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.

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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.