Engine Cooling Fan Control Circuit

Cooling fan relay 1 control circuit.

Engine cooling fan control circuit.

How to test ford and lincoln 3 wire electric cooling fans. The ecm controls the cooling fan by grounding the cooling fan control circuit which turns on the cooling fan relay. The engine coolant temperature reaches 106 c 223 f or more. The cooling fan should be commanded on under certain conditions where the engine requires more cooling and this is controlled via the cooling fan relay.

How to test fan module control box ms908p scanner. Or a failure of the fan relay or control circuit is bad news. If this does not take place the check engine light will illuminate on the dashboard. The ecu then triggers a check engine light to illuminate on the dashboard.

P0481 is the obd ii generic code for a problem with the control circuit for cooling fan 2. The engine coolant temperature reaches 106 c 223 f or more. The pcm powertrain control module senses the increase in engine temperature through the cts coolant temperature sensor located near the thermostat. Https amzn to 2lci9ag in this video we will demonstrate how to test radiator fan and radiator fan con.

This code refers to the engine cooling fan circuit as it experiences a malfunction causing the fan to fail and allowing the engine to overheat. The pcm controls the cooling fan by grounding the cooling fan control circuit which turns on the cooling fan relay. Because it can allow the engine to overheat. The a c clutch requested.

P0480 means that the cooling fan 1 control circuit has a malfunction. The fan may work but it only runs at low speed. Engine cooling fan issues. The cooling fan relay will be commanded on when the following conditions are met.

What the p0480 code means. The a c clutch requested. This code is a generic trouble code which means it applies to all vehicles equipped with obd ii scanner or vehicles made since 1996 up to present. The vehicles ecu has tried to control the cooling fan 1 and it has failed to operate or a fault was detected.

The cooling fan relay will be commanded on when the following conditions are met. The engine may also overheat if fan speed fails to increase when additional cooling is needed. Error code p0480 is defined as cooling fan 1 control circuit malfunction. When the temperature reaches about 223 degrees f value depends on make model engine the pcm will command the cooling fan relay to turn on the fan.