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B1236 RAM Code - PTS Sensor 9 Circuit Low

Quick Answer

The B1236 RAM diagnostic trouble code (DTC) refers to an issue with the PTS (Park Assist) sensor 9 circuit being detected as low. Common causes include Damaged wiring or connectors in the PTS sensor 9 circuit, Faulty PTS sensor 9, Malfunctioning control module for the park 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
B1236 RAM indicates PTS Sensor 9 Circuit Low.
Common causes
Common causes include Damaged wiring or connectors in the PTS sensor 9 circuit, Faulty PTS sensor 9, Malfunctioning control module for the park 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 B1236 RAM Description

The B1236 RAM diagnostic trouble code (DTC) refers to an issue with the PTS (Park Assist) sensor 9 circuit being detected as low. This code typically indicates that there is a problem with the sensor circuit that is responsible for detecting obstacles or objects around the vehicle when parking or maneuvering in tight spaces. The PTS sensor 9 is one of the sensors that help the vehicle's parking assist system function properly.

OBDII Code B1236 RAM - PTS Sensor 9 Circuit Low
B1236 RAM Code - PTS Sensor 9 Circuit Low

Common Causes of B1236 RAM

  1. Damaged wiring or connectors in the PTS sensor 9 circuit.
  2. Faulty PTS sensor 9.
  3. Malfunctioning control module for the park assist system.
  4. Corrosion or debris affecting the sensor's performance.
  5. Electrical issues within the sensor circuit.

Symptoms of B1236 RAM

  1. Park assist system not functioning properly or disabled.
  2. Inaccurate or erratic readings from the PTS sensor 9.
  3. Warning lights related to the park assist system illuminated on the dashboard.
  4. Difficulty parking or maneuvering in tight spaces.

How to Fix B1236 RAM

  1. Begin by conducting a thorough visual inspection of the PTS sensor 9 circuit, looking for any damaged wiring or connectors. Repair or replace any components as needed.
  2. Test the PTS sensor 9 using a multimeter to check for proper functionality. Replace the sensor if it fails the test.
  3. Inspect the control module for the park assist system to ensure it is functioning correctly. Replace the module if necessary.
  4. Clear the DTC from the vehicle's computer using a diagnostic scan tool after completing the repairs.
  5. Test the park assist system to verify that the issue has been resolved and that the sensor is providing accurate readings.

Cost to Fix B1236 RAM

The typical repair costs for addressing the B1236 RAM code related to the PTS Sensor 9 Circuit Low can vary depending on the specific cause of the issue and the parts and labor required for the repair. In general, the cost of replacing a faulty sensor or repairing damaged wiring could range from $150 to $400, including parts and labor. However, if the control module needs to be replaced, the cost could be higher, potentially ranging from $300 to $800 or more.

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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 B1236 RAM Code

1. What does the OBDII code B1236 indicate?

The code B1236 indicates a fault in the "PTS Sensor 9 Circuit Low," which usually signifies that the sensor circuit has unusually low voltage.

2. What is the PTS Sensor 9 referred to in the B1236 code?

PTS stands for Passenger Temperature Sensor, and Sensor 9 refers to a specific sensor within the vehicle's climate control system that monitors the temperature.

3. What are common symptoms of the B1236 code?

Common symptoms include improper functioning of the climate control system, the interior of the vehicle not reaching desired temperatures, or the climate control system only blowing cold or hot air regardless of settings.

4. What might cause the B1236 code to be triggered?

Causes can include a faulty PTS Sensor 9, wiring issues like shorts or frays in the circuit, or problems with the climate control unit itself.

5. How can I diagnose the B1236 code?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors for damage, and testing the PTS Sensor 9 with a multimeter to check for proper voltage and resistance.

6. What steps are involved in repairing the B1236 code?

Repair may involve replacing the faulty PTS Sensor 9, repairing or replacing damaged wiring or connectors, or potentially replacing the entire climate control unit if it is found to be defective.

7. Is it safe to drive a vehicle with the B1236 code?

While you can still drive the vehicle, the interior may not be as comfortable due to issues with temperature regulation. If the climate control is vital for driving conditions, you should address the issue promptly.

8. Can the B1236 code affect the vehicle's performance?

The B1236 code primarily affects comfort and does not typically impact the engine performance or drivability. However, electrical issues should not be ignored as they can sometimes lead to more serious problems.

9. What tools are needed to resolve the B1236 code?

Tools needed may include an OBDII scanner, a digital multimeter for electrical testing, and basic hand tools for accessing and replacing the sensor or wiring.

10. How often does the B1236 code occur in vehicles?

The occurrence of code B1236 can vary widely depending on the vehicle make, model, and the condition of the climate control system. It is more common in older or high-mileage vehicles where sensor degradation or wiring issues are more likely.

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