Skip the auto shop - Our mechanics make house calls

P2069 OBD-II Trouble Code: Fuel Level Sensor B Circuit Intermittent

Check Engine Light

P2069 code definition

Fuel Level Sensor B Circuit Intermittent

What the P2069 code means

P2069 is an OBD-II generic code for the engine control module (ECM) detecting the fuel level sensor B signal is intermittent. The sensor output voltage is not steady or goes away and comes back when compared to the fuel level sensor A.

What causes the P2069 code?

  • The ECM uses fuel level sensors A and B output voltages to determine the vehicle's fuel control. The two fuel senders are used on vehicles that have a dual bladder or dual sump fuel tank.

  • The sensor does not give any voltage signal at times indicating the fuel sensor is intermittently having a problem sending a signal.

What are the symptoms of the P2069 code?

  • The Check Engine Light may be illuminated and the code set in ECM memory as a fault.

  • The fuel system may not reflect how much fuel is in the fuel tank.

  • The vehicle may run out of fuel if the fuel tank sensor is not giving a signal voltage and the vehicle runs out of fuel.

How does a mechanic diagnose the P2069 code?

  • Scans for codes and documents the codes in the ECM; looks at the freeze frame data for failure.

  • Checks the sensor A and B to compare the readings for fuel level and compares it to actual fuel level.

  • Checks the fuel level sensor B for the proper resistance with a multimeter.

  • Checks the wire connections for loose or corroded pins.

  • Follows the manufacturer pinpoint tests for the diagnosis and replacement of the fuel level sensor B.

Common mistakes when diagnosing the P2069 code?

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired.

  • Failing to clear the ECM codes after the codes are fixed so the ECM will enable the system to normal again.

  • Replacing the fuel level sensor without first checking the wire connections for corrosion or loose pins.

How serious is the P2069 code?

Code P2069 is a code letting the operator know the fuel level sensor B is not working intermittently and may affect the amount of fuel available to the engine and cause the fuel gauge to become erratic and not trusting it to be accurate.

What repairs can fix the P2069 code?

  • Replacing the fuel pump sending unit B.
  • Repairing the connector pins of corrosion or loose connections at the fuel pump on the fuel tank.

Additional comments for consideration regarding the P2069 code

Code P2069 is for an intermittent problem with the fuel level sensor B and vehicles that use this second sensor to control the transfer pump to keep the tank side to side level and may cause unequal fuel levels in the two sides of the fuel tank. Keep this in mind when diagnosing the code and look at other codes that may also be present.

Need help with a P2069 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...


Related questions

Q: Code P0340

The P0340 problem code references a camshaft position sensor malfunction. The ability to restart the engine suggests it is failing versus has failed. There was an issue with this engine with the cam chain tensioner - which also affects cam...

Q: 2012 equinox reduced power light engine light and traction light came on. Lost a lot of power got home and all light except engine

Your car has what is called a "safe mode" that will be engaged by the computer when it detects that something critical has gone wrong related to any of the major components in your engine chassis or power train. This...

Q: Check Engine Light came on. Car also has problems cranking but only when I refill it with gas.

Hi there - the first thing to do is extract the problem code(s) which are setting the "Check Engine" light. This will more efficiently direct resolution of the problem. Evaporative emission system problems are often associated with "fill-up" issues like...