Roadi RDT55 - Manual (Page 14)

OWNER S MANUAL
,
OBD2 CODE SCANNER
12
If the " LINK ERROR" message does not go away, then there might be
problems for the scan tool to communicate with the module being tested.
The most common cause is that the scanned module is not supported on the
vehicle.
If the scan tool fails to communicate with the selected Vehicle's ECU (Elec-
tronic Control Unit). a "
LINK ERROR"”message shows up on the display.
Verify that the ignition is ON:
Check if the scan tool's 0BDII connector is securely connected to the
vehicle's DLC;
Verify that the module supported;
Turn the ignition off and wait for about 10 seconds. Turn the ignition back to
on and repeat the procedure from step 5.
The numbers (01.02.15.03.08.etc) in front of the system names refer to
the physical addresses assigned to the systems, not the sequence of the
systems to be arranged.
8). Select Read Codes from the Select Function menu and press the Y
button.
If there are no Diagnostic Trouble Codes present, the display will indicate
NO CODES ARE STORED IN THE MODULE!
If there are any Diagnostic Trouble Codes present, the DTC number and its
definition will show On the LCD display.
The subcode, the communication protocol, the sequence of the DTC
currently being observed and the total number of codes detected will be
observed on the upper rig ht corner of the display.
When a DTC's definition covers more than one display screen, use the
Y
button, as necessary, to view any additional information.
Select Function
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1) Read Codes
2) Erase Codes
3) ECU Information
4) Readiness Test