B2846 Code - Driver Blind Spot Warning Light Control Circuit Low
Quick Answer
When the Driver Blind Spot Indicator circuit senses that the voltage is below 4.0 volts for over 155 ms., this code will set. Common causes include Faulty Driver Mirror Assembly, Driver Mirror harness is open or shorted, Driver Mirror 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
- B2846 indicates Driver Blind Spot Warning Light Control Circuit Low.
- Common causes
- Common causes include Faulty Driver Mirror Assembly, Driver Mirror harness is open or shorted, Driver Mirror 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 B2846 Description
What are the Possible Causes of the DTC B2846?
- Faulty Driver Mirror Assembly
- Driver Mirror harness is open or shorted
- Driver Mirror circuit poor electrical connection
- Faulty Driver Door Module (DDM)
How to Fix the DTC B2846?
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 B2846 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
- B2846 Chrysler — Driver Blind Spot Warning Light Control Circuit Low
- B2846 Dodge — Driver Blind Spot Warning Light Control Circuit Low
- B2846 Jeep — Driver Blind Spot Warning Light Control Circuit Low
- B2846 RAM — Driver Blind Spot Warning Light Control Circuit Low
Frequently Asked Questions about B2846 Code
1. What does the OBDII code B2846 mean?
B2846 indicates a low voltage issue in the driver’s blind spot warning light control circuit, which is part of the blind spot monitoring system.
2. What are the common symptoms of code B2846?
Symptoms include the blind spot warning light not functioning, the warning system being disabled, or a dashboard warning light indicating a system fault.
3. What causes the B2846 code to appear?
Common causes include a faulty blind spot warning light, damaged wiring or connectors in the circuit, or a malfunctioning control module.
4. Can I still drive my car with code B2846?
Yes, but the blind spot monitoring system may not work, reducing your awareness of vehicles in your blind spot, which could increase the risk of accidents.
5. How do I diagnose code B2846?
Start by inspecting the wiring and connectors for damage or corrosion, then test the blind spot warning light for defects, and check the control module for functionality.
6. How can I fix code B2846?
Repairs may involve replacing a damaged blind spot warning light, repairing or replacing faulty wiring, or reprogramming or replacing the control module.
7. Is code B2846 specific to certain car brands?
No, this code is a generic OBDII code, but the exact troubleshooting and repair steps may vary between manufacturers.
8. How much does it cost to repair a B2846 code?
The cost depends on the issue but may range from $50 for a wiring repair to $500 or more for a replacement control module.
9. Can a dead battery cause code B2846?
A weak or dead battery can cause voltage-related issues, possibly triggering the B2846 code, but this is less common.
10. Do I need special tools to fix code B2846?
While a diagnostic scan tool is essential for reading and clearing the code, you may also need a multimeter to test voltage and continuity in the circuit.
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