The B1371 code indicates a potential issue with the Illuminated Entry Relay in a vehicle.
Symptoms may include the entry lights not working as intended or not turning on at all.
The code is typically triggered when the relay fails to meet factory specifications, which can be caused by a faulty relay, a damaged relay harness, or poor electrical connections.
To fix the issue, it is important to visually inspect the wiring harness and connectors for any damage, and to check for broken or corroded pins.
Seeking professional assistance is recommended for proper diagnosis and prompt resolution.
What does it mean
The code B1371 indicates a malfunction in the Illuminated Entry Relay, monitored by the Body Control Module (BCM). It's commonly misdiagnosed, leading to unnecessary repairs. While it primarily affects the illuminated entry feature, it's crucial to diagnose and address the issue to prevent potential safety concerns in the vehicle's electrical system. Consult a professional technician for accurate diagnosis and repair.
Additional details:
The B1371 code specifically points to a problem with the Illuminated Entry Relay. The illuminated entry feature refers to the lights that turn on when you unlock or open the vehicle. While this code does not directly impact safety, it's important to address it correctly to avoid potential safety issues that may arise from other electrical malfunctions.
Misdiagnosis often occurs with this code, leading to unnecessary replacements of the BCM or wiring harness. To accurately diagnose and repair the issue, it is recommended to seek assistance from a professional technician who can use specialized diagnostic tools to pinpoint the exact cause of the problem. They will then be able to repair or replace the faulty component, ensuring the proper functioning of the illuminated entry relay and maintaining the overall safety of the vehicle.
what are the symptoms
The B1371 code is associated with common symptoms like the Engine Light or Service Engine Soon Warning Light turning on. These symptoms indicate a problem with the Illuminated Entry Relay, which is monitored by the Body Control Module (BCM). When the Illuminated Entry Relay fails to meet factory specifications, the B1371 code is triggered.
The B1371 code itself does not directly affect the performance of the vehicle. However, it is important to address this issue promptly to prevent any further problems.
While the B1371 code does not cause other electrical issues, there might be additional electrical problems present in the vehicle. To ensure there are no other issues, it is recommended to thoroughly inspect the wiring harness and connectors.
What are the causes
The B1371 code can be caused by a faulty Illuminated Entry Relay, problems with the wiring harness, or poor electrical connections.
Here are some points to consider in understanding the causes of DTC B1371:
- Faulty Illuminated Entry Relay: If the relay is not working properly, it can trigger the B1371 code. This could be due to internal component failure or normal wear and tear over time.
- Issues with the Wiring Harness: Problems with the wiring harness can result in an open or short circuit, disrupting the relay's functioning and causing the code to appear.
- Poor Electrical Connection: If there is a loose or corroded electrical connection in the Illuminated Entry Relay circuit, it can cause voltage irregularities, leading to the B1371 code.
During the diagnosis of DTC B1371, common mistakes include overlooking loose connections, not thoroughly inspecting the wiring harness, and failing to visually inspect the relay itself.
It is important to carefully examine all potential causes to accurately diagnose and resolve the issue.
What Tools are Needed to diagnose
To diagnose the B1371 code accurately, professionals require specific tools. These tools are necessary to identify and address the underlying issues effectively. Here are the tools needed for diagnosis:
- Diagnostic scanner: A professional diagnostic scanner is necessary to retrieve the B1371 code from the vehicle's onboard computer. This tool provides detailed information about the code and helps pinpoint the specific issue.
- Multimeter: A multimeter is used to test the voltage and continuity in the illuminated entry relay circuit. It helps determine if the relay is functioning properly or if there is an open or shorted circuit.
- Wiring diagram: A wiring diagram for the vehicle's electrical system is essential to understand the circuit layout and locate the illuminated entry relay. It helps visually inspect the wiring harness and connectors for any damage or poor connections.
Misdiagnosis of the B1371 code can occur when the illuminated entry relay is replaced without proper testing. Therefore, it is crucial to follow the correct diagnostic procedure to avoid unnecessary repairs.
How to fix Step by Step
Step 1: Start by visually inspecting the wiring harnesses and connectors for any signs of damage. Look for broken, bent, or corroded connector pins, as these can cause poor electrical connections.
Step 2: Conduct a thorough visual inspection of the illuminated entry relay and its wiring harness, checking for any visible faults.
Step 3: If no issues are found during the visual inspection, use specialized tools, such as a multimeter, to test the relay and its circuit.
Step 4: Seek professional assistance if needed to ensure accurate diagnosis and repair.
What are the Common Diagnosis Mistakes
Common Diagnosis Mistakes to Avoid
One common mistake when diagnosing the B1371 code is not considering potential problems with the wiring harness and connectors. These parts are important for the proper functioning of the Illuminated Entry Relay, which is monitored by the Body Control Module (BCM). Neglecting to thoroughly inspect the wiring harness and connectors can lead to incorrect diagnoses and unnecessary repairs.
To prevent this error, technicians should follow these steps:
- Visual inspection: Carefully check the wiring harness and connectors for any signs of damage, such as frayed wires or loose connections.
- Component testing: Test the BCM to ensure it is working properly. A faulty BCM is often mistakenly identified as the cause of the B1371 code.
- Verify door switch functionality: Faulty door switches can also trigger the B1371 code, so it is important to test and inspect these switches during the diagnostic process.
What is the Repair Cost
The repair cost for the B1371 code can vary depending on factors such as location, vehicle make and model, and engine type. It is important to consider the labor involved, which typically ranges from $75 to $150 per hour. Additionally, the cost of parts and materials should be taken into account.
Seek professional assistance for an accurate estimate.
Can I drive safely with this code?
Driving safely with the B1371 code is not recommended.
The code indicates a fault in the Illuminated Entry Relay, affecting the interior lights.
While it may not directly impact driving performance, it can compromise visibility and control, especially at night or when entering/exiting the vehicle.
Promptly seek professional assistance to ensure safe driving.
Conclusion
In conclusion, the B1371 code indicates a potential issue with the Illuminated Entry Relay in a vehicle. It is important to address this code promptly to prevent further damage and potential safety hazards.
Professional assistance may be required for proper diagnosis and repair. The cost of addressing this code may vary depending on various factors.
It is not recommended to drive with this code as it may result in further complications.