Frequently Asked Questions (FAQ)

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Trouble Shooting - OBD2 Multi-Functional Display

Q1: Shadow OBD2 diagnostic multi-function display shows no action after vehicle switch is turned on.

A:
Poor contact on OBD II connector. The main body and the control box circuit are in poor contact. Please double-check that each connector and terminal are tight.

Q2: Shadow OBD2 diagnostic multi-function display flashing occur in warning mode under normal values.

A:
Please check the warning value setting to see if the warning value is set too low and cause early warning. Please reset the warning mode of the D-Meter2.

Q3:Some values (turbo, exhaust temperature) cannot be displayed in Shadow OBD2 diagnostic multi-function display.

A:
After OBD2 is standardized, each Parameter IDs (PIDs) has a corresponding position. The value cannot be displayed may be that the PIDs and components are not used in the original factory setting, so the value of the OBD2 display cannot be displayed.

Q4: After the engine is turned off, Shadow OBD2 diagnostic multi-function display is not turned off at the same time.

A:
That's because the ECU of some models shuts down and stops sending signals after the engine has been turned off for a period of time.

Q5: Shadow OBD2 diagnostic multi-function display appear "---" on the screen after the power is turned on.

A:
The value cannot be displayed. It may be that the PIDs are not supported in the original factory settings, so the OBD2 display value cannot be displayed. This is normal, please don’t worry.

Q6: The lights of other modes keep flashing during use.

A:
The warning function of other modes is activated. Please switch to the warning value setting mode to check whether the data is abnormal or increase the warning value. This is normal, don't worry.

Q7: After the engine is turned off, the product is not turned off at the same time.

A:
This is because the ECU shuts down and stops sending signals after the engine has been turned off for a period of time. This is normal, don't worry.

Q8: The AFR signal is incorrect or cannot be read.

A:
The value cannot be displayed or the value is incorrect. It may be that the PIDs are not supported in the original factory settings, so the OBD2 display value cannot be displayed. The sensor can be selected by setting the AFR signal source to ensure that the correct information can be read. If the information is still incorrect, it means that the product does not support the signal of the car.

Q9: The mileage of Shadow OBD2 diagnostic multi-function display does not match the mileage on the car.

A:
There will be some errors in the mileage itself. In addition, this product will not automatically read the mileage, so there will be a gap in the first use. The mileage must be manually set in first time. There are "+,–%" in the mileage setting that can be set, and can be fine-tuned according to the degree of error.

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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.