B2878 Trouble Code

View B2878 obd/2 error code description and symptoms. B2878 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.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

B2878 Error Code Repair Process :

The scent may B2878 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 B2878, so if the inside of your car crankshaft position sensor b circuit low input 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.

B2878 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B2878

A common cause of code B2878 is the failure of Crankshaft Position Sensor B Circuit Low Input, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
EVAP system hose leaking
Faulty ignition coil (s)
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted

B2878 code for all cars

You can view according B2878 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B2878 Peugeot 3008 Ii

+B2878 Daihatsu Fr-x

+B2878 Mg Rv13

+B2878 Chery A13

+B2878 Suzuki Suzulight

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