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Ground Circuit Test (Auto. Trans.)

  1. Support vehicle so wheels are off the ground. Connect test lamp wire to battery positive post.
  2. Disconnect wire from solenoid vacuum valve and insert probe in Orange wire terminal.
  3. Start engine and put transmission in "D". Accelerate slowly and note speed at which test lamp goes out (above 37 mph). Slowly decelerate and note speed at which test lamp goes on (below 33 mph).
  4. Adjust switch if operation is outside operating range. Turn Vie" Allen screw in switch terminal to change setting (clockwise to increase opening speed; counterclockwise to decrease). See Fig. 6  .
  5. If lamp does not light at all, perform SOLENOID CONTROL SWITCH TEST.
NOTE: Perform next test if test lamp did not light in the previous tests.
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