AutoCodes – Lexus – C1AE9 Lexus

C1AE9 Lexus Code - Ultrasonic Sensor Rear Right Corner Sensor

Quick Answer

The No. Common causes include Faulty No, 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor), No. 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: C1AE9 Lexus indicates Ultrasonic Sensor Rear Right Corner Sensor.
Common causes: Common causes include Faulty No, 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor), No.
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.

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Code Popularity 721

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1AE9 Lexus Description

The No. 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor). If the No. 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor) has an open circuit or other malfunction, it will not function normally.

OBDII Code C1AE9 Lexus - Ultrasonic Sensor Rear Right Corner Sensor - AutoCodes.com — C1AE9 Lexus Code - Ultrasonic Sensor Rear Right Corner Sensor

What does this mean?

What are the Possible Causes of the DTC C1AE9 Lexus?

Faulty No. 3 Ultrasonic Sensor (Rear Right [RH] Corner Sensor)
No. 3 Ultrasonic Sensor harness is open or shorted
No. 3 Ultrasonic Sensor circuit poor electrical connection
Faulty Clearance Warning ECU Assembly

How to Fix the DTC C1AE9 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 C1AE9 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 C1AE9 Lexus code?

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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 C1AE9 Lexus Code

1. What are the common symptoms of OBDII code C1AE9 in a Lexus related to the Ultrasonic Sensor Rear Right Corner Sensor?

- Common symptoms include issues with the rear right corner parking assist system, such as inaccurate distance readings or complete failure of the sensor.

2. What can cause the OBDII code C1AE9 to trigger in a Lexus Ultrasonic Sensor Rear Right Corner Sensor?

- The code may be triggered by a faulty ultrasonic sensor, damaged wiring, or issues with the sensor's calibration.

3. How can I diagnose the cause of OBDII code C1AE9 in my Lexus related to the Ultrasonic Sensor Rear Right Corner Sensor?

- Diagnosis typically involves visually inspecting the sensor and surrounding wiring, checking for any physical damage, and using diagnostic tools to test the sensor's functionality.

4. Are there any simple repair tips for fixing OBDII code C1AE9 in a Lexus Ultrasonic Sensor Rear Right Corner Sensor?

- Basic repair tips include checking and cleaning the sensor and connectors, ensuring proper alignment and mounting, and resetting the sensor system if possible.

5. Can I drive my Lexus with the OBDII code C1AE9 related to the Ultrasonic Sensor Rear Right Corner Sensor?

- It is generally safe to drive the vehicle with this code, but the parking assist system may not function properly, leading to potential difficulties in parking or navigating tight spaces.

6. How much does it typically cost to repair OBDII code C1AE9 in a Lexus Ultrasonic Sensor Rear Right Corner Sensor?

- The cost of repair can vary depending on the exact issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Is it possible to reset or clear the OBDII code C1AE9 in a Lexus related to the Ultrasonic Sensor Rear Right Corner Sensor?

- Resetting the code may temporarily clear the warning light, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

8. Can extreme weather conditions affect the performance of the Ultrasonic Sensor Rear Right Corner Sensor in a Lexus?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can impact the sensor's performance and may lead to false readings or sensor failure.

9. Are there any preventive maintenance measures I can take to avoid OBDII code C1AE9 in my Lexus Ultrasonic Sensor Rear Right Corner Sensor?

- Regularly inspecting the sensors, keeping them clean, and ensuring proper alignment and mounting can help prevent issues that may trigger the code.

10. Will replacing the Ultrasonic Sensor Rear Right Corner Sensor in a Lexus fix the OBDII code C1AE9 issue?

- In many cases, replacing the faulty sensor can resolve the code C1AE9, but it is important to properly diagnose the issue to ensure the correct repair.