C0023 — Stop Lamp Control

Q: "Can I drive with this code?"

"It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon."

Q: "Will this code clear itself?"

"Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first."

Q: "How do I find the exact cause?"

"A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component."

What Does C0023 Mean?

C0023 is a diagnostic trouble code indicating: Stop Lamp Control. This code relates to the chassis system. It has been reported in NHTSA complaints across 2 different vehicle models.

Common Causes

🔍 Sensor or control module malfunction

C0023 Reports by Year

2024

1

2022

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"Driving down highway at highway speed and car shot 52 failure codes. Car lost power and crawled to side of road. Nearly got rear ended multiple times trying to remove vehicle from roadway. Engine permanent codes U0111 U012D U0110 U12A5 U1206 U1205 Anti lock brakes permanent codes U040168 CAN "
— Honda Insight owner, 12/09/2022

"When driving, the car will suddenly slow down and automatically will apply brake. Then, the warning light will pop on the dashboard. When I run the diagnostic, it shows that the car has C0023-12: Brake Diag Circuit on Failure."
— Honda Accord owner, 11/01/2024

Source: NHTSA Complaints Database

Most Reported Vehicles for C0023

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	HONDA ACCORD
2	HONDA INSIGHT

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 Test the relevant sensor(s) with a multimeter before replacing
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

C0023: Stop Lamp Control