Engine-Codes - Toyota - P2195 2005 Toyota Highlander

P2195 2005 Toyota Highlander Code - Oxygen Air/Fuel Sensor Signal Stuck Lean Bank 1 Sensor 1

- Code Popularity: 3,009 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P2195 2005 Toyota Highlander?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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)
⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC P2195 2005 Toyota Highlander?

Check 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 pins.

Search for P2195 2005 Toyota Highlander Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P2195 2005 Toyota Highlander code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

P2195 indicate a malfunction related to bank 1 of the A/F sensor circuit.

What are Code Possible Symptoms?

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

What Does the P2195 2005 Toyota Highlander 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.

P2195 2005 Toyota Highlander Code - Oxygen Air/Fuel Sensor Signal Stuck Lean Bank 1 Sensor 1

Need more Information on the Code?

Need more information on how to fix the P2195 2005 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2195 2005 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area