Roadi RDT51 - Manual (Page 47)

OWNER S MANUAL
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OBD2 Car Scanner
43
CHECK
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.
6.11 Vehicle Coverage
This model T69 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).
6.12 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 to
check up:
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.
Verify the control module is not defective.
Verify that the ignition is ON;