P04BC Trouble Code

View P04BC obd/2 error code description and symptoms. P04BC engine photo

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P04BC, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P04BC on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P04BC Error Code Repair Process :

OBD P04BC code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and purge valve stuck open, while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to P04BC malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for P04BC and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

P04BC is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Common Causes of P04BC

A common cause of code P04BC is the failure of Purge Valve Stuck Open, but there are several other possible causes as well, such as ;

Exhaust tube
Dirty Oil
1Camshaft Position Sensor circuit poor electrical connection
Fuel injector leaks

P04BC code for all cars

You can view according P04BC DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P04BC Locomobile Junior

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