B0093
B0093: Body Control Module (BCM) - Exterior Lighting Circuit Malfunction
📖 What Does B0093 Mean?
The Body Control Module (BCM) has detected a malfunction in the exterior lighting circuit, which may include issues with the headlights, taillights, or turn signals.
Symptoms
Dim or inoperative exterior lights, faulty turn signal indicators, or intermittent lighting issues.
Common Causes
Faulty BCM, wiring damage, corroded connections, or a malfunctioning exterior light module.
Possible Solutions
1. Check and clean all exterior light connections and wiring. 2. Replace the BCM if faulty. 3. Inspect and replace the exterior light module if necessary. 4. Check and repair any wiring damage.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about B0093
How serious is B0093?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with B0093?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix B0093?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with B0093
Airbag System Malfunction (B0000)
Body System Code B0001: Climate Control Malfunction
Body System Code B0002: Door Locks Malfunction
Body System Code B0003: Windows
Seat Position Sensor Malfunction
Body System Code B0005: Lighting 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