What does the p0481 code mean on an engine?

What the P0481 code means. P0481 is the OBD-II generic code for a problem with the control circuit for cooling fan 2. 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.

What’s the difference between p0480 and P0 482?

NOTE: P0480 speaks of the basic circuit, however codes P0481, and P0482 relate to the same problem with the only difference is they relate to the different fan speed relays. Check engine light (malfunction indicator lamp) illumination and code P0480 set

What does the code p0480 mean on a PCM?

When the PCM attempts to activate the fan and senses the command and the result do not match, the code is set. NOTE: P0480 speaks of the basic circuit, however codes P0481, and P0482 relate to the same problem with the only difference is they relate to the different fan speed relays.

Is there an OBD-II scanner for p0481?

P0481 is diagnosed with an OBD-II scanner. A qualified technician will use a scanner that is capable of scanning the factory sensor readings (more advanced than one from the auto parts store) to read the code.

How does the p0480 cooling fan relay work?

The PCM (powertrain control module) senses the increase in engine temperature through the CTS (coolant temperature sensor) located near the thermostat. 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.

When to set the p0481 fan relay code?

When the PCM attempts to activate the fan and senses the command and the result do not match, the code is set. NOTE: P0481 speaks of the basic circuit, however codes P0480 and P0482 relate to the same problem with the only difference is they relate to the different fan speed relays.

Why are the cooling fans not working on my 2006 Chevy Silverado?

2006 chevy Silverado Electric cooling fans do not come on. Replaced all relays. Checked the fans by hot wiring them to the battery and they function. Other than the PCM what else could it be? Clicking this will make more experts see the question and we will remind you when it gets answered.

What does the OBD code p0480 mean?

To prevent overheating when there’s minimal airflow through the radiator, the engine is equipped with a cooling fan, which is electric on modern vehicles. The OBD-II code P0480 registers when the vehicle’s powertrain control module (PCM) detects a potential problem with the engine’s electric cooling fan or its control circuit.

How does DTC p0480 work on a car cooling fan?

If the engine temperature reaches a certain value, which may vary depending on the car’s make and model, the PCM will activate the fan through the cooling fan relay. DTC P0480 will register when the PCM does not receive the proper amount of voltage from the cooling fan control circuit.

How much does it cost to repair a p0481 Dodge?

The cost of diagnosing the P0481 DODGE code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

Why do I get error code p0481 on my fan?

There are multiple factors that can lead to this error code, some of the most common possible causes are: Open or shorted fan control relay harness. Open or shorted fan cooling fan harness. Defective faulty fan control relay 2. Faulty cooling fan 2. Poor electrical connections in the cooling fan circuit. Defective coolant temperature sensor.

The cost of diagnosing the P0481 DODGE code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

What is the OBD-II code for cooling fan 2?

The P0481 code identifies a problem with the control circuit for cooling fan 2. It is often associated with the P0480 code. P0481 is the OBD-II generic code for a problem with the control circuit for cooling fan 2.

Why does my van have a p0480 code?

Our van – with 103k miles now – brought up a code P0480 last Spring (at about 100k miles), it’s the cooling fan relay circuit error, so I ordered and replaced the cooling fan relay with the Mopar replacement part in June. Within a day, the code reappeared (after I cleared it with a scan tool). It would occasionally go away, and then come back.

What causes the p0480 OBD-II trouble code?

What causes the P0480 code? 1 Faulty cooling fan 1 2 Poor electrical connection in the fan circuit 3 Failed fan control relay has failed 4 Failed coolant temperature sensor 5 Faulty AC pressure switch 6 VSS not operating properly

What does p0480 mean on a cooling fan?

All our repairs are backed by our 12-month / 12,000-mile warranty. P0480 is a general OBD2 trouble code that refers to the a malfunction within the cooling fan control circuit. This code is similar to P0481 and P0482 codes. P0480 means that the cooling fan 1 control circuit has a malfunction.

What are the possible causes of a p0481 Dodge?

P0481 DODGE Possible Causes 1 Faulty fan control relay 2 Faulty cooling fan 2 3 Fan control relay harness is open or shorted 4 Fan control relay circuit poor electrical connection 5 Fan cooling fan harness is open or shorted 6 Fan cooling fan circuit poor electrical connection 7 Faulty Engine Control Module (ECM)

What does the p0480 code on my car mean?

What the P0480 code means. P0480 means that the cooling fan 1 control circuit has a malfunction. The vehicles ECU has tried to control the cooling fan 1 and it has failed to operate or a fault was detected. The ECU then triggers a Check Engine Light to illuminate on the dashboard.

What is the p0481 code for cooling fan 2?

P0481 code definition. The P0481 code identifies a problem with the control circuit for cooling fan 2. It is often associated with the P0480 code.

What causes the p0481 control circuit malfunction code?

What causes the P0481 code? The cooling fan 2 control circuit malfunction code may have several causes: There is damage or a short in the harness connecting the cooling fan relay causing a poor connection. The wiring connecting the cooling fan to the harness has a short or other damage causing a poor connection.

What does the p0480 code mean on an Audi?

The P0480 code is detected when the Engine Control Module (ECM) detects that the commanded state of the driver and the actual state of the control circuit do not match. The ECM controls the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay.

How does the p0480 GMC cooling fan control circuit work?

The P0480 code is detected when the Powertrain Control Module (PCM) detects that the commanded state of the driver and the actual state of the control circuit do not match. Engine Light ON (or Service Engine Soon Warning Light) The PCM controls the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay.