Test C: Flash Code 3 - DEACTIVATOR Switch Circuit
- Check Stoplight Operation - Check stoplight operation while pressing brake pedal. If stoplights operate properly, go to next step. If stoplights do not operate properly, see appropriate EXTERIOR LIGHTS wiring diagram in SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section to continue diagnosis.
- Check Deactivator Switch Input - Disconnect speed control servo/actuator connector C102 (located next to brake master cylinder). Using a voltmeter, check voltage between ground and speed control servo/actuator connector C102 terminal No. 9. See Figure . If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, replace speed control servo/actuator and perform SELF-DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM.
- Check Light Green/Red Wire For Open - Disconnect deactivator switch connector C246 (located behind lower side of brake pedal). Using a voltmeter, check voltage between ground and deactivator switch connector C246 Light Green/Red wire terminal. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair Light Green/Red wire between instrument panel fuse block and deactivator switch. Perform SELF-DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM.
- Check Tan/Orange Wire For Open - Using an ohmmeter, check resistance in Tan/Orange wire between deactivator switch and speed control servo/actuator connector C102 terminal No. 9. See Figure . If resistance is less than 5 ohms, replace deactivator switch and perform SELF-DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM. If resistance is 5 ohms or more, repair open in Tan/Orange wire and perform SELF-DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM.