Computers and Control Systems: Testing and Inspection

NOTE: This system should be tested during the complete diagnostic test of electronically controlled carburetor engine.

Engine Revolution Switch & Relay
1. Start engine and run until it reaches operating temperature.
2. Turn off engine and disconnect ECC 20-pin connector.
3. Start engine and check continuity between terminals No. 7 (+) and No. 12 (-) of ECC 20-pin connector. There should be no continuity below and continuity above approximately 3600 rpm.
4. If not within specification, repair or replace as necessary.