Primary Coil And Ignition Power Transistor Continuity Check

Fig 1: Checking Primary Coil And Ignition Power Transistor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: An analog-type ohmmeter should be used.

NOTE: Connect the negative probe of the ohmmeter to terminal 1.

CAUTION: This test must be performed quickly (in less than 10 seconds) to prevent coil from burning and ignition power transistor from breaking.

1. Connect and disconnect 4.5 - 9.0 V battery between terminal No. 2 and No. 3, and observe the ohmmeter whether there is continuity or not.
2. If results do not agree with the table below, replace the primary coil and ignition power transistor assembly.

PRIMARY COIL AND IGNITION POWER TRANSISTOR CONTINUITY CHECK

4.5-9.0V POWER SUPPLY BETWEEN TERM. 2-3	CONTINUITY BETWEEN TERM. 1-2
Current flowing	Yes
Current not flowing	No