Reading and Clearing Diagnostic Trouble Codes

This mode is used to see if there are any fault codes stored in the on-board diagnostic sytem memory.
1. Connect Tool C-4805 to the mating connector located in the wiring harness, just below the computer, by the right front fender.
2. Place the read/hold switch on the readout box in the READ position.
3. Open the carburetor switch by placing the fast idle speed adjusting screw on the highest step of the fast idle cam.
4. Turn the ignition switch to the run position and wait for 00 to appear on the readout box display.
5. Move the read/hold switch to the HOLD position.
6. Record all codes. NOTE: You may stop the displaying of codes by moving the read/hold switch to the READ position. Returning to the hold position will continue the displaying of codes.