Retrieving Trouble Codes
Diagnostic Trouble Codes (DTCs) are accessed by shorting 2 terminals of the Data Link Connector (DLC). The DLC is located in engine compartment just forward of master cylinder reservoir. To display stored codes, connect a jumper wire between terminal Tc and E1. See Fig 1. The cruise indicator light will now steadily flash on and off, indicating no DTCs are stored, or display any stored codes by flashing a numbered sequence. If more than one code is stored, they will be flashed sequentially from lowest to highest.
When reading DTCs carefully read all codes and write them down. Continue reading codes until first code repeats. After recording any codes that have been displayed, clear codes from memory and test drive vehicle to verify symptom and see if any DTCs return. If any repairs or adjustments to the cruise system have been made, clear codes and repeat procedure.