Scan Tool Data List

Scan Tool Data List





The Engine Cooling Scan Tool Data List contains all engine cooling related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

Use the Engine Cooling Scan Tool Data List only after the following is determined:
^ The Diagnostic System Check - Vehicle is completed.
^ No diagnostic trouble codes (DTCs)
^ On-board diagnostics are functioning properly.
Scan tool values from a properly functioning engine cooling system may be used for comparison with the system you are diagnosing. The Engine Cooling Scan Tool Data List represents values that would be seen on a normal system.

Important: A scan tool that displays faulty data should not be used. The scan tool problem should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Cooling for diagnosis.

The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:
All
The Parameter is in all of the data lists indicated below.
Cooling/HVAC
Cooling/HVAC Data List
Eng
Engine Data List
EE
Enhanced Evaporative Emission (EVAP) Data
FT
Fuel Trim Data List
H2
Heated Oxygen Sensor (HO2S) Data List
IG
Ignition System Data List
MF
Misfire Data List
OD
Output Driver Data List
TAC
Throttle Actuator Control (TAC) Data List