B16B1 Code - Left Stop Lamp Control Circuit High
Quick Answer
The Body Control Module (BCM) receives a hardwired brake signal from the Anti-lock Brake System (ABS) module indicating that the Brake Pedal is applied. Common causes include Faulty Left Stop Lamp, Left Stop Lamp harness is open or shorted, Left Stop Lamp circuit poor electrical connection. 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
- B16B1 indicates Left Stop Lamp Control Circuit High.
- Common causes
- Common causes include Faulty Left Stop Lamp, Left Stop Lamp harness is open or shorted, Left Stop Lamp circuit poor electrical connection.
- 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 B16B1 Description
What are the Possible Causes of the DTC B16B1?
- Faulty Left Stop Lamp
- Left Stop Lamp harness is open or shorted
- Left Stop Lamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B16B1?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B16B1 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
- B16B1 Chrysler — Left Stop Lamp Control Circuit High
- B16B1 Dodge — Left Stop Lamp Control Circuit High
- B16B1 Jeep — Left Stop Lamp Control Circuit High
- B16B1 RAM — Left Stop Lamp Control Circuit High
Frequently Asked Questions about B16B1 Code
1. What does OBDII code B16B1 mean?
Code B16B1 indicates that the left stop lamp control circuit has a high voltage issue, often caused by a fault in the wiring, bulb, or control module.
2. What are the common symptoms of code B16B1?
Symptoms include the left brake light not functioning, a dashboard warning light, or intermittent operation of the left stop lamp.
3. What causes code B16B1?
Common causes include a faulty stop lamp bulb, corroded or damaged wiring, a malfunctioning stop lamp control module, or a poor ground connection.
4. Can I drive with code B16B1 active?
While the vehicle may still be drivable, driving with a malfunctioning brake light is unsafe and could lead to a traffic citation or accident.
5. How can I diagnose the B16B1 code?
Start by inspecting the left stop lamp bulb and socket, check for damaged wiring or corroded connections, and use a multimeter to test for abnormal voltage in the circuit.
6. How do I fix code B16B1?
Repairs may include replacing a burnt-out bulb, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the stop lamp control module if necessary.
7. Can a blown fuse cause code B16B1?
It’s unlikely, as this code specifically indicates high voltage in the circuit, but checking the fuse is still a good step in troubleshooting electrical issues.
8. How much does it cost to fix code B16B1?
The cost varies depending on the issue but may range from $10 for a new bulb to $150 or more if wiring or the control module needs replacement.
9. Can a faulty stop lamp switch trigger code B16B1?
While rare, a malfunctioning stop lamp switch could contribute to circuit issues and should be tested during diagnosis.
10. What tools are needed to fix code B16B1?
Basic tools include a multimeter, replacement bulbs, wire strippers, and potentially a diagnostic scanner to clear the code after repairs.
Discuss the causes and fixes for B16B1 OBDII Code
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