C1239 Scion Code - Foreign Object Attached on Tip of Left Rear Sensor
Quick Answer
The speed sensor detects wheel speed and sends the appropriate signals to the ECU. Common causes include Faulty Left Rear Speed Sensor, Left 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
- C1239 Scion indicates Foreign Object Attached on Tip of Left Rear Sensor.
- Common causes
- Common causes include Faulty Left Rear Speed Sensor, Left 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 C1239 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 C1239 Scion?
- Faulty Left Rear Speed Sensor
- Left Rear Speed Sensor rotor
- Sensor installation
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C1239 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 C1239 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 C1239 Scion Code
1. What are the common symptoms of OBDII code C1239 in a Scion related to a foreign object attached to the tip of the left rear sensor?
The common symptoms include the ABS warning light coming on, potential loss of ABS functionality, and unusual braking behavior.
2. What could cause the OBDII code C1239 in a Scion indicating a foreign object on the left rear sensor tip?
The most likely cause is a physical obstruction, such as debris or a foreign object, interfering with the proper operation of the left rear sensor.
3. How can I diagnose if there is a foreign object attached to the left rear sensor causing code C1239 in my Scion?
Perform a visual inspection of the left rear sensor to check for any foreign objects or debris obstructing its tip. Cleaning the sensor may also help in identifying any attached objects.
4. Is it safe to drive my Scion with OBDII code C1239 due to a foreign object on the left rear sensor?
It is not recommended to drive the vehicle with this issue as it can affect the ABS system's functionality and compromise braking performance, leading to unsafe driving conditions.
5. Can I clear the OBDII code C1239 related to a foreign object on the left rear sensor tip in my Scion by simply removing the object?
Removing the foreign object may resolve the immediate cause of the code, but it is essential to perform a proper diagnosis to ensure there is no underlying damage to the sensor or ABS system.
6. Are there any DIY repair tips for fixing OBDII code C1239 in a Scion caused by a foreign object on the left rear sensor?
You can attempt to carefully remove any visible foreign objects from the left rear sensor tip. However, if the issue persists, it is recommended to seek professional assistance for a thorough inspection and repair.
7. What are the potential risks of ignoring OBDII code C1239 in a Scion triggered by a foreign object on the left rear sensor?
Ignoring this code can lead to compromised ABS functionality, which may result in reduced brake performance, longer stopping distances, and an increased risk of accidents.
8. Can weather conditions or road debris contribute to triggering OBDII code C1239 in a Scion due to a foreign object on the left rear sensor?
Yes, adverse weather conditions or driving on debris-filled roads can increase the likelihood of foreign objects becoming lodged on the left rear sensor, triggering the C1239 code.
9. How much does it typically cost to repair OBDII code C1239 in a Scion caused by a foreign object on the left rear sensor?
The cost of repair can vary depending on the extent of the damage and whether any components need replacement. It is advisable to consult a mechanic for an accurate assessment of repair costs.
10. Can OBDII code C1239 in a Scion be a recurring issue if foreign objects continue to attach to the left rear sensor?
Yes, if the root cause of foreign objects attaching to the left rear sensor is not addressed, the C1239 code may recur, leading to persistent ABS problems and safety concerns.
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