By The B1337 code is a diagnostic trouble code associated with issues related to the right rear door of a vehicle. It can be caused by a faulty door ajar right rear switch, an open or shorted switch harness, or a poor electrical connection in the switch circuit.
Other potential causes include a faulty body control module or a short circuit to the battery in the right rear door circuit.
Symptoms of this code may include difficulty opening or closing the right rear door, malfunctioning door locks, or interior lights not turning on or off properly.
To fix the issue, it is recommended to inspect and repair any faulty switches, harnesses, or electrical connections. If necessary, the body control module may need to be replaced, and any short circuits should be repaired.
What does it mean
The B1337 code indicates a right rear door circuit malfunction, specifically a short circuit to the battery. Common causes include a faulty Door Ajar Right Rear Switch, damaged wiring harness, or poor electrical connection.
Inspect the harness, connectors, and pins for damage or corrosion. Mistakes in diagnosis include overlooking loose connections.
what are the symptoms
The common symptoms of the B1337 code are the engine light turning on, along with other warning lights. You may also experience issues with the door ajar indicator, power door locks, and other electrical components. Specifically, a faulty door ajar right rear switch can cause the engine light to illuminate, indicating a problem with the switch. Other warning lights may also come on, signaling an issue with the right rear door.
The door ajar indicator may not work correctly, leading to inaccurate readings. This can affect the power door locks, making it difficult to lock or unlock the right rear door. Additionally, other electrical components may malfunction or stop working altogether.
It's crucial to address these symptoms promptly to prevent further damage to your vehicle. Ignoring the B1337 code and continuing to drive can result in more significant electrical problems, so it's best to avoid doing so.
What are the causes
Possible causes of the B1337 code are:
- Faulty right rear door switch: If the switch in the right rear door is not working properly, it can trigger the B1337 code.
- Damaged or shorted wiring harness: If the wiring harness for the door switch is damaged or has a short circuit, it can cause the B1337 code.
- Loose or corroded electrical connection: A loose or corroded connection in the switch circuit can lead to the B1337 code.
- Faulty Body Control Module (BCM): The BCM, which controls various electrical functions in the vehicle, can be faulty and trigger the B1337 code.
- Short circuit between the right rear door circuit and the battery: If there is a short circuit between the right rear door circuit and the battery, it can result in the B1337 code.
Common mistakes when diagnosing the B1337 code include overlooking simple electrical connection issues, not thoroughly inspecting the wiring harness, or failing to check for a faulty BCM.
It is important to conduct a comprehensive diagnosis to accurately identify and resolve the underlying cause of the B1337 code.
What Tools are Needed to diagnose
To diagnose the B1337 code, you will need specific diagnostic tools. Here are the tools required for diagnosing the B1337 code:
- OBD-II Scanner: This tool is used to retrieve the B1337 code from the vehicle's onboard computer system. It connects to the diagnostic port of the vehicle and provides information about the code and any related codes.
- Multimeter: A multimeter is necessary for testing the electrical connections and components associated with the B1337 code. It can measure voltage, resistance, and continuity, which helps identify any problems with the door ajar right rear switch or its circuit.
- Wiring Diagrams: Proper diagnosis of the B1337 code necessitates access to the vehicle's wiring diagrams. These diagrams contain the essential information needed to trace the circuit and locate any potential faults or open/short circuits.
To perform an accurate diagnosis of the B1337 code, follow these steps:
- Use an OBD-II scanner to retrieve the code.
- Employ a multimeter to test the door ajar right rear switch and its circuit.
- Lastly, refer to the vehicle's wiring diagrams to identify any wiring issues or faulty components.
How to fix Step by Step
Step 1: Begin by visually inspecting the wiring harness and connectors related to the Door Ajar Right Rear Switch. Look for any signs of damage, such as frayed wires or loose connections.
Step 2: Check for broken, bent, pushed out, or corroded connector pins. These can affect the electrical connection and cause the B1337 code to appear.
Step 3: If any damaged components or poor electrical connections are found, perform the necessary repairs or replacements. This may involve repairing the wiring, replacing the switch, or addressing any other issues that are causing the code.
To prevent the B1337 code from recurring, it is recommended to regularly inspect the wiring harness and connectors for any signs of damage. Additionally, ensuring proper installation and maintenance of electrical components can help prevent future issues.
What are the Common Diagnosis Mistakes
Common diagnosis mistakes for the B1337 code include:
- Not checking for damaged wiring harnesses and connectors related to the Door Ajar Right Rear Switch.
- Not inspecting connector pins for breakage or corrosion.
- Not addressing any other potential issues that may be causing the code to appear.
It is important to carefully inspect the wiring harnesses and connectors for damage or wear, as they can often be the main cause of the problem. Additionally, checking for broken or corroded connector pins is crucial, as this can result in poor electrical connections and trigger the B1337 code. Lastly, it is essential to address any other potential issues that may contribute to the code, as simply resetting the code without addressing the underlying problem can lead to recurring issues.
Common misdiagnoses for the B1337 code are:
- Only focusing on the Door Ajar Right Rear Switch without checking for damaged wiring harnesses and connectors.
- Neglecting to thoroughly inspect all connector pins for breakage or corrosion.
- Assuming that resetting the code will fix the issue without addressing any other underlying problems.
Common misconceptions about the B1337 code are:
- Believing that the code only relates to the Door Ajar Right Rear Switch and not considering other potential causes.
- Assuming that the code is a minor issue that can be ignored or temporarily fixed without further investigation.
- Thinking that the code will not cause any other related symptoms or issues with the vehicle's electrical components.
What is the Repair Cost
The repair cost for the B1337 code can vary depending on factors such as location, vehicle make and model, and engine type. Labor rates typically range between $75 and $150 per hour. Additional costs may apply for parts and further repairs.
Regular inspection of wiring harness and connectors is recommended to prevent code recurrence.
Can I drive safely with this code?
Driving safely with the B1337 code is not recommended due to potential warning lights, malfunctioning door indicators, and issues with power door locks. This code indicates a problem with the right rear door ajar switch or its circuit.
Start by visually inspecting wiring and connectors for damage, and check the Body Control Module (BCM) for faults.
Professional consultation may be necessary for detailed diagnosis and repair.
Conclusion
In conclusion, the B1337 code is associated with issues related to the right rear door of a vehicle. It can be triggered by various factors such as a faulty door switch, open or shorted switch harness, poor electrical connection, or a faulty body control module.
Symptoms include illuminated warning lights, malfunctioning door indicators, and problems with power door locks.
Proper diagnosis and repairs should be performed to resolve the issue. The cost to fix this code can vary depending on various factors.
Samuel