Mitsubishi Montero (1998+). Manual - part 178

 

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Mitsubishi Montero (1998+). Manual - part 178

 

 

Fig. 5:  Power Transistor Connector Terminals (Mirage 1.8L)

Courtesy of Mitsubishi Motor Sales of America

         2) Using an analog ohmmeter, check for continuity between

terminals No. 2 and 3 of power transistor. Continuity should exist.

With positive end of 1.5-volt battery disconnected, there should be no

continuity. Replace power transistor if it fails test.

         DISTRIBUTORLESS IGNITION SYSTEM (DIS - V6)

         Ignition Coil Resistance

         1) On 3000GT DOHC, go to next step. On Montero and Montero

Sport, use DVOM to measure primary coil resistance between each

individual coil. To check secondary coil resistance, measure

resistance between towers of each individual coil. Replace coil if

primary and secondary coil resistances are not within specification.

See IGNITION COIL RESISTANCE (V6) table.

         2) Using DVOM, measure primary coil resistance between

terminal No. 3 (power terminal) and each individual coil terminal. See

Fig. 6. Terminal No. 1 controls coil "B", terminal No. 2 controls coil

"A", and terminal No. 4 controls coil "C". See  Fig. 7. To check

secondary coil resistance, measure resistance between towers of each

individual coil. Replace coil if primary and secondary coil

resistances are not within specification. See

IGNITION COIL RESISTANCE (V6) table.

IGNITION COIL RESISTANCE (V6) - Ohms @ 68



F (20



C) TABLE



Application                Primary                 Secondary

3.0L

  VIN J & K  ............  .67-.81  .........  11,300-15,300

  VIN P  ................  .74-.90  .........  20,100-27,300

3.5L (VIN M)  ...........  .74-.90  .........  20,100-27,300



Fig. 6:  Identifying Ignition Coil Terminals (3000GT DOHC)

Courtesy of Mitsubishi Motor Sales of America

Fig. 7:  Identifying Ignition Coils (3000GT DOHC)

Courtesy of Mitsubishi Motor Sales of America

         Power Transistor

         1) To test section of power transistor that controls

cylinders No. 1 and 4 of ignition coil, disconnect power transistor

connector. Using a 1.5-volt dry cell battery, connect negative end of

1.5-volt battery to terminal No. 4 of power transistor and positive

end to terminal No. 3. See Fig. 8.

         2) Using an analog ohmmeter, check for continuity between

terminals No. 4 and 13 of power transistor. Continuity should exist.

With positive end of 1.5-volt battery disconnected, there should be no

continuity. Replace power transistor if it fails test.

         3) To test section of power transistor that controls

cylinders No. 2 and 5 of ignition coil, connect negative end of 1.5-

volt battery to terminal No. 4 of power transistor and positive end to

terminal No. 2.

         4) Using an analog ohmmeter, check for continuity between

terminals No. 4 and 12 of power transistor. Continuity should exist.

With positive end of 1.5-volt battery disconnected, there should be no

continuity. Replace power transistor if it fails test.

         5) To test section of power transistor that controls

cylinders No. 3 and 6 of ignition coil, connect negative end of 1.5-

volt battery to terminal No. 4 of power transistor and positive end to

terminal No. 1.

         6) Using an analog ohmmeter, check for continuity between

terminals No. 4 and 11 of power transistor. Continuity should exist.

With positive end of 1.5-volt battery disconnected, there should be no

continuity. Replace power transistor if it fails test.

Fig. 8:  Identifying Power Transistor Terminals

Courtesy of Mitsubishi Motor Sales of America

         HALL EFFECT IGNITION

         Ignition Coil Resistance

         Using a DVOM, measure primary coil resistance between

specified coil terminals. See Figs. 9-12. On Galant, measure between

terminals No. 11 and 12. On Mirage measure between terminals No. 1 and

2. On all other vehicles, measure between positive and negative

terminals. Measure secondary coil resistance between coil positive

terminal and ignition coil tower. Primary and secondary coil

resistance should be within specification. See

IGNITION COIL RESISTANCE TABLE.

IGNITION COIL RESISTANCE TABLE - Ohms @ 68



F (20



C)



Application                Primary                 Secondary

1.5L (VIN A)  ...........  .50-.70  .........  15,000-22,000

2.4L (VIN G)

  Galant  ..............  .90-1.20  .........  20,000-29,000

  Montero Sport  ........  .67-.81  .........  11,300-15,300

3.0L (VIN H)  ...........  .72-.88  .........  12,290-13,920

3.5L (VIN P)  ...........  .50-.70  ...........  9000-13,000



Fig. 9:  Ignition Coil Connectors Terminals (Except DIS - Diamante)

Courtesy of Mitsubishi Motor Sales of America

 

 

 

 

 

 

 

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