Cooling fans Stays ON- Diagnostics
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 Published On Feb 16, 2023

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Quick test 2013 Range Rover Evoque Cooling fan Stays ON
The cooling fans are operated by a fan control module which is located at the rear of the LH (left-hand) cooling fan motor. The fan control module regulates the voltage, and subsequently the speed, of the cooling fan motors in response to a PWM (pulse width modulation) signal from the ECM (engine control module). The ECM calculates the required fan speeds from the engine temperature, A/C system pressure and transmission fluid temperature.

Under hot operating conditions, the fans may continue to operate for up to four minutes after the engine has been switched off. The speed of the cooling fans is also influenced by vehicle road speed. The ECM adjusts the speed of the cooling fans, to compensate for the ram effect of vehicle speed, using the CAN (controller area network) road speed signal received from the ABS (anti-lock brake system) module.
The cooling fan control module is also mounted on the shroud, behind the LH fan motor. The shroud incorporates 4 speed flaps, which pivot open to allow engine compartment cooling at speed.
The shroud, fans and module are supplied as one assembly and individual parts are not serviceable.

247 AutoMechanic 4U
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