OBD-II CODE
Medium
B0093
B0093: Body Control Module (BCM) - Exterior Lighting Circuit Malfunction
Est. Repair Cost
$100 - $500
Difficulty
3/5
Repair Time
1-2 hours
🩺 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.
Doctor's Orders
🛠️ How to Fix B0093
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.
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