Roadi RDT51 - Manual (Page 141)

OWNER S MANUAL
,
OBD2 Car Scanner
137
CHECK
13.10 Battery Replacement
The scan tool requires a 9V cell battery to operate when disconnected
from vehicle power.
1). Locate the battery cover on the back of the scan tool.
2). Remove the battery cover screw and slide the battery cover off.
3). Remove discharged batteries and install a new 9V cell battery.
4). Reinstall battery cover by sliding battery cover on and installing screw.
13.11 Vehicle Coverage
This model T79 OBDII/EOBD Scanner is specially designed to work
with all OBD II compliant vehicles, including those equi pped with next-
generation protocol -- Control Area Network (CAN). It is required by EPA
that all 1996 and newer vehicles (cars and lig ht trucks) sold in the United
States must be OBD II compliant and this includes all Domestic, Asian and
European vehicles.
A small number of 1994 and 1995 model year gasoline vehicles are
OBD II compliant. To verify if a 1994 or 1995 vehicle is OBD II 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
OBD II 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 OBD II 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 OBD II compliant.
13.12 Product Troubleshooting
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
tocheck up:
Verify that the ignition is ON;
Check if the scan tool's OBD II connector is securely connected to the
vehicle’s DLC;
Verify that the vehicle is OBD2 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: