B2A3A
Puddle Lamp Output Circuit Short To Ground
B2A3A is an OBD-II diagnostic trouble code meaning: Puddle Lamp Output Circuit Short To Ground. Common causes: short circuit in door harness wiring, damage to the wire insulation in the corrugation of the doorway. Estimated repair cost: $6–56.
Symptoms
- The door sill light does not work when the door is opened.
- The lamp is constantly on regardless of the door position
- The malfunction indicator on the dashboard is on
- Error code persists after reset
- The fuse blows periodically
Causes
- Short circuit in door harness wiring
- Damage to the wire insulation in the corrugation of the doorway
- Malfunction of the threshold lamp
- Lamp connector oxidation
- BCM damage
How to Fix
- Read error codes and determine which door is involved
- Inspect the wiring harness in the corrugation between the body and the door
- Measure the resistance between the lamp wire and ground (without a connected lamp)
- Check the lamp itself for a short circuit
- Replace damaged wiring or lamp
- Reset codes and check operation
Related codes
FAQ
What does the B2A3A code mean?
B2A3A is an OBD-II diagnostic trouble code that indicates: Puddle Lamp Output Circuit Short To Ground
What causes a B2A3A error code?
The most common causes of B2A3A include: Short circuit in door harness wiring; Damage to the wire insulation in the corrugation of the doorway; Malfunction of the threshold lamp; Lamp connector oxidation.
How do I fix a B2A3A diagnostic trouble code?
To fix B2A3A: Read error codes and determine which door is involved. Inspect the wiring harness in the corrugation between the body and the door. Measure the resistance between the lamp wire and ground (without a connected lamp). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2A3A?
Do not drive — repair immediately
How much does it cost to fix B2A3A?
The estimated repair cost for B2A3A is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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