CLAS AC 5247 Mode D'emploi page 38

AC 5247
READER DEFAULT CODE OBDII
3) Press any button to return Main Menu.
9. Vehicle Coverage
The scan tool OBDII/EOBD Scanner is specially designed to work with all OBDII compliant
vehicles, including those equipped with next-generation protocol -- Control Area Network
(CAN) It is required by EPA that all 1996 and newer vehicles (cars and light trucks) sold in the
United States must be OBDII compliant and this includes all Domestic, Asian and European
vehicles.
A small number of 1994 and 1995 model year gasoline vehicles are OBDII compliant. To verify
if a 1994 or 1995 vehicle is OBDII compliant, check the Vehicle Emissions Control Information
(VECI) Label which is
located under the hood or by the radiator of most vehicles. If the vehicle is OBDII compliant,
the label will designate "OBDII Certified". Additionally, Government regulations mandate that
all OBDII compliant vehicles must have a "common" sixteen-pin Data Link Connector (DLC)
For your vehicle to be OBDII compliant it must have a 16-pin DLC (Data Link Connector)
under the dash and the Vehicle Emission Control Information Label must state that the
vehicle is OBDII compliant.
10. Product Troubleshooting
This part describes problems that you may encounter while using the scan tool.
• Vehicle Linking Error
A communication error occurs if the scan tool fails to communicate with the vehicle's ECU
(Engine Control Unit) You need to do the following to check up:
- Verify that the ignition is ON.
- Check if the scan tool's OBDII connector is securely connected to the vehicle's DLC.
- Verify that the vehicle is OBDII compliant.
- Turn the ignition off and wait for about 10 seconds. Turn the ignition back to on and
continue the testing.
- Verify the control module is not defective.
• Operating Error
If the scan tool freezes, then an exception occurs or the vehicle's ECU (Engine Control Unit)
is too slow to respond to requests. You need to do the following to reset the tool:
- Reset the scan tool.
- Turn the ignition off and wait for about 10 seconds. Turn the ignition back to on and
continue the testing
• Scan tool doesn't power up
If the scan tool won't power up or operates incorrectly in any other way, you need to do the
following to check up:
- Check if the scan tool's OBDII connector is securely connected to the vehicle's DLC;
- Check if the DLC pins are bent or broken. Clean the DLC pins if necessary.
- Check vehicle battery to make sure it is still good with at least 8.0 volts.
- Verify the control module is not defective.