U3530 Diagnostic Trouble Code

U3530 is a kind of OBD-II Diagnostic U-Network 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 U3530 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
Poor fuel economy

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Dirty air cleaner element Damaged DPF

Repair Processes :

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. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code U3530 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 U3530.

Fortunately, U3530 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U3530 Trouble Code For Specific Cars

U3530 Toyota Camry O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
U3530 Hudson Jet Right Front Center Sensor Circuit Short to Vbat
U3530 Cadillac Allante Damper RR Circuit Open
U3530 Subaru B11 LED #1 Circuit Short to Battery
U3530 Rolls-royce Silver Cloud IAC Monitor Disabled by PSP Switch Failed On
U3530 Clan Crusader Fuel Rail/System Pressure - Too High
U3530 Chrysler Valiant Exhaust Pressure Sensor High