Mitsubishi Montero (1998+). Manual - part 71

Fig. 9:  Testing Electric Cooling Fan Relay (Montero, Montero

Sport & 3000GT)

Courtesy of Mitsubishi Motor Sales of America.

         SYSTEM TESTING

NOTE:    For appropriate wiring diagram, see  WIRING DIAGRAMS.

NOTE:    Radiator fan on Montero and Montero Sport is mounted to a

         hydraulic fan clutch which is mounted to the water pump.

         Replace fan clutch if leaks are detected at case joints and

         seals, fan can be rotated with very light resistance or the

         bimetallic strip is damaged.

NOTE:    Operation of radiator and condenser fans is controlled by

         vehicle Powertrain Control Module (PCM). Based on vehicle

         speed, coolant temperature and A/C operation request, PCM

         will command low, medium or high speed fan operation.

         Diamante

         1) If only the radiator fan does not operate, check fusible

link No. 6 located in engine compartment relay box. If only the

condenser fan does not operate, check dedicated fuse No. 16 (20-amp)

located in engine compartment relay box. See  WIRING DIAGRAMS. Repair

as necessary.

         2) If radiator fan and condenser fan operate in all speeds

except low, check appropriate low speed relay. See COMPONENT TESTS.

See WIRING DIAGRAMS. If low speed relay is okay, check PCM. See

appropriate G - TESTS W/CODES article in ENGINE PERFORMANCE.

      *  G - TESTS W/CODES - 1997

      *  G - TESTS W/CODES - 1998

         3) If radiator fan and condenser fan operate in all speeds

except high, check appropriate high speed relay. See COMPONENT TESTS.

See WIRING DIAGRAMS. If high speed relay is okay, check PCM. See

appropriate G - TESTS W/CODES article in ENGINE PERFORMANCE.

      *  G - TESTS W/CODES - 1997

      *  G - TESTS W/CODES - 1998

         4) To confirm radiator fan or condenser fan operation, see

FAN OPERATING MODE (DIAMANTE) table. If fan operation is not as

specified, check wiring harness for opens or shorts. Repair as

necessary.

FAN OPERATING MODE (DIAMANTE) (1)

                        Power Circuit

Coolant                   Operating       Radiator           Condenser

Temp. 



F (



C)             Low/High        Fan Speed          Fan Speed

13 MPH (2)

  221 (105) (2)  ........  On/Off  .......  Low  ................  Low

  221 (105) (3)  ........  Off/On  .......  Mid  ................  Mid

  239 (115) (3)  ........  On/On  ........  High  ..............  High

13 MPH (3)

  221 (105) (2)  ........  On/Off  .......  Low  ................  Low

  221 (105) (2)  ........  On/On  ........  High  ..............  High

30 MPH (2)

  203 (95) (2)  ........  Off/Off  .......  Off  ................  Off

  203 (95) (3)  .........  On/Off  .......  Low  ................  Off

  221 (105) (3)  ........  Off/On  .......  Mid  ................  Mid

30 MPH (3)

  194 (90) (2)  ........  Off/Off  .......  Off  ................  Off

  194 (90) (3)  .........  On/Off  .......  Low  ................  Off

  221 (105) (3)  ........  On/On  ........  High  ...............  Mid

50 MPH (3)

  221 (105) (2)  .......  Off/Off  .......  Off  ................  Off

  221 (105) (3)  ........  On/On  ........  High  ...............  Mid

(1) - A/C request switch is turned off.

(2) - Approximate vehicle speed/coolant temperature or less.

(3) - Approximate vehicle speed/coolant temperature or more.

NOTE:    Operation of radiator and condenser fans is controlled by

         vehicle Powertrain Control Module (PCM). Based on vehicle

         speed, coolant temperature and A/C operation request, PCM

         will command low, medium or high speed fan operation.

         Eclipse

         1) If only the radiator fan does not operate, check fusible

link No. 7 (20-amp) located in engine compartment relay box. If only

the condenser fan does not operate, check dedicated fuse No. 9 (20-

amp) located in engine compartment relay box. See  WIRING DIAGRAMS.

Repair as necessary.

         2) If radiator fan and condenser fan operate in all speeds

except low, check appropriate low speed relay. See COMPONENT TESTS.

See WIRING DIAGRAMS. If low speed relay is okay, check PCM. See

appropriate G - TESTS W/CODES article in ENGINE PERFORMANCE.

      *  G - TESTS W/CODES - 2.0L NON-TURBO - 1997

      *  G - TESTS W/CODES - 2.0L TURBO - 1997

      *  G - TESTS W/CODES - 2.4L - 1997

      *  G - TESTS W/CODES - 2.0L NON-TURBO - 1998

      *  G - TESTS W/CODES - 2.0L TURBO & 2.4L - 1998

         3) If radiator fan and condenser fan operate in all speeds

except high, check appropriate high speed relay. See COMPONENT TESTS.

