Engine-Codes - Toyota - P2A00 2005 TOYOTA PRIUS

P2A00 2005 TOYOTA PRIUS Code - A/F Sensor Circuit Slow Response Bank 1 Sensor 1

- Code Popularity: 4,266 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P2A00 2005 TOYOTA PRIUS Code?

  • Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1
  • EFI Relay
  • Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted
  • Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection
  • Fuel pressure
  • Fuel injector
  • Intake air leaks

|How to Fix the P2A00 2005 TOYOTA PRIUS Code?

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 P2A00 2005 TOYOTA PRIUS code?

Labor: 1.0

The cost to diagnose the P2A00 2005 TOYOTA PRIUS code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P2A00 2005 TOYOTA PRIUS code detected?

The P2A00 Code is set when A/F sensor output voltage change value is below regular value against fuel trim change value.

|What are P2A00 2005 TOYOTA PRIUS code possible symptoms?

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

|What Does the P2A00 2005 TOYOTA PRIUS Code Mean?

The Air-Fuel ratio (A/F) sensor varies its output voltage in proportion to the air-fuel ratio. Based on the output voltage, the ECM determines if the air-fuel ratio is RICH or LEAN and adjusts the stoichiometric air-fuel ratio. The ECM also checks the fuel injection volume compensation value to check if the A/F sensor is deteriorating or not. A/F sensor response deterioration is determined by the ratio of the A/F sensor output voltage variation and fuel trim variation.

A/F Sensor Circuit Slow Response Bank 1 Sensor 1

|Need more information with the P2A00 2005 TOYOTA PRIUS code?

Need more information on how to fix the P2A00 2005 TOYOTA PRIUS code?
Get Access to Factory Service Manuals

|Need help with a P2A00 2005 TOYOTA PRIUS code?

Get the p2a00 2005 toyota prius code diagnosed by a professional: Find a repair shop in your area