Engine-Codes - Toyota - P2196 2005 TOYOTA PRIUS

P2196 2005 TOYOTA PRIUS Code - Oxygen Air/Fuel Sensor Signal Stuck Rich Bank 1 Sensor 1

- Code Popularity: 4,053 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P2196 2005 TOYOTA PRIUS Code?

  • Faulty Oxygen Air/Fuel Sensor Bank 1 Sensor 1
  • Oxygen Air/Fuel Sensor Bank 1 Sensor 1 harness is open or shorted
  • Oxygen Air/Fuel Sensor Bank 1 Sensor 1 circuit poor electrical connection
  • Faulty EFI Relay
  • Faulty Injector
  • Faulty Engine Control Module (ECM)

|How to Fix the P2196 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 P2196 2005 TOYOTA PRIUS code?

Labor: 1.0

The cost to diagnose the P2196 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.

Does your car have Safety Recalls? → Check here

|When is the P2196 2005 TOYOTA PRIUS code detected?

P2196 indicate a malfunction related to bank 1 of the A/F sensor circuit.

|What are P2196 2005 TOYOTA PRIUS code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Excessive Fuel Consumption

|What Does the P2196 2005 TOYOTA PRIUS Code Mean?

The Air-Fuel ratio (A/F) sensor provides output voltage approximately equal to the existing air-fuel ratio.
The A/F sensor output voltage is used to provide feedback for the Engine Control Module (ECM) to control the air-fuel ratio.
With the A/F sensor output, the ECM can determine deviation from the stoichiometric air-fuel ratio and control proper injection time. If the A/F sensor is malfunctioning, the ECM is unable to accurately control air-fuel ratio.
The A/F sensor is equipped with a heater which heats the zirconia element. The heater is also controlled by the ECM. When the intake air volume is low (the temperature of the exhaust gas is low), current flows to the heater which heats the sensor to facilitate detection of accurate oxygen concentration.
The A/F sensor is a planar type. Compared to a conventional type, the sensor and heater portions are narrower. Because the heat of the heater is conducted through the alumina to zirconia (of the sensor portion), sensor activation is accelerated.

Oxygen Air/Fuel Sensor Signal Stuck Rich Bank 1 Sensor 1

|Need more information with the P2196 2005 TOYOTA PRIUS code?

Need more information on how to fix the P2196 2005 TOYOTA PRIUS code?
Get Access to Factory Service Manuals

|Need help with a P2196 2005 TOYOTA PRIUS code?

Get the p2196 2005 toyota prius code diagnosed by a professional: Find a repair shop in your area