27A Switch Inputs to the Logic Module

1. Connect the diagnostic readout box to the engine harness connector and put the system into the switch test mode.
2. Check the switch inputs, press down on brake pedal, with auto transmission, move gear selector from park to reverse. With A/C, move blower switch to an on position and then press the A/C button.
3. If the display on the readout box changes for all switches, Perform Test, Checking Secondary Ignition System.
4. If one or more switch inputs do not change the display, Preform Step B if it is the Brake Switch. Perform Step C if it is the Park/Neutral Switch. Perform Step D if it is the A/C Button.