9
Problem
Possible cause
Solution
Vehicle linking error
A communication error occurs if the scan
tool fails to communicate with the vehicle’s
ECU (Engine Control Unit)
Ensure ignition is switched on
Check the scan tools OBD II connector is securely connected to the vehicles
DLC
Switch the ignition off and wait 30 seconds. Switch the ignition back on
and continue testing
Verify the ECU/Control module of the vehicle is not defective
Check if the DLC pins and terminals for damage. Clean if necessary
Operating Error
Scan tool freezes or slow to respond
Reset the scan tool. Switch the ignition off and wait 30 seconds. Switch
the ignition back on and continue testing
Check if the DLC pins and terminals for damage. Clean if necessary
Scan tool not turning on
No power supply to scan tool
Ensure ignition is switched on
Vehicle battery voltage at least 8.0 volts
Verify the control module is not defective
LED indicator not working
Poor connection
Check the scan tools OBD II connector is securely connected to the vehicles
DLC
Ensure ignition is switched on
Run the LED test in the system setup menu
Diagnostic function inoperative
Mode selection
The scanner maybe in ready test mode. In the system setup menu select
‘Scan Tool Mode’
6. Troubleshooting
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between the illustration and actual product. Whilst every effort has been made to ensure that the information contained in this catalogue is accurate at the time of printing, TRIDON AUSTRALIA PTY LTD
will not accept responsibility should any inaccuracies be contained herein.
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5. I/M Readiness cont.
LED Interpretation
In this mode only the GREEN, RED LEDs and audio tone provides an easy
way to check if emission-related monitoring systems complete their self-
diagnostic testing
1 GREEN LED - Indicates that engine systems are “OK” and operating
normally
The number of monitors supported by the vehicle which have run and
performed their self-diagnostic testing is in the allowed limit
2 RED LED - Indicates that the number of monitors supported by the
vehicle which have run and performed their self-diagnostic testing is out
of the allowed limit
Audio Tone Interpretation
The audio tone could be configured according to the I/M Readiness Status.
This function is invaluable when working in bright areas where LED
illumination alone is not sufficient.
OK
- Indicates that a particular monitor being checked has completed its
diagnostic testing
INC
- Indicates that a particular monitor being checked has not completed
its diagnostic testing
N/A
- The monitor is not supported on the vehicle
LED and Audio tone correspondence
LED Light
Audio Tone
Beep Interval
Green LED
Beef off
Yellow LED
Two short beeps
0.5 seconds
Red LED
Two short beeps
0.5 seconds
