The B1247 code signifies a problem in the turn signal system of a vehicle. It indicates that the turn lamp output does not meet the required specifications, as detected by the Body Control Module (BCM).
This can lead to warning lights being illuminated, malfunctioning turn signals, and rapid flashing of the remaining turn lamps to indicate a bulb outage.
To resolve this issue, it is essential to diagnose and repair any issues with the wiring harness, connectors, and components associated with the left rear turn indicator.
B1247 Code: Problem with the left rear turn indicator circuit
What does it mean
The B1247 code indicates a problem with the left rear turn indicator circuit.
It is important to promptly address this code to ensure proper turn signal functioning and vehicle safety.
Technicians should visually inspect wiring, connectors, and components, and repair any faults with the left rear turn indicator and the Body Control Module (BCM).
What are the symptoms
- Illuminated engine light or service engine soon warning light.
- Problems with turn signals (not working properly or flashing too quickly).
- Other warning lights illuminated on the dashboard.
- Potential electrical problems related to the turn signal system.
- Troubleshoot the turn signal issues.
- Inspect the wiring harness, connectors, and components.
- Check for faults with the Left Rear Turn Indicator.
- Check for faults with the Body Control Module (BCM).
What are the causes
There are a few possible reasons why you might encounter the B1247 code. These include:
- A problem with the left rear turn indicator.
- An issue with the wiring harness or connections in the left rear turn indicator circuit.
- Poor electrical connections in the left rear turn indicator.
- A faulty Body Control Module (BCM).
What Tools are Needed to diagnose
To diagnose the B1247 code, you will need specific diagnostic tools. The common tools for diagnosing the B1247 code include:
- Scan tool: This tool is used to retrieve the trouble codes stored in the vehicle’s onboard computer system. It provides helpful information about the specific issue causing the B1247 code.
- Multimeter: An essential tool for measuring electrical values like voltage, resistance, and continuity. It helps identify any electrical faults in the left rear turn indicator circuit.
- Wiring diagram: A visual representation of the electrical connections in the vehicle. It is used to trace and identify the wiring harnesses and connectors associated with the left rear turn indicator.
- Visual inspection tools: Tools like a flashlight and mirror are necessary for visually inspecting the wiring harnesses and connectors. They help in spotting any signs of damage or poor connections.
These tools are crucial for accurately diagnosing the B1247 code and determining the root cause of the issue.
How to fix Step by Step
Step 1: Start by visually inspecting the related wiring harness and connectors for any signs of damage, such as broken or corroded connector pins.
Step 2: Check the Left Rear Turn Indicator for any faults or malfunctions. If any issues are found, address them accordingly.
Step 3: Troubleshoot and repair any faults with the Body Control Module (BCM), as it plays a crucial role in the functioning of the turn signal system.
Step 4: Avoid common mistakes such as overlooking visual inspections or not thoroughly addressing issues with the Left Rear Turn Indicator or BCM.
Following these steps will help ensure an effective and accurate diagnosis and resolution of the B1247 code.
What are the Common Diagnosis Mistakes
Common Diagnosis Mistakes to Avoid: B1247 Code
One common mistake when diagnosing the B1247 code is not giving enough importance to visual inspections and neglecting any issues with the Left Rear Turn Indicator or BCM.
To prevent these diagnostic errors, here are some tips for troubleshooting the B1247 code:
- Perform a comprehensive visual inspection, checking for any visible damage or problems with the Left Rear Turn Indicator or its wiring harness.
- Pay close attention to the connectors and pins, looking for any signs of damage, corrosion, or weak electrical connections.
- Use a multimeter to test the continuity and resistance of the Left Rear Turn Indicator circuit. This will help identify any potential faults or open/short circuits.
- If needed, conduct diagnostic tests on the Body Control Module (BCM) to ensure it is functioning properly and addressing any faults related to the turn signal system.
What is the Repair Cost
The repair cost for B1247 code varies depending on factors like location, make, model, and engine type. Labor costs range from $75 to $150 per hour, with an average diagnosis time of 1.0 hour. Additional expenses may be incurred for parts and further repairs.
It’s important to address issues with the Left Rear Turn Indicator and troubleshoot and repair faults with the Body Control Module (BCM) to prevent DTC B1247 from recurring. Signs of a faulty BCM include Engine Light ON, malfunctioning turn signals, fast flashing of remaining turn lamps, and other electrical issues related to the turn signal system.
Can I drive safely with this code?
Driving with the B1247 code can be unsafe. It indicates a fault in the left rear turn indicator circuit, leading to malfunctioning turn signals and other warning lights.
Promptly addressing this issue is crucial for maintaining vehicle safety and allowing other drivers to anticipate your movements on the road.
Wrapping Up
The B1247 code indicates a problem with the turn signal system of a vehicle.
The symptoms include malfunctioning turn signals and fast flashing of the remaining turn lamp.
The causes can vary, but often involve issues with the Body Control Module or wiring harness.
Diagnosing and fixing the issue requires a thorough inspection and potential repairs to the related components.
It is important to address this issue promptly to ensure safe driving and proper functionality of the turn signals.