Right turn signal circuit is open
What it means
B0529. Right turn signal circuit is open. The body control module cannot light the right turn indicator and the body warning light comes on.. This Chevy-enhanced code applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.
Findings, check these first
- Burned out right turn signal lamp bulb
- Open in the right turn signal lamp harness
- Corroded right turn signal bulb socket
- Loose right turn signal lamp connector
- Faulty right turn signal output in the body control module
Standard procedure
- Confirm the code with a scan tool
- Inspect the right turn signal bulb and socket for damage
- Test the right turn signal supply circuit for an open
- Command the right turn signal with the scan tool and watch the lamp
- Replace the right turn signal bulb only after circuit tests pass, then clear the code and retest
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Sources and review
Review: checked against the recorded source material.
- B0529 CHEVROLET Code: Meaning, Causes, and Symptoms | OBD2 Codes - OBD2 Codes
live reference page (obd2-codes.co)
Supports: CHEVROLET and GM-family meaning and likely causes for B0529
Fetched directly. B0529 reads "Right Turn Signal Circuit Open".
- Code B0529 meaning and causes | OBDII.pro
live reference page (obdii.pro)
Supports: independent corroboration of the GM meaning
Fetched directly. obdii.pro is a separate publisher and gives the GM meaning as: RH turn signal circuit open More details about the error B0529 and possible reasons for its occurrence.
Last updated 2026-10-10.
Report a correction for B0529. Include your vehicle, the issue and a source if you have one.