B2860 Diagnostic Trouble Code

B2860 is a kind of OBD-II Diagnostic B-Body 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 B2860 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
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.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

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. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B2860 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 B2860.

Fortunately, B2860 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2860 Trouble Code For Specific Cars

B2860 Mercedes C 300 ABS Inlet Valve Coil LR Circuit Open
B2860 Ford Model Akt Mirror Driver Vertical Switch Circuit Failure
B2860 Holden Belmont Pedal Position Forward Switch Circuit Short to Battery
B2860 Daf 44 Gear Lever X - Y Position Sensor Circuit
B2860 Fiat Stilo LED #1 Circuit Short to Battery
B2860 Wolseley 6
B2860 Abarth Ot 1600 A/C Post Heater Sensor #2 Circuit Failure