DR-1D Switch Inputs to Logic Module

1. Connect diagnostic read-out tool to engine test connector.
2. Put system into Switch Test Mode.
3. Depress brake pedal, then shift transmission from Park to Reverse. On models equipped with A/C, place blower switch in an On position and depress the A/C button.
4. If display on read-out tool changes as each switch is activated, proceed to Test 1 step I. DR-1I Automatic Idle Speed Motor Operation
5. If display on read-out tool does not change when one or more of the switches are activated, proceed as follows:
a. If brake switch activation does not change display, proceed to Test 1 step E on models less speed control, or Test 1 step F on models with speed control.

DR-1E Brake Switch Input to Logic Module

DR-1F Brake Switch Input to Logic Module

b. If park/neutral switch activation does not change display, proceed to Test 1 step G. DR-1G Park/Neutral Switch Input Circuit
c. If A/C button activation does not change display, proceed to Test 1 step H. DR-1H A/C Push Button Switch Input Circuit