![background image](http://html.mh-extra.com/html/unitec/20996/20996_instruction-manual_844166011.webp)
21
20
If the message
“CONNECTION ERROR”
appears switch the ignition off for about 10 seconds, check
whether the OBD II connection of the scan tool is securely connected to the vehicle’s DLC and then
switch the ignition on again. Repeat this procedure from step 4.1/1-5. If the message
“CONNECTION
ERROR”
does not disappear it is possible that the scan tool cannot communicate with the vehicle.
6) Wait until the main menu appears after the scan results have appeared in a short overview with the
total number of DTCs and the general I/M status.
7) Select
“Diagnostic (DTC)”
from the main menu by pressing the
OK/ENTER
button.
•
If no diagnostic trouble codes are retrieved
“NO CODES”
appears in the display.
•
If diagnostic trouble codes are present the total number of trouble codes is displayed followed by the
suspected codes.
8) Read off the Diagnostic Trouble Codes by pressing the
SCROLL
button.
•
The first code number is displayed in the first line of the LCD display, the numerical code sequence
and the total number of stored codes appear in the second line. To display additional codes press
the
SCROLL
button to scroll down as far as necessary until all the codes have been displayed.
•
If the code retrieved is a suspected code, at the end of the LCD display
“PD”
appears.
•
To display previous codes press the
SCROLL
button to scroll through to the end and then start
with the first in the list.
9) You will find diagnostic trouble code definitions in Paragraph 5. Compare the retrieved DTC(s)
with the ones listed and read the definitions through.
GB
Operating instructions
GB
Operating instructions
3.3 Product characteristics
1.
Functions in all vehicle models manufactured in 1996 and more recent vehicles and transporters that
are OBD II compliant (including CAN, VPW, PWM, ISO and KWP 2000).
2.
Reads and erases general and manufacturer-specific diagnostic trouble codes (DTCs) and switches the
“Check engine” light out.
3.
Supports multiple error-coded queries, generic codes, pending codes (suspected troubles) and
manufacturer-specific codes.
4.
Monitors the emission readiness status of OBD monitors.
5.
Accesses the VIN (car chassis number) for vehicles manufactured since 2002 and newer models.
6.
Determines the status of the malfunction indicator light (MIL).
7.
Easy to use with one plug-in; extremely reliable and accurate.
8.
Easy to read, crystal clear, two-line, back-lit LCD display.
9.
Single device requiring no additional laptop computer to use it.
10. Small and space-saving.
11. Communicates securely with the on-board computer.
12. No batteries required -- power supply via removable OBD II cable.
3.4 Equipped vehicles
All petrol vehicles manufactured since 2000 and diesel vehicles manufactured since 2003 have been
equipped with OBD-II connection. Some older models have also got an OBD-II socket. You can get the
information from your specialist garage.
So that your vehicle is compliant with OBD-II, it must have a DLC (data link connector) with a 16-pin
connector under the dashboard and on the vehicle’s emission control label it must be stated that the
vehicle is OBD-II-compliant.
4.
Operating Instructions
4.1 Reading codes:
CAUTION: Do not connect any test equipment with the ignition on and also do not disconnect
it in this state.
1) Switch the ignition off.
2) Plug the scan tool cable connection piece into the 16-pin
data link connector (DLC).
3) Wait until UNITEC OBD-2 is displayed in the LCD display.
or
4) Switch the ignition on. But do not start up the engine.
5) Press the “
OK/ENTER
” button. A sequence of messages that display the OBD protocols can be
monitored in the display until the vehicle protocol is detected.
•
Not all the messages listed above are monitored if the protocol used by the vehicle being tested is
the last, the IS09141 protocol. They will stop appearing after the vehicle protocol has been detected
and an XXX protocol confirmation message is displayed.
UNITEC
OBD-2
SCAN...
VPW
SCAN...
PMW
SCAN...
CAN
SCAN...
ISO9141
SCAN...
KWP2000
DTC
06
I / M
YES
Menu:
1. Diagnostic (DTC)
NO
CODES
TROUBLE: 03
PEND: 03
P0101
01/04
P0005 PD
01/05
C. A. N.
OBD-2
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