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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 >> 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.
  1. If using CONSULT-II, go to next step. If not using CONSULT-II, go to step  4 .

  2. Check Cooling Fan Low Speed Operation (With CONSULT-II)

    Remove cooling fan relay No. 2. See Fig 1 . Turn ignition on. Select COOLING FAN in ACTIVE TEST mode with CONSULT-II. If cooling fans operate at low speed, go to next step. If cooling fans do not operate at low speed, go to COOLING FAN LOW SPEED CIRCUIT  .

  3. Check Cooling Fan High Speed Operation (With CONSULT-II)

    Turn ignition off. Install cooling fan relay No. 2. Turn ignition on. Select COOLING FAN in ACTIVE TEST mode with CONSULT-II. If cooling fan No. 1 operates at high speed, go to step  6 . If cooling fan No. 1 does not operate at high speed, go to COOLING FAN HIGH SPEED CIRCUIT  .

  4. Check Cooling Fan Low Speed Operation (Without CONSULT-II)

    Remove cooling fan relay No. 2. See Fig 1 . Start engine and let it idle. Turn A/C and blower on. If cooling fans operate at low speed, go to next step. If cooling fans do not operate at low speed, go to COOLING FAN LOW SPEED CIRCUIT  .

  5. Check Cooling Fan High Speed Operation (Without CONSULT-II)

    Turn ignition off. Install cooling fan relay No. 2. Turn A/C and blower off. Disconnect ECT sensor harness connector. See Figure . Connect a 150 ohm resistor between ECT sensor harness connector terminals. Start engine. If cooling fan No. 1 operates at high speed, go to next step. If cooling fan No. 1 does not operate at high speed, go to COOLING FAN HIGH SPEED CIRCUIT  .

  6. Check Cooling System For Leak

    Pressure test cooling system and radiator cap. Check thermostat operation. Radiator cap relief pressure should be 8.6-14.2 psi (59-98 kPa). Thermostat opening temperature should be 180°F (82°C). 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.

  7. Check ECT Sensor

    Check ECT sensor as shown in illustration. See Figure . If ECT sensor is not okay, replace ECT sensor. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair. If ECT sensor is okay, go to next step.

  8. Check Main 12 Causes

    Check for other possible causes of engine overheating. See Fig 2 . If problem is found, repair as necessary. Perform DTC CONFIRMATION TEST (OVERALL FUNCTION CHECK)  to verify repair. If problem is not found, test is complete.
Fig 1: Locating Cooling Fan Relays
G00014351Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Main 12 Causes Of Overheating
G00164624Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE: For circuit wiring diagram, see Figure . For connector identification and locations, see CONNECTOR IDENTIFICATION  .
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