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Home >> Land Rover >> 2017 >> Discovery Sport SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Electronic Engine Controls - INGENIUM I4 2.0L Petrol -- Discovery Sport/L550) >> Electronic Engine Controls - INGENIUM I4 2.0L Petrol >> Description And Operation >> Description >> Auxiliary Coolant Pump

Auxiliary Coolant Pump

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
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The auxiliary coolant pump is an electric pump attached on a bracket, at the rear left side of the engine compartment.

When the engine is turned off the auxiliary coolant pump provides engine coolant flow to prevent coolant boiling in the turbocharger and in the integrated exhaust manifold.

The auxiliary coolant pump has a three pin connector. One pin receives a permanent startup battery voltage, supplied from a fused output from the Battery Junction Box (BJB). The second pin has a hardwired connection to the Powertrain Control Module (PCM) and the third pin has a ground connection.

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