Frequently Asked Questions (FAQ)

Shadow has top R&D technology and one-stop R&D management process.

Trouble Shooting - OBD2 Multi-Functional Display

Q1: Switch on and without any action coming up.

OBDII connector is in a bad connection. Poor contact of wiring between main device and control box. Please reconfirm whether each connector and terminal are tight.

Q2: Why the data reading is fail?

On-Board Diagnostics(OBD) was first established in 1988 by the American Society of Automotive Engineers(SAE) for the communication protocol for automobiles sold in the United States. However, it was not until 2007 that all brands standardized OBD2 as ISO 15765. Therefore, the automobiles before 2007 do not have standardized communication, so the data cannot be read when using the OBD2 display.

Q3: The warning light flashing when displaying the normal value.

Please check the warning setting to see if the value is too low and cause this happened. Please reset the warning value.

Q4: What vehicle can instsll OBD2 Display?

Automobiles have fully standardized the on-board diagnostic systems.It is not available for heavy truck to install due to the voltage is 24V and also each car manufacturer does not have a unified system agreement, it is not suitable for them to use. Certains brands of motorcycle can also use this displayer but need specific connectors.

Q5:Some values cannot be displayed (Turbo, Exhaust Temperature)

After OBD2 standardization, each Parameter IDs (PIDs) has corresponding positions. It may because the PIDs and components are not used in the factory setting and cause the value cannot displayed.

Q: After the engine is turned off, the product did not shut down at the same time.

This is because the ECU will shut down and stop sending signals in a period of time after the engine is turned off.

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Racing Gauge & Automobile Meter Manufacturer - Shadow

Based in Taiwan, AUTO JAW CO., LTD., since 2004, is a racing gauge and automobile meter manufacturer in the automotive electronics industry. Main product, including Racing Gauge, Boost Gauge, Electronic Throttle Controller, Digital Electronic Boost Controller, Chip Tuning, Turbo Timer, OLED Multi Display, OBD2 Digital Display and so forth.

99.43% in product yield rate, major in automotive electronic modification and reverse engineering. All automobile meters and gauges are manufactured with a series of tests, ranging from environmental simulation test, accuracy correction, actual vehicle test, programming test and assembly test.

Shadow has been offering customers high-quality Racing Gauges & Automobile Meters since 2004, both with advanced technology and 16 years of experience, Shadow ensures each customer's demands are met.