What causes B1276 on a Honda?

Faulty headlight switch in the parking position Open or short in the parking position circuit Poor contact in the headlight switch MICU parking input at fault Corroded or loose combination switch connector pins

How do I fix B1276 on a Honda?

Scan the MICU and note the parking position fault Test the headlight switch in the parking position Backprobe the parking signal at the MICU Check the parking position wiring for an open or short Replace the headlight switch if the parking contact tests bad Clear the code and retest

B1276 The MICU saw a fault in the headlight switch parking position circuit

Q: What does B1276 mean on a Honda?

B1276. The MICU saw a fault in the headlight switch parking position circuit. The marker and tail lights may not come on in that position. Applies to Honda and Acura models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Honda and Acura models that use this code

What does B1276 mean on a Honda?

B1276. The MICU saw a fault in the headlight switch parking position circuit. The marker and tail lights may not come on in that position. This Honda-enhanced code applies to Honda and Acura models that use this code.

Common causes of B1276

Faulty headlight switch in the parking position
Open or short in the parking position circuit
Poor contact in the headlight switch
MICU parking input at fault
Corroded or loose combination switch connector pins

How to fix B1276

Scan the MICU and note the parking position fault
Test the headlight switch in the parking position
Backprobe the parking signal at the MICU
Check the parking position wiring for an open or short
Replace the headlight switch if the parking contact tests bad
Clear the code and retest

Sources and review

Last updated 2026-10-10.