C1238 Scion Code - Foreign Object Attached on Tip of Right Rear Sensor
Quick Answer
The speed sensor detects wheel speed and sends the appropriate signals to the ECU. Common causes include Faulty Right Rear Speed Sensor, Right Rear Speed Sensor rotor, Sensor installation. 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
- C1238 Scion indicates Foreign Object Attached on Tip of Right Rear Sensor.
- Common causes
- Common causes include Faulty Right Rear Speed Sensor, Right Rear Speed Sensor rotor, Sensor installation.
- 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.
Code C1238 Scion Description
When the rotors rotate, the magnetic field emitted by the permanent magnet in the speed sensor generates AC voltage. Since the frequency of this AC voltage changes in direct proportion to the speed of the rotor, the frequency is used by the ECU to detect the speed of each wheel.
What are the Possible Causes of the DTC C1238 Scion?
- Faulty Right Rear Speed Sensor
- Right Rear Speed Sensor rotor
- Sensor installation
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C1238 Scion?
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 C1238 Scion 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.
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Frequently Asked Questions about C1238 Scion Code
1. What are the common symptoms of OBDII code C1238 in a Scion related to a foreign object attached to the tip of the right rear sensor?
- Common symptoms include erratic braking behavior, ABS system malfunctions, and the illumination of the ABS warning light on the dashboard.
2. What could cause the OBDII code C1238 in a Scion due to a foreign object attached to the right rear sensor?
- The most likely cause is a physical obstruction, such as debris or a foreign object, interfering with the proper operation of the right rear ABS sensor.
3. How can I diagnose if there is a foreign object attached to the tip of the right rear sensor triggering code C1238 in my Scion?
- A visual inspection of the right rear sensor and its surroundings can help identify any foreign objects or debris that may be causing the issue.
4. Are there any DIY repair tips for addressing the OBDII code C1238 Scion issue caused by a foreign object on the right rear sensor?
- If a foreign object is found, carefully remove it using appropriate tools or cleaning methods. Ensure the sensor tip is clean and unobstructed for proper operation.
5. Can driving with the OBDII code C1238 Scion problem related to a foreign object on the right rear sensor cause further damage?
- Continuing to drive with this issue can potentially lead to further ABS system malfunctions, compromised braking performance, and safety concerns. It is recommended to address the problem promptly.
6. Is it safe to clear the OBDII code C1238 related to a foreign object on the right rear sensor in my Scion without fixing the underlying issue?
- Clearing the code without removing the foreign object or addressing the root cause may temporarily turn off the warning light but will not resolve the actual problem affecting the ABS system.
7. How much does it typically cost to repair the OBDII code C1238 in a Scion caused by a foreign object on the right rear sensor?
- The cost of repair can vary depending on the extent of the issue and whether professional assistance is needed. It may involve DIY cleaning or removal of the foreign object or sensor replacement by a mechanic.
8. Can extreme weather conditions contribute to triggering the OBDII code C1238 Scion issue related to a foreign object on the right rear sensor?
- Yes, extreme weather conditions such as heavy rain, snow, or mud can increase the likelihood of debris accumulation around the right rear sensor, potentially causing the problem.
9. How often should I inspect the ABS sensors in my Scion to prevent issues like the one indicated by the OBDII code C1238?
- Regular inspection during routine maintenance checks or whenever the ABS warning light illuminates is recommended to ensure the sensors are free from obstructions or foreign objects.
10. Is it possible for the OBDII code C1238 in a Scion due to a foreign object on the right rear sensor to recur after repair?
- If the root cause, such as debris accumulation, is not addressed or if similar conditions persist, there is a possibility of the issue reoccurring. Regular maintenance and cleanliness can help prevent this.
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