Rear Right Turn Signal Circuit Malfunction
What does B0035 mean?
The B0035 code means the vehicle's onboard diagnostic system has detected: Rear Right Turn Signal Circuit Malfunction. This is a moderate severity code.
Common Symptoms
- Rear right turn signal not working
- Fast blink rate when signaling right
- Right rear signal stays on constantly
- Dashboard right arrow blinks rapidly
- Hazard flasher right side inoperative
Probable Causes (Ranked by Likelihood)
- Burned out rear right turn signal bulb Very High
- Corroded or damaged bulb socket High
- Wiring break in right rear signal circuit Moderate
- Body control module output failure Low
Step-by-Step Diagnostic Procedure
-
Check rear right turn signal bulb visually
-
Inspect bulb socket for corrosion or heat damage
-
Measure voltage at bulb socket during turn signal activation
-
Trace wiring from socket back toward body control module
-
Swap known good bulb to confirm socket function
Frequently Asked Questions
How do I access the rear turn signal bulb?
On most vehicles, you can access the rear bulbs through the trunk by removing the tail light trim cover, or by removing exterior screws on the tail light housing and pulling the assembly out.
Could this be a fuse issue?
It is possible but less common. If both rear turn signals are out, check the fuse. If only one side is out, the bulb or socket is the more likely cause.
What type of bulb do I need?
Most vehicles use a standard 3157 or 7440 bulb for rear turn signals. Check your owner's manual or the existing bulb number stamped on its base to get the correct replacement.