1984 Ski-Doo Shop Manual, Page 316Get this manual
SECTION 04 ELECTRICAL SUB-SECTION 06 (TESTING PROCEDURE)
Control unit diode test
NOTE: This test is applicable only to 4-5P ignition systems
a) Set the selector to CONTROL UNIT DIODE positionThen, four or five LEOs will lightIf four or five LEOs do not lightcheck the power source and that the selector and switches are positioned correctly b) Depress the START switch and read LED level indicatorReading should be: for 4-5P only: from to 8
ANALYSIS OF TEST RESULT
After every test, perform the diagnosis comparing with the diagnostic chart as shown in below