What Is A Diagnostic Trouble Code; Obd-I Vehicles (Ford); Reading Your Obd-I (Ford) Vehicle - AutoXray CodeScout 2500 Manual De Usuario

OBD-I VEHICLES (GM, Chrysler)
Viewing the OBD-I (GM, Chrysler) Vehicle Data
Before you start, you must complete Reading your OBD-I (GM, Chrysler) Vehicle.
To view codes at anytime, press MENU, select VIEW CODES and press ENTER.
The CodeScout does not need to be connected to the vehicle to view the data. The
vehicle data remains in the memory until a vehicle is read again. This allows you to
review the data at a later time or to use EZ-PC to load the data into a computer.
When viewing the OBD-I GM and Chrysler vehicle data, pressing the left and right
arrow buttons navigate forward and backward through the list of stored codes. The
code number is displayed at the top of the screen, and supporting text is displayed
at the bottom of the screen. If the entire supporting text does not fit on the screen,
pressing the up and down arrow buttons scrolls through the text.
To view the data that was previously saved using the Scan History function, simply
recall the saved vehicle information as follows:
• Press MENU
• Select SELECT VEHICLE TYPE
• Select PREVIOUSLY SAVED
• Select the desired scan
All scanned data for that vehicle is loaded into the tool.
What is a Diagnostic Trouble Code (DTC)?
When the OBD system determines that a problem exists, a corresponding trouble
code is stored in the computer's memory and triggers the MIL. These codes help to
identify the problem with the vehicle (Fig.19).
1. Arrow to the left and right to view the codes.
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Once repairs have been done on a vehicle, clearing DTCs helps to make sure the
repairs were done correctly.
1. Power the CodeScout on. Make sure the tool is configured correctly for the vehicle.
Also make sure the vehicle is connected using the appropriate cable.
2. Turn the vehicle ignition key to ON or start the engine.
3. Press CLEAR.
NOTE: On many OBD-I GM and Chrysler vehicles, the codes cannot be cleared
using a tool, but instead the vehicle battery must be disconnected. The tool
will notify you if any specific procedure needs to be done to clear the codes.
Fig.20
Refer to Configuring the tool for your vehicle - GM, Ford, and Chrysler OBD-I in this
manual for specific instructions on configuring the tool and connecting the appropriate
cables.
The CodeScout tool reads three different types of trouble codes from Ford OBD-I
vehicles: key on, engine off (KOEO) codes, key on, engine running (KOER) codes,
and memory codes. KOEO codes are read during a scan when the ignition key is in
the ON position and the engine is not running. KOER codes are read during a scan
when the ignition key is in the ON position and the engine is running.
Fig.19
OBD-I VEHICLES (GM, Chrysler)
Clearing your OBD-I (GM, Chrysler) Vehicle
4. Once the codes are cleared, you will be taken
back to the initial screen with the cable image.
The Clear Failed screen (Fig.20) is displayed if
the tool was unable to clear the codes.

Reading your OBD-I (Ford) Vehicle

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