B163A Code - Front Left Turn Lamp Control Circuit Short
Quick Answer
The Body Control Module (BCM) receives a communication network message from the Steering Column Control Module (SCCM) requesting turn signal lamp illumination. Common causes include Blown Front Left Park and Turn Signal Bulb, Faulty Front Left Turn Lamp, Front Left Turn Lamp harness is open or shorted. 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
- B163A indicates Front Left Turn Lamp Control Circuit Short.
- Common causes
- Common causes include Blown Front Left Park and Turn Signal Bulb, Faulty Front Left Turn Lamp, Front Left Turn Lamp harness is open or shorted.
- 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.
Code B163A Description
What are the Possible Causes of the DTC B163A?
- Blown Front Left Park and Turn Signal Bulb
- Faulty Front Left Turn Lamp
- Front Left Turn Lamp harness is open or shorted
- Front Left Turn Lamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B163A?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
B163A-11 FRONT LEFT TURN LAMP CONTROL CIRCUIT SHORT TO GROUND - PREMIUM
B163A-15 FRONT LEFT TURN LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN - BASE
B163A-15 FRONT LEFT TURN LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN - PREMIUM
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B163A code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B163A Chrysler — Front Left Turn Lamp Control Circuit Short
- B163A Dodge — Front Left Turn Lamp Control Circuit Short
- B163A Jeep — Front Left Turn Lamp Control Circuit Short
- B163A RAM — Front Left Turn Lamp Control Circuit Short
Frequently Asked Questions about B163A Code
1. What does the OBDII code B163A indicate?
The code B163A indicates a fault in the front left turn lamp control circuit, specifically a short circuit. This malfunction can affect the operation of the vehicle's left turn signal.
2. What are common symptoms of code B163A?
Symptoms include the front left turn signal not working, blinking faster than usual, or staying lit without blinking. There may also be a warning light on the dashboard indicating a problem with the exterior lighting.
3. What causes the B163A code to be triggered?
Potential causes include damaged wiring, a faulty front left turn signal bulb, issues with the turn signal relay, or problems with the turn signal switch or the body control module.
4. How can I diagnose the problem leading to code B163A?
Start by inspecting the front left turn signal bulb and socket for damage or corrosion. Check the wiring and connectors for shorts or frayed wires. If these components appear intact, further diagnostic with a multimeter and scanning tool might be necessary to check the relay, switch, and control module.
5. What steps should be taken to fix the B163A code?
Repair or replace any faulty wiring or connectors. If the bulb is defective or the socket is corroded, replace them. If the issue lies with the relay, switch, or module, these components may need replacement or reprogramming.
6. Is it safe to drive with the B163A code?
While it might not immediately affect vehicle drivability, driving without a functioning turn signal can be unsafe and is illegal in many areas, as it impairs your ability to communicate with other drivers.
7. How can I prevent future occurrences of the B163A code?
Regular maintenance and inspection of the vehicle’s lighting system can help prevent this issue. Ensure that all connections are secure and that there is no moisture or corrosion, which can lead to electrical failures.
8. What tools are needed to diagnose and repair the B163A code?
Basic tools include a multimeter for electrical testing, a scanning tool to read and clear the code, and a screwdriver or wrench set for accessing and replacing components. A wiring diagram for your specific vehicle can also be very helpful.
9. Can a faulty front left turn signal impact other vehicle systems?
Generally, the impact is limited to the lighting system; however, in vehicles where the body control module manages multiple functionalities, other systems might exhibit issues if the module is faulty.
10. What is the estimated cost to repair the B163A code?
The cost can vary widely based on the exact cause. Simple fixes like bulb replacement might be under $50, while wiring repairs or replacing electronic components like the body control module can cost several hundred dollars.
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