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B1238 RAM Code - PTS Sensor 9 Ring Time Too Short

Quick Answer

The B1238 RAM diagnostic trouble code (DTC) indicates that the PTS (Park Assist) sensor 9 ring time is too short. Common causes include Faulty PTS sensor 9, Wiring issues or a short circuit in the sensor circuit, Malfunctioning control module for the parking assist system. 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
B1238 RAM indicates PTS Sensor 9 Ring Time Too Short.
Common causes
Common causes include Faulty PTS sensor 9, Wiring issues or a short circuit in the sensor circuit, Malfunctioning control module for the parking assist system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1238 RAM Description

The B1238 RAM diagnostic trouble code (DTC) indicates that the PTS (Park Assist) sensor 9 ring time is too short. This code is typically found in vehicles equipped with parking assist systems that use ultrasonic sensors to detect objects around the vehicle when parking. The PTS sensor 9 is responsible for a specific area of coverage in the parking assist system. When the ring time is too short, it means that the sensor is not able to accurately detect objects within its designated range, potentially leading to issues with parking assistance functionality.

OBDII Code B1238 RAM - PTS Sensor 9 Ring Time Too Short
B1238 RAM Code - PTS Sensor 9 Ring Time Too Short

Common Causes of B1238 RAM

  1. Faulty PTS sensor 9.
  2. Wiring issues or a short circuit in the sensor circuit.
  3. Malfunctioning control module for the parking assist system.
  4. Physical damage to the sensor or its components.
  5. Software glitches or calibration errors in the parking assist system.

Symptoms of B1238 RAM

  1. Parking assist system not working or providing inaccurate readings.
  2. False alarms or warnings while parking.
  3. Difficulty detecting obstacles during parking maneuvers.
  4. Parking assist system turning off unexpectedly.

How to Fix B1238 RAM

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the DTC and pinpoint the faulty component.
  2. Inspect the PTS sensor 9 and its wiring for any visible damage or loose connections. Replace the sensor if necessary.
  3. Check the control module for the parking assist system for any faults or errors. Reset or reprogram the module as needed.
  4. Test the parking assist system after repairs are completed to ensure that the issue has been resolved.
  5. Clear the DTC from the vehicle's memory using the diagnostic scanner to reset the system and turn off the warning light.

Cost to Fix B1238 RAM

The typical repair costs for addressing a B1238 RAM code can vary depending on the specific cause of the issue and the parts or components that need to be replaced. On average, the repair for this type of problem can range from $200 to $500, including parts and labor. However, it is essential to note that the actual costs may differ based on the location of the repair shop, the vehicle's make and model, and the complexity of the repair. Additionally, diagnostic time and labor rates can impact the final cost, with rates typically ranging between $80 and $150 per hour. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for addressing this issue.

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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 B1238 RAM Code

1. What are the common symptoms of OBDII code B1238 RAM (PTS Sensor 9 Ring Time Too Short)?

The common symptoms include issues with the parking aid system, like inaccurate distance readings or the system not working at all.

2. What can cause the OBDII code B1238 RAM to trigger?

The code B1238 RAM is usually triggered when the Parking Aid Sensor 9 detects that the ring time is too short, indicating a problem with the sensor's operation.

3. How can I diagnose the cause of the OBDII code B1238 RAM?

Diagnosing the issue involves checking the wiring and connections to Parking Aid Sensor 9, inspecting the sensor for physical damage, and testing the sensor's functionality using a diagnostic tool.

4. What are some tips for repairing the OBDII code B1238 RAM?

Repairing the code B1238 RAM may involve replacing the faulty Parking Aid Sensor 9, repairing any damaged wiring, or recalibrating the parking aid system as per manufacturer's recommendations.

5. Can I drive my vehicle with the OBDII code B1238 RAM active?

It is generally safe to drive the vehicle with the code B1238 RAM active, but it is recommended to address the issue promptly to ensure the proper functioning of the parking aid system.

6. How much does it typically cost to repair the OBDII code B1238 RAM?

The cost of repair can vary depending on the underlying cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

7. Are there any DIY fixes for the OBDII code B1238 RAM?

DIY fixes for the code B1238 RAM may include checking and cleaning the sensor connections, but more complex repairs like sensor replacement are best left to professionals.

8. Is the OBDII code B1238 RAM a common issue in certain vehicle models?

The code B1238 RAM may be more common in vehicles equipped with parking aid systems and sensors, especially in models known for sensor-related issues.

9. How long does it take to repair the OBDII code B1238 RAM?

The repair time for the code B1238 RAM can vary depending on the severity of the issue and the availability of parts, but it typically takes a few hours to a day to complete.

10. Can the OBDII code B1238 RAM return after repair?

If the underlying cause of the issue is not properly addressed during repair, the code B1238 RAM may return. It is essential to diagnose the problem accurately and follow recommended repair procedures to prevent a recurrence.

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