Test SP-6A, Checking Cruise Control Resume Switch Circuit

1. Turn ignition switch to OFF position. Disconnect Single Board Engine Controller (SBEC) connector. Inspect connector. If connector is not okay, repair connector as necessary. Perform VERIFICATION TEST SP-VER  .
2. If connector is okay, turn ignition switch to ON position. Place DRB-II in voltmeter mode. Probe terminal No. 50 (White/Light Green wire) at SBEC connector. If voltage is more than 10 volts, replace cruise control switch. Perform VERIFICATION TEST SP-VER  . If voltage is less than 10 volts, go to next step.
3. Access cruise control switch connector. See Fig 1 . While holding RESUME switch down, backprobe White/Light Green wire at cruise control switch connector. If voltage is less than 10 volts, replace cruise control switch. If voltage is more than 10 volts, go to next step.
4. Continue to hold RESUME switch down and probe terminal No. 50 (White/Light Green wire) at SBEC connector. If voltage is less than 10 volts, repair open in White/Light Green wire. Perform VERIFICATION TEST SP-VER  . If voltage is more than 10 volts, replace SBEC. Perform VERIFICATION TEST SP-VER  .

Fig 1: Locating Cruise Control Switch Connector