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Home >> Nissan-Datsun >> 2011 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1148 To P2A03 (Qr25DE) >> DTC P1217 Engine Over Temperature >> Diagnosis Procedure >> Procedure A

Procedure A

  1. CHECK IPDM E/R POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector E44.
    3. Check voltage between IPDM E/R terminal 22 and ground with CONSULT-III or tester.

    Voltage: Battery voltage 

    Fig 1: Checking Voltage Between IPDM E/R Terminal 22 And Ground
    G07144367Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  3.

    NG: GO TO 2.

  2. DETECT MALFUNCTIONING PART

    Check the following.

    • 40 A fusible link
    • Harness for open or short between IPDM E/R and battery

    Repair open circuit or short to ground or short to power in harness or connectors.

  3. CHECK COOLING FAN RELAYS POWER SUPPLY CIRCUIT
    1. Disconnect cooling fan relays-4 (2) and -5 (1).
      • : Vehicle front
      Fig 2: Location Of Cooling Fan Relays-4 And -5
      G07144368Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Check voltage between cooling fan relays-4, -5 terminal 1 and ground with CONSULT-III or tester.

    Voltage: Battery voltage 

    Fig 3: Checking Voltage Between Cooling Fan Relays-4, -5 Terminal 1 And Ground
    G07144369Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  5.

    NG: GO TO 4.

  4. DETECT MALFUNCTIONING PART

    Check the following.

    • 40 A fusible link
    • Harness for open or short between cooling fan relays-4, -5 and battery

      Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK COOLING FAN MOTORS POWER SUPPLY CIRCUIT
    1. Disconnect cooling fan motor-2 (2) harness connector.
      • : Vehicle front
      • Cooling fan motor-1 (1)
      Fig 4: View Of Cooling Fan Motor-2 And Fan Motor-1
      G07144370Courtesy of NISSAN MOTOR CO., U.S.A.

      Voltage: Battery voltage 

    2. Check voltage between cooling fan motor-2 terminal 2, 4 and ground with CONSULT-III or tester.
    Fig 5: Checking Voltage Between Cooling Fan Motor-2 Terminal 2, 4 And Ground
    G07144371Courtesy of NISSAN MOTOR CO., U.S.A.

    Continuity should exist  .

    OK or NG 

    OK: GO TO  7.

    NG: GO TO 6.

  6. DETECT MALFUNCTIONING PART

    Check the following.

    • 40 A fusible link
    • Harness for open or short between cooling fan motor-2 and battery

    Repair open circuit or short to ground or short to power in harness or connectors.

  7. CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connectors E43, E44 and E46.
    3. Disconnect cooling fan motor-1 (1) harness connector.
      • : Vehicle front
      • Cooling fan motor-2 (2)
    4. Check harness continuity between the following;

      cooling fan relay-4 terminal 2 and IPDM E/R terminal 45,

      cooling fan relay-4 terminal 5 and IPDM E/R terminal 23,

      cooling fan relay-5 terminal 2 and IPDM E/R terminal 6,

      cooling fan relay-5 terminal 5 and ground,

      cooling fan relay-4 terminal 3 and cooling fan motor-1 terminal 2,

      cooling fan motor-1 terminal 2 and IPDM E/R terminal 24,

      cooling fan motor-1 terminal 4 and IPDM E/R terminal 20,

      cooling fan motor-1 terminal 1, 3 and ground.

      IPDM E/R terminal 39, 59 and ground.

      cooling fan relay-4 terminal 5 and cooling fan motor-2 terminal 1,

      cooling fan relay-5 terminal 3 and cooling fan motor-2 terminal 3,

      Refer to WIRING DIAGRAM .

      Fig 6: Location Of Cooling Fan Motor-2 And Fan Motor-1
      G07144372Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO  9.

    NG: GO TO 8.

  8. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness for open or short between cooling fan relay-4 and IPDM E/R
    • Harness for open or short between cooling fan relay-5 and IPDM E/R
    • Harness for open or short between cooling fan relay-4 and cooling fan motor-1
    • Harness for open or short between cooling fan relay-4 and cooling fan motor-2
    • Harness for open or short between cooling fan relay-5 and cooling fan motor-2
    • Harness for open or short between cooling fan relay-5 and ground
    • Harness for open or short between cooling fan motor-1 and ground
    • Harness for open or short between IPDM E/R and ground

    Repair open circuit or short to ground or short to power in harness or connectors.

  9. CHECK GROUND CONNECTIONS

    Loosen and retighten ground screw on the body.

    Refer to "GROUND INSPECTION ".

    Fig 7: Location Of Washer Tank, Fuse And Fusible Link Box And Body Ground E15
    G07144373Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 10.

    NG: Repair or replace ground connections.

  10. CHECK COOLING FAN RELAYS-4 AND -5

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 11.

    NG: Replace malfunctioning cooling fan relay. For the relay number, refer to "WIRING DIAGRAM ". For the relay layout, refer to "HARNESS LAYOUT ".

  11. CHECK COOLING FAN MOTORS-1 AND -2

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 12.

    NG: Replace malfunctioning cooling fan motor. Refer to "REMOVAL AND INSTALLATION ".

  12. CHECK INTERMITTENT INCIDENT

    Perform TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

    OK or NG 

    OK: Replace IPDM E/R. Refer to IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) .

    NG: Repair or replace harness or connector.

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