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Check vehicle battery to make sure it is still good with at least
8.0 V
• LED lamps not working
Make sure the OBD II cable is connected to the DLC securely. to
check the scan tool.
Verify the ignition key is in the KOER position.
Run the LED Test in the System Setup menu. If the scan tool did not
pass this test, there is a problem with the LED lamp. Please contact
JD201 Tech Support or your local selling agent.
3. OBDII Diagnostics
When more than one vehicle control module is detected by the scan
tool, you will be prompted to select the module where the data may
be retrieved. The most often to be selected are the Power train
Control Module [PCM] and Transmission Control Module [TCM].
CAUTION: Don’t connect or disconnect any test equipment with
ignition on or engine running.
1. Turn the ignition off.
2. Locate the vehicle's 16-pin Data Link Connector (DLC).
