B1133
B1133: Body Control Module (BCM) - Exterior Lighting Circuit Malfunction
📖 What Does B1133 Mean?
Symptoms
- • Dim or inoperative exterior lights
- • faulty headlight aim
- • or warning lights on the dashboard.
Common Causes
- • Faulty exterior light bulbs
- • wiring or connector issues
- • BCM failure
- • or a problem with the lighting circuit relay.
Possible Solutions
Check and replace any faulty exterior light bulbs. Inspect and repair any damaged or corroded wiring or connectors. Update the BCM software if necessary. Replace the BCM if it's faulty.
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❓ Common Questions About B1133
Can I drive with code B1133?
You can drive for a short time, but should address code B1133 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B1133?
The estimated repair cost for code B1133 is between $50 and $200. 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
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with B1133
B1131: Power Window Circuit Malfunction
B1132: Seat Position Sensor Circuit Malfunction
B1134: Immobilizer System Malfunction
B1135: Audio System Malfunction
💡 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