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Home >> Lincoln >> 1984 >> Mark VII LSC, 5.0 F >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Control Switches
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Control Switches

  1. Check main feed fuse and stop light fuse. If okay, disconnect 6-way connector at amplifier assembly. Turn ignition "OFF". Connect voltmeter between Light Blue/Black lead and ground.
  2. Turn ignition "ON". Depress "ON" button and check for battery voltage. Make the following tests while rotating steering wheel. 3: Depress "OFF" button and check for reading from 0 to 1 ohm. Depress "SET/ACCEL" and check for a reading from 646 to 714 ohms. Depress "COAST" and check for a reading from 114 to 126 ohms.
  3. Depress "RESUME" and check for a reading from 2090 to 2310 ohms. If resistance readings are okay but meter needle fluctuates, remove steering wheel and clean contact surfaces of cruise control ground brush and turn signal brush.
  4. If resistance readings are high, check switch assemblies and ground circuit in steering column.
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