C3580 Diagnostic Trouble Code

C3580 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a C3580 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code C3580 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C3580.

Fortunately, C3580 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3580 Trouble Code For Specific Cars

C3580 Tvr 1800 PNP Switch Out Of Self Test Range
C3580 Alfa Romeo 20 ABS Power Relay Output Short Circuit To Ground
C3580 Cadillac V16 Disable Signal Output Circuit Short to Battery
C3580 Reliant Se7 Gate Select Position Circuit Intermittent
C3580 Fiat 125 Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
C3580 Simca 1200 Intake Manifold Runner Control (Bank 2) Stuck Open
C3580 Kia Sephia Secondary Air Injection System Switching Valve A Circuit Shorted