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

NOTE: Perform TEST TC-15A before proceeding. For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY. For component location see wiring diagram in the WIRING DIAGRAMS article.

Turn ignition off. Using an external ohmmeter, check resistance of switched S/C power supply circuit between brake light switch connector and S/C servo connector. If resistance is more than 5 ohms, repair open switched S/C power supply circuit and perform TEST VER-4A. If resistance is 5 ohms or less, go to next step.
Check brakelight switch adjustment. Adjust brakelight switch as necessary and perform TEST VER-4A. If brakelight switch is adjusted properly, replace brakelight switch and perform TEST VER-4A.