P04B4 Trouble Code

View P04B4 obd/2 error code description and symptoms. P04B4 engine photo

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

P04B4 Error Code Repair Process :

The scent may P04B4 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such P04B4, so if the inside of your car electric air pump primary failure as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

P04B4 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 P04B4

A common cause of code P04B4 is the failure of Electric Air Pump Primary Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Continuous oil flow to the VCT piston chamber
Faulty Mass Air Flow (MAF) sensor
Incorrect fuel pressure

P04B4 code for all cars

You can view according P04B4 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P04B4 Suzuki Lapin

+P04B4 Renault 17

+P04B4 Mercedes Cla 200

+P04B4 Rover 3.5-litre

+P04B4 Hyundai Creta

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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