to next step. If cooling fan relay No. 2 is not okay, replace cooling fan relay No. 2. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair.

  7. Check Cooling Fan Motors No. 1 & 2

    Check cooling fan motors as shown in illustrations. See Figure and Figure . If cooling fan motors are okay, go to next step. If cooling fan motors are not okay, replace inoperative cooling fan motor. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair.

  8. Check For Intermittent

    Check for intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair.
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