B0837
B0837: Body Control Module (BCM) Lighting Circuit Malfunction
📖 What Does B0837 Mean?
Symptoms
- • Dim or inoperative exterior lights
- • flickering lights
- • or lights that do not turn off when the ignition is turned off
Common Causes
- • Faulty BCM
- • wiring damage
- • blown fuses
- • or a malfunctioning lighting relay
Possible Solutions
1. Check the BCM for any fault codes and clear them. 2. Inspect the wiring and connectors for damage or corrosion. 3. Replace any blown fuses. 4. Test the lighting relay and replace it if faulty. 5. Update the BCM software if necessary.
Fixing this on your car?
Get the exact oil type, fluid capacities, and torque specs for your specific vehicle before you start the repair.
❓ Common Questions About B0837
Can I drive with code B0837?
You can drive for a short time, but should address code B0837 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B0837?
The estimated repair cost for code B0837 is between $100 and $300. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
Recommended Tools
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Other codes that may appear with B0837
B0835: Power Window Regulator Circuit Malfunction
B0836: Seat Switch Circuit Malfunction
B0838: Body System Security Code
B0839: Audio System Fault
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system