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Test SP-10A, Testing Cruise Control Set Switch

  1. Put cruise control ON/OFF switch in the ON position. Place DRB-II in voltmeter mode. Probe Brown/Red wire at cruise control switch connector (with connector connected). If voltage is less than 10 volts, replace cruise control switch. Perform VERIFICATION TEST SP-VER  .
  2. If voltage is 10 volts or more, hold down cruise control SET button and probe Brown/Red wire at cruise control switch connector. If voltage is 10 volts or more, replace cruise control switch. Perform VERIFICATION TEST SP-VER  . If voltage is less than 10 volts, go to next step.
  3. Turn ignition switch to OFF position. Disconnect Single Board Engine Controller (SBEC). Inspect connector. If connector is not okay, repair connector as necessary. Perform VERIFICATION TEST SP-VER  . If connector is okay, turn ignition switch to ON position.
  4. Probe terminal No. 48 (Brown/Red wire) at SBEC connector. If voltage is 10 volts or more, replace SBEC. If voltage is less than 10 volts, replace SBEC. Perform VERIFICATION TEST SP-VER  . If voltage is 10 volts or more, replace cruise control switch. Perform VERIFICATION TEST SP-VER  .
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