Definitions
Diagnostic Trouble CodesThe purpose of the "Diagnostic Trouble Codes" mode is to display stored PCM trouble codes.
When "Diagnostic Trouble Codes" is selected an "Application menu" screen appears.
Clear DTC Information
The purpose of the "Clear DTC Information" mode is to command the clearing of stored PCM trouble codes.
When "Clear DTC Information" is selected, a "Clear DTC Information" warning screen appears. This screen informs you that by clearing DTCs, "all stored DTC information in controller will be erased".
Do you want to clear DTCs (Yes/No).
Press either the Yes or No key when answering.
After clearing codes, confirm system operation by test driving the vehicle.
Allow the vehicle to shift through all four forward gears in a manner which attempts to repeat the failure condition.
NOTE: When the trouble has not been repaired and the trouble code cannot be erased, check the vehicle again.
DTC Information
When "DTC Information" is selected, an "Application Menu" appears with a list of DTC information function keys addressing DTC specifics and their origins.
Function key selections may vary for particular vehicle and/or system.
Data Display
The purpose of the "Data Display" mode is to continuously monitor data parameters.
The current actual values of all important sensors and signals in the system are display through F1 mode.
When "Data Display" is selected an "Application Menu" appears. Please select either "Engine" or "Transmission Data Display".
Snapshot
When "Snapshot" is selected an "Application Menu" appears.
When "Transmission Snapshot" application is selected from the "Application Menu", a "Snapshot Menu" appears, displaying several options. "Snapshot" options may vary from one system to another.
"Snapshot" allows a recording of all vehicle parameters. There parameters may then be replayed at a future point in time.
This action allows you to focus on making the condition occur, rather than trying to view all of the data in anticipation of the fault. The snapshot will collect parameter information around a trigger point that you select.
When a snapshot is taken. It is recorded onto PCMCIA memory card. When the Tech 2 is powered down, Snapshots are not lost.
Actuator Tests
The purpose of "Actuator Tests" mode is to check for correct operation of electronic system actuators.
Lamps
You can operate the lamps by pressing the ON and OFF buttons.
Preconditions: None
Solenoid 1-2/3-4, Solenoid 2-3, TCC Solenoid
You can operate the solenoids by pressing the ON and OFF buttons.
Preconditions: P-N position, no vehicle speed, no engine speed
Band Apply Solenoid
You can operate the solenoid by pressing the ON and OFF buttons.
Preconditions: P-N position, idle engine speed, no vehicle speed
Pressure Control Solenoid (PCS)
You can set desired PCS Current using the "Increment" (+20) and "Decrement" (-20) button. The PC Solenoid Data informs about PCS Current, Pressure and Duty Cycle.
Preconditions: P-N position, no engine speed, no vehicle speed
Reset Oil Life Monitor
Displays parameter "Oil Life Monitor" and resets to 100% if Yes-button is pressed on Reset-question. "No" leaves test.
Freeze Frame (Powertrain DTC A/B Type)
Freeze Frame is an element of the Diagnostic Management System which stores various vehicle information at the moment an emission-related fault is stored in memory and when the MIL is commanded on. These date can help to identify the cause of a fault. Refer to Storing and Erasing.
Freeze Fame Data in Engine Driveability and Emissions 3.2L or Storing and Erasing Freeze Fame Data in Engine Driveability and Emissions 2.2L for more detailed information.
Failure Records (Powertrain DTC C/D Type)
Failure Records data is an enhancement of the OBD II Freeze Frame feature. Failure Records store the same vehicle information as does Freeze Frame, but it will store that information for any fault which is stored in on-board memory, while Freeze Frame stores information only for emission-related faults that commands the MIL on.
Transmission Data