Checking the Main Relay Circuit

Checking The Main Relay Circuit






















- Connect a jumper lead between pin 1 (30) and pin 2 (87).
- Contact trionic.

Reading: Main Relay Voltage







The value should be B+.

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - III

YES - Changing Components