Test TC-15B - Speed Control Power Relay & Solenoid Circuits

NOTE: For connector terminal idnetification, see CONNECTOR IDENTIFICATION DIRECTORY table. For wiring diagram, see WIRING DIAGRAMS article.

Using an external ohmmeter, check resistance of switched Speed Control (SC) power supply circuit Dark Blue/Red wire between brake switch connector and SC servo connector. If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open SC power supply circuit. Perform TEST VER-4A .
Check brake switch adjustment. See the BRAKES article in the BRAKES section. If brake switch adjustment is okay, replace brake switch. Perform TEST VER-4A . If brake switch adjustment is not okay, adjust brake switch as necessary. Perform TEST VER-4A .