The B1339 code indicates a problem with the Chime Input Request circuit in the Body Control Module (BCM) of a vehicle. This means that the chime system is not working correctly and may have a circuit short to the battery.
It is important to address this code promptly as it can affect the functionality of the chime system and potentially cause electrical problems.
To fix this issue, it is recommended to seek professional help for diagnosis and repair.
What does it mean
The B1339 code indicates a circuit short to battery in the chime system. Ignoring this code can compromise vehicle safety by disabling important notifications and warnings.
Prompt attention is necessary to prevent accidents and ensure the safe operation of the vehicle.
what are the symptoms
What are the symptoms that may indicate the presence of the B1339 code in a vehicle?
- The Engine Light or Service Engine Soon Warning Light may turn on.
- Other warning lights related to the issue might also illuminate.
- The chime system may not function properly.
- Certain vehicle functionalities may be lost.
When the B1339 code is present in a vehicle, it can cause various symptoms. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light on the dashboard. Other warning lights may also light up to indicate a problem.
Another symptom is the malfunctioning of the chime system, which may result in the absence of audible alerts for different functions. Additionally, the B1339 code can lead to a loss of certain vehicle functionalities, affecting features like power windows, door locks, or interior lighting.
It is crucial to address these symptoms promptly to ensure the vehicle operates correctly and safely.
What are the causes
To determine the reasons behind the B1339 code, it is important to analyze the potential factors that can lead to this issue. Here are some possible causes to consider when accurately diagnosing the B1339 code:
- The Chime Input Request may be faulty.
- The Chime Input Request harness could be open or shorted.
- There might be a poor electrical connection in the Chime Input Request circuit.
- The Body Control Module (BCM) may be faulty.
When diagnosing the B1339 code, it is crucial to avoid common mistakes that can affect the accuracy of the diagnosis. These mistakes may include overlooking visual inspections of the related wiring harness and connectors, not checking for damaged components, or neglecting to inspect for broken, bent, pushed out, or corroded connector pins.
If necessary, it is advisable to seek professional assistance to ensure a thorough and precise diagnosis.
What Tools are Needed to diagnose
To properly diagnose the B1339 code and determine its causes, it is important to use the right tools for an accurate and thorough diagnosis. Below are some commonly used tools for diagnosing the B1339 code:
- OBD-II Scanner: This tool retrieves fault codes stored in the vehicle's computer system. It provides information about the specific code and helps identify the underlying problem.
- Multimeter: A multimeter measures voltage, resistance, and continuity in electrical circuits. It can be used to test the Chime Input Request circuit for any issues with open or shorted wires.
- Wiring Diagrams: These diagrams visually represent the vehicle's electrical circuits. They can help locate the Chime Input Request harness and identify potential problems.
- Technical Service Bulletins (TSBs): TSBs provide useful information from the manufacturer regarding known issues and recommended solutions. They can help interpret data from the diagnostic tools and guide the diagnosis process.
Interpreting the data from diagnostic tools for the B1339 code involves analyzing fault codes, conducting electrical tests, and comparing the results to known specifications. It requires a combination of technical knowledge, experience, and the appropriate diagnostic tools to accurately diagnose and resolve the issue.
How to fix Step by Step
Step 1: Use the appropriate diagnostic tools to carefully diagnose the issue associated with the B1339 code.
Step 2: Identify the circuit that is shorted to the battery in the Chime Input Request.
Step 3: Inspect the wiring and connections related to the chime system for any signs of damage or loose connections.
Step 4: If any damaged wiring or loose connections are found, repair or replace them as necessary.
Step 5: Test the chime system to ensure that the circuit short to battery issue has been resolved.
Step 6: If the issue persists, consult a professional technician or seek further assistance to diagnose and address the problem.
Step 7: Promptly address the B1339 code to prevent any potential electrical issues or malfunctions in the chime system.
Step 8: Take into consideration factors like location, make, model, and engine type to determine the cost of repair.
Step 9: Contact local repair shops to obtain estimates for the specific cost of diagnosis, parts, and further repairs.
Step 10: Proceed with the necessary repairs or replacements as indicated based on the diagnostic findings.
What are the Common Diagnosis Mistakes
Common diagnosis mistakes when dealing with the B1339 code can result in incorrect repairs and potential additional issues with the chime system. To ensure accurate repairs and prevent further problems, it is crucial to avoid these common diagnostic errors and misconceptions about the B1339 code.
Some of the common mistakes include:
- Misunderstanding the code as a faulty chime input request without examining other possible causes.
- Overlooking the visual inspection of the wiring harness and connectors for any physical damage.
- Failing to check for broken, bent, pushed out, or corroded connector pins.
- Not seeking professional assistance when necessary, especially if unfamiliar with the complexities of the chime system.
What is the Repair Cost
The repair cost for resolving the B1339 code varies depending on location, make, model, and engine type. Diagnosis labor typically ranges from 1.0 hour, with rates at most auto repair shops between $75 and $150 per hour. Additional costs may apply for parts and further repairs.
Seeking estimates from local repair shops is recommended for a more accurate understanding of the repair cost.
Can I drive safely with this code?
Driving with the B1339 code may impact the chime system and vehicle functionalities. Ignoring this code can lead to malfunctions in the chime system, loss of warning light functionality, and compromised safety features.
It is not recommended to drive with this code. Seek professional help for diagnosis and repair.
Conclusion
In conclusion, the B1339 code indicates a potential issue with the Chime Input Request circuit in a vehicle's BCM. This can result in various symptoms, such as warning light illuminations and malfunctions in the chime system.
It is crucial to address this code promptly to prevent further electrical issues. Seeking professional help to diagnose and repair the code is recommended.
The labor costs for diagnosing this code typically range from 1.0 hour, with additional charges for parts and further repairs.