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Test SC-2A - Checking Speed Control On/Off Switch

WARNING: This page is about a different car, the 1996 Eagle Vision, 1996 Dodge Intrepid, 1996 Chrysler New Yorker, 1996 Chrysler LHS, and 1996 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform TEST SC-1A  before proceeding.
  1. Turn ignition on. Using scan tool, read speed control switch voltage. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, go to step 3).
  2. Disconnect 2-pin SET/RESUME switch connector (located behind speed control SET/RESUME switch). Using scan tool in voltmeter mode, check voltage of 2-pin SET/RESUME switch connector signal circuit White wire. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, replace speed control SET/RESUME switch. Perform TEST SC-VER .
  3. Disconnect 2-pin ON/OFF switch connector (located behind speed control ON/OFF switch). Using scan tool in voltmeter mode, check voltage of 2-pin ON/OFF switch connector signal circuit White wire. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, replace speed control ON/OFF switch. Perform TEST SC-VER .
  4. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of speed control switch signal circuit at PCM connector terminal No. 41 Red/Light Green wire. If resistance is 5.1 k/ohms or more, replace PCM. Perform TEST SC-VER . If resistance is less than 5.1 k/ohms, repair short to ground on speed control switch signal circuit. Perform TEST SC-VER .
  5. Disconnect 2-pin speed control ON/OFF switch connector (located behind speed control ON/OFF switch). Connect a jumper wire between 2-pin speed control ON/OFF switch connector terminals. Turn ignition on. Using scan tool, read speed control switch voltage. If voltage is one volt or more, go to next step. If voltage is less than one volt, replace speed control ON/OFF switch. Perform TEST SC-VER .
  6. Remove jumper wire from 2-pin speed control ON/OFF switch connector. Using scan tool in voltmeter mode, check voltage of speed control switch signal circuit at 2-pin speed control ON/OFF switch connector. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, repair open ground circuit on 2-pin ON/OFF switch connector. Perform TEST SC-VER .
  7. Replace PCM. Perform TEST SC-VER .
  8. Disconnect 4-pin clockspring connector. The 4-pin clockspring connector is located behind steering wheel. Turn ignition on. Using scan tool in voltmeter mode, check voltage of speed control switch signal circuit Red/Light Green wire at 4-pin clockspring connector. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, replace clockspring. Perform TEST SC-VER .
  9. Disconnect PCM connector. Using an external ohmmeter, check resistance of speed control switch signal circuit Red/Light Green wire between 4-pin clockspring connector and PCM connector terminal No. 41. If resistance is 5 ohms or more, repair open Red/Light Green wire. Perform TEST SC-VER . If resistance is less than 5 ohms, replace PCM. Perform TEST SC-VER .
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