Engine-Codes - Generic - P1154

P1154 - HO2S Transition Time Ratio Bank 2 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1154 Possible Causes

  • Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
  • Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted
  • Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection

How is the P1154 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.

What is the cost to diagnose the P1154 code

Labor: 1.0

The cost to diagnose the P1154 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.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

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

P1154 Meaning

The Powertrain Control Module (PCM) continuously monitors the Heated Oxygen Sensor (HO2S) activity for 100 seconds. During the monitor period the PCM counts the number of times that the HO2S responds from rich to lean and from lean to rich and adds the amount of time it took to complete all transitions. With this information, an average time for all transitions can be determined. The PCM then divides the rich to lean average by the lean to rich average to obtain a ratio.

More Information

Need more information on how to fix the P1154 code?
Get Access to Factory Service Manuals

Information for specific makes

Need more help?

Get the P1154 code diagnosed by a professional: Find a repair shop in your area