Scan Tool Data List Definitions
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
NOTE:
See appropriate PID VALUE chart for specific PID application.
The column labeled Data List indicates where a parameter is located on the scan tool. Review the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed.
- Engine Data 1
Contains general information regarding fuel delivery, Idle Air Control (IAC) position, Heated Oxygen Sensor (HO2S 1), HO2S 2, and other basic engine operating conditions. - Engine Data 2
Contains general information regarding Engine Coolant Temperature (ECT), Intake Air Temperature (IAT), Mass Air Flow (MAF), basic engine operating conditions. - EGR Data
Contains information specific to the Exhaust Gas Recirculation (EGR) system. This list displays parameters required to verify proper EGR system operation. - EVAP Data
Contains information specific to the EVAP control system. Also displays parameters required to verify proper EVAP system operation. - Fuel Trim Data
Contains information specific to the fuel trim operation. Also displays parameters required to verify proper fuel trim operation. - Misfire Data
Contains information specific to the misfire diagnostics and parameters required to verify proper operation with regard to misfire. - Output Driver Data
Contains information specific to output driver circuits. This data monitors circuit status, and circuit history.