Engine-Codes - Generic - P115B

P115B - Low Fuel Level - Forced Engine Shutdown

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P115B Possible Causes

  • Low fuel
  • Fualty Fuel Level Sensor
  • Fuel Level Sensor harness is open or shorted
  • Fuel Level Sensor circuit poor electrical connection

How is the P115B code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Check that there is sufficient fuel in the tank. Check the fuel level sensor and circuits. If no fault is found in the circuits, install a new fuel level sensor. Clear all the codes and test for normal operation.

What is the cost to diagnose the P115B code

Labor: 1.0

The cost to diagnose the P115B code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P115B Meaning

Fuel level information is sent from the instrument cluster to the Powertrain Control Module (PCM) on the communication link. If an excessively low fuel level input message is received by the PCM from the instrument cluster, the PCM limits the fuel rail pressure (FRP).

More Information

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Information for specific makes

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