AutoCodes – Lexus – P0098 Lexus

P0098 Lexus Code - Intake Air Temperature Sensor 2 Circuit High Voltage

Quick Answer

The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0098 Lexus indicates Intake Air Temperature Sensor 2 Circuit High Voltage.
Common causes: Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,557

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0098 Lexus Description

The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). The IAT sensor is located in the air intake passage of the engine air induction system. The IAT sensor has a signal circuit and a ground circuit.

OBDII Code P0098 Lexus - Intake Air Temperature Sensor 2 Circuit High Voltage - AutoCodes.com — P0098 Lexus Code - Intake Air Temperature Sensor 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0098 Lexus?

Faulty Intake Air Temperature sensor
Intake Air Temperature sensor harness is open or shorted
Intake Air Temperature sensor circuit poor electrical connection

How to Fix the DTC P0098 Lexus?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0098 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0098 Lexus code?

Need more information on how to fix the P0098 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0098 Lexus code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0098 Lexus Code

1. What are the common symptoms of OBDII code P0098 in a Lexus related to the Intake Air Temperature Sensor 2 Circuit High Voltage?

The common symptoms include poor engine performance, decreased fuel efficiency, and potential stalling or rough idling.

2. What are the possible causes of OBDII code P0098 in a Lexus?

Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

3. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High Voltage issue in my Lexus?

You can diagnose the issue by using a diagnostic scanner to read the OBDII codes, testing the intake air temperature sensor with a multimeter, and inspecting the sensor wiring for any visible damage.

4. Is it safe to continue driving my Lexus with OBDII code P0098 triggered?

It is not recommended to continue driving your Lexus with this code triggered, as it can lead to further engine damage or unsafe operating conditions.

5. Can I repair the OBDII code P0098 issue in my Lexus myself?

If you have the necessary tools and knowledge, you may be able to repair the issue yourself by replacing the intake air temperature sensor or repairing any damaged wiring or connectors.

6. Will resetting the OBDII code P0098 in my Lexus make the issue go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed and repaired, the code is likely to reappear.

7. How much does it typically cost to fix the Intake Air Temperature Sensor 2 Circuit High Voltage issue in a Lexus?

The cost of repair can vary depending on the specific problem, but it may range from $100 to $300 for parts and labor.

8. Can a malfunctioning intake air temperature sensor affect other systems in my Lexus?

Yes, a malfunctioning sensor can negatively impact the engine's air-fuel mixture, ignition timing, and overall performance of the vehicle.

9. Are there any preventive measures I can take to avoid the Intake Air Temperature Sensor 2 Circuit High Voltage issue in my Lexus?

Regular maintenance, such as checking and cleaning the sensor, inspecting wiring for damage, and using quality fuel, can help prevent this issue from occurring.

10. How long does it take to repair the OBDII code P0098 issue in a Lexus?

The repair time can vary depending on the extent of the problem and the availability of parts, but it typically takes 1-2 hours for a professional technician to diagnose and fix the issue.