Engine Cooling Fan Controller QA | Automotive Gauges, Controllers & OBD2 Displays – Shadow

Performance Electronics for Street & Track – Shadow

Engine Cooling Fan Controller QA

Q1：The light is off and the temperature is not displayed when the ACC is on.

A：Bad connection with red / orange / black wire. Please check the connection and the status of each line.

Q2：Shadow digital automotive radiator fan controller shows the status of “- - -“.

A：The temperature sensor is defective or the circuit of the temperature sensor is defective. Please check the status of the temperature sensor and the circuit.

Q3：The oil temperature shows the status of “LLL”.

A：The temperature is lower than the display range.

Q4：The oil temperature shows the status of “HHH”.

A：The temperature is higher than the display range.

Q5：Shadow digital automotive radiator fan controller does not start when the water temperature reaches the setting value.

A：The wiring is wrong. Please confirm whether there is any error in the wiring method of the product.

Know you the best

SHADOW will not only be a pronoun of global automotive electronics products in the future, but also a good partner for modified car owners! Let more people experience the pleasure and convenience of modified vehicles through SHADOW's products!

 Advantage

Engine Cooling Fan Controller QA

Since 1999 in Taiwan, Shadow builds automotive gauges and controllers for street & track. 99.43% yield, clear wiring diagrams, and step-by-step install guides. Explore specs or request a fast quote.

Engineered for accuracy: environmental testing, precision calibration, real-vehicle validation, and firmware checks. Universal 12V, plug-and-play wiring for quick installs. View install steps & troubleshooting.

25+ years in performance electronics—gauges, controllers, OBD2 displays, Turbo Timers. Compare specs, check fitment, and contact Shadow for dealer pricing or support.