Engine Cooling Fan Control Circuit

The ecm controls the cooling fan by grounding the cooling fan control circuit which turns on the cooling fan relay.

Engine cooling fan control circuit.

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. The fan may work but it only runs at low speed. The a c clutch requested. How to test fan module control box ms908p scanner.

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 engine may also overheat if fan speed fails to increase when additional cooling is needed. Cooling fan relay 1 control circuit. The a c clutch requested.

The cooling fan relay will be commanded on when the following conditions are met. What the p0480 code means. On applications that have variable fan speeds. How to test ford and lincoln 3 wire electric cooling fans.

The cooling fan relay will be commanded on when the following conditions are met. The engine coolant temperature reaches 106 c 223 f or more. If this does not take place the check engine light will illuminate on the dashboard. The pcm powertrain control module senses the increase in engine temperature through the cts coolant temperature sensor located near the thermostat.

Or a failure of the fan relay or control circuit is bad news. The vehicles ecu has tried to control the cooling fan 1 and it has failed to operate or a fault was detected. P0481 is the obd ii generic code for a problem with the control circuit for cooling fan 2. The pcm controls the cooling fan by grounding the cooling fan control circuit which turns on the cooling fan relay.

Engine cooling fan issues. The ecu then triggers a check engine light to illuminate on the dashboard. 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. Https amzn to 2lci9ag in this video we will demonstrate how to test radiator fan and radiator fan con.

Error code p0480 is defined as cooling fan 1 control circuit malfunction. Because it can allow the engine to overheat. The engine coolant temperature reaches 106 c 223 f or more. 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.