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5. Troubleshooting
5.1 Error Message
When a "Communication Error!" message displays, please check the following:
● Verify ignition key is in the ON position.
● Make sure the code reader is correctly attached to vehicle's Data Link
Connector (DLC).
● Check DLC for cracked or recessed pins, or for any substance that could
prevent a good electrical connection.
● Check NT200E's OBDII connector for bent or broken pins.
● Make sure the vehicle is OBDII/EOBD compliant.
● Cycle the vehicle key to OFF for 10s and then back to ON.
● Verify battery voltage is at least 8.0V with KOEO.
● Verify that the control module is not defective.
NT200E OBDII/EOBD Code Reader User's Guide_English Version_V1.0
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