DR-1C Checking Switch Inputs to Logic Module

1. Connect diagnostic read-out tool to engine harness connector.
2. Place system in Switch Test Mode.
3. Check switch inputs by pressing down on brake pedal, moving gear selector from park to reverse (auto. trans.) or turning A/C on.
4. If display on read-out tool changes as one or more of switches are activated, proceed to Test 1 step H. DR-1H Checking Fuel Injectors
5. If display on read-out tool does not change as one or more of switches are activated, proceed as follows:
Brake switch without speed control, proceed to Test 1 step D; DR-1D Brake Switch to Logic Module (W/O Speed Control)
Brake switch with speed control, proceed to Test 1 step E; DR-1E Brake Switch to Logic Module (W/Speed Control)
Park/Neutral switch, proceed to Test 1 step F; DR-1F Park/Neutral Switch Input to Logic Module
A/C button, proceed to Test 1 step G. DR-1G A/C Push Button Switch Input Circuit