See WIRING DIAGRAMS. If high speed relay is okay, check PCM. See

appropriate G - TESTS W/CODES article in ENGINE PERFORMANCE.

      *  G - TESTS W/CODES - 2.0L NON-TURBO - 1997

      *  G - TESTS W/CODES - 2.0L TURBO - 1997

      *  G - TESTS W/CODES - 2.4L - 1997

      *  G - TESTS W/CODES - 2.0L NON-TURBO - 1998

      *  G - TESTS W/CODES - 2.0L TURBO & 2.4L - 1998

         4) To confirm radiator fan or condenser fan operation, see

FAN OPERATING MODE (ECLIPSE NON-TURBO) or FAN OPERATING MODE (ECLIPSE

2.0L TURBO & 2.4L) table. If fan operation is not as specified, check

wiring harness for opens or shorts. Repair as necessary.

FAN OPERATING MODE (ECLIPSE NON-TURBO)

                          With A/T        With M/T

Coolant                   Radiator        Radiator           Condenser

Temp. 



F (



C)             Fan Speed       Fan Speed          Fan Speed

28 MPH (1) (2)

  203 (95) (2)  ..........  Off  .........  Off  ................  Off

  203-210 (95-99)  .......  Mid  .........  High  ...............  Off

  210 (99) (3)  ..........  High  ........  High  ...............  Mid

28-50 MPH (1)

  194 (90) (2)  ..........  Off  .........  Off  ................  Off

  194-210 (90-99)  .......  Mid  .........  High  ...............  Off

  210 (99) (3)  ..........  High  ........  High  ...............  Mid

50 MPH (1) (3)

  210 (99) (2)  ..........  Off  .........  Off  ................  Mid

  210 (99) (3)  ..........  High  ........  High  ...............  Off

12 MPH (2) (4)

  210 (99) (2)  ..........  Mid  .........  High  ...............  Mid

  210-242 (99-117)  ......  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

12-50 MPH (4)

  210 (99) (2)  ..........  Mid  .........  High  ...............  Mid

  210-242 (99-117)  ......  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

50 MPH (3) (4)

  210 (99) (2)  ..........  Mid  .........  High  ...............  Mid

  210-242 (99-117) (3)  ..  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

(1) - A/C request switch is turned off.

(2) - Approximate vehicle speed/coolant temperature or less.

(3) - Approximate vehicle speed/coolant temperature or more.

(4) - A/C request switch is turned on.

FAN OPERATING MODE (ECLIPSE 2.0L TURBO & 2.4L)

                          With A/T        With M/T

Coolant                   Radiator        Radiator           Condenser

Temp. 



F (



C)             Fan Speed       Fan Speed          Fan Speed

28 MPH (1) (2)

  203 (95) (2)  ..........  Off  .........  Off  ................  Off

  203-210 (95-99)  .......  Low  .........  Mid  ................  Off

  210 (99) (3)  ..........  High  ........  High  ...............  Mid

28-50 MPH (1)

  194 (90) (2)  ..........  Off  .........  Off  ................  Off

  194-210 (90-99)  .......  Low  .........  Mid  ................  Off

  210 (99) (3)  ..........  High  ........  High  ...............  Mid

50 MPH (1) (3)

  210 (99) (2)  ..........  Off  .........  Off  ................  Off

  210 (99) (3)  ..........  High  ........  High  ...............  Mid

12 MPH (2) (4)

  210 (99) (2)  ..........  Low  .........  Mid  ................  Mid

  210-242 (99-117)  ......  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

12-50 MPH (4)

  210 (99) (2)  ..........  Low  .........  Mid  ................  Mid

  210-242 (99-117)  ......  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

50 MPH (3) (4)

  210 (99) (2)  ..........  Low  .........  Mid  ................  Mid

  210-242 (99-117) (3)  ..  High  ........  High  ..............  High

  242 (117) (3)  .........  High  ........  High  ..............  High

(1) - A/C request switch is turned off.

(2) - Approximate vehicle speed/coolant temperature or less.

(3) - Approximate vehicle speed/coolant temperature or more.

(4) - A/C request switch is turned on.

NOTE:    Operation of radiator and condenser fans is controlled by

         vehicle Powertrain Control Module (PCM). Based on vehicle

         speed, coolant temperature and A/C operation request, PCM

         will command low, medium or high speed fan operation.

         Galant

         1) If only the radiator fan does not operate, check fusible

link No. 5 (30-amp) located in engine compartment relay box. If only

the condenser fan does not operate, check dedicated fuse No. 3 (30-

amp) located in engine compartment relay box. See  WIRING DIAGRAMS.

Repair as necessary.

         2) If radiator fan and condenser fan operate in all speeds

except low, check appropriate low speed relay. See COMPONENT TESTS.

See WIRING DIAGRAMS. If low speed relay is okay, check PCM. See

appropriate G - TESTS W/CODES article in ENGINE PERFORMANCE.

      *  G - TESTS W/CODES - 1997

      *  G - TESTS W/CODES - 1998