U0162 Diagnostic Trouble Code

U0162 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 U0162 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. 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.

Process Tips

Diagnostic trouble code U0162 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 U0162.

Fortunately, U0162 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0162 Trouble Code For Specific Cars

U0162 Lada Kalina Shift Solenoid B Control Circuit Low
U0162 Suzuki Fronte
U0162 Chrysler Cirrus Engine RPM Output Circuit Malfunction
U0162 Moretti Fiat Blower (Fan) Circuit Short to Vbatt
U0162 Willys-overland Aero-willys SCP (J1850) Invalid or Missing Data for Primary Id / Vehicle Speed
U0162 Audi Ur Audio Phone is Not Responding
U0162 Proton Perdana Fuel Shutoff Valve Control Circuit Low