C0161 Code - Antilock Braking System Brake Switch Circuit
Quick Answer
When the brake pedal is applied, the Body Control Module (BCM) sends a serial data message to the Electronic Brake Control Module (EBCM) in reference to the brake pedal positions. Common causes include Faulty Brake Switch (Stop Lamp Switch), Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C0161 indicates Antilock Braking System Brake Switch Circuit.
- Common causes
- Common causes include Faulty Brake Switch (Stop Lamp Switch), Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C0161 Description
What are the Possible Causes of the DTC C0161?
- Faulty Brake Switch (Stop Lamp Switch)
- Brake Switch harness is open or shorted
- Brake Switch circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV)
How to Fix the DTC C0161?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0161 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C0161 code?
Need more information on how to fix the C0161 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C0161 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C0161 Buick — Antilock Braking System Brake Switch Circuit
- C0161 Cadillac — Antilock Braking System Brake Switch Circuit
- C0161 Chevrolet — Antilock Braking System Brake Switch Circuit
- C0161 GMC — Antilock Braking System Brake Switch Circuit
- C0161 Pontiac — Antilock Braking System Brake Switch Circuit
- C0161 Saturn — Antilock Braking System Brake Switch Circuit
Frequently Asked Questions about C0161 Code
1. What are common symptoms of OBDII code C0161 (Antilock Braking System Brake Switch Circuit)?
- Common symptoms include the ABS warning light illuminating on the dashboard, potential loss of ABS functionality, and difficulty engaging the brakes.
2. What are the possible causes of OBDII code C0161?
- Possible causes include a faulty brake switch, damaged wiring or connectors in the brake switch circuit, or a malfunctioning ABS module.
3. How can I diagnose the cause of OBDII code C0161?
- You can diagnose the code by visually inspecting the brake switch and its wiring, testing the brake switch for proper operation, and using a diagnostic scanner to read the ABS module for specific faults.
4. Can a faulty brake switch cause OBDII code C0161?
- Yes, a faulty brake switch can trigger code C0161 as it is a vital component in the Antilock Braking System's brake switch circuit.
5. How can I repair OBDII code C0161 related to the Antilock Braking System Brake Switch Circuit?
- Repair options include replacing a faulty brake switch, repairing damaged wiring or connectors, or addressing any issues with the ABS module.
6. Are there any safety concerns associated with OBDII code C0161?
- Yes, it is essential to address code C0161 promptly to ensure the proper functioning of the Antilock Braking System, which is crucial for vehicle safety.
7. Can I drive my vehicle with OBDII code C0161?
- It is not recommended to drive your vehicle with unresolved code C0161, as it may compromise the performance of the Antilock Braking System and overall braking functionality.
8. How much does it typically cost to repair OBDII code C0161?
- The cost of repairing code C0161 can vary depending on the underlying cause, but it may range from a simple brake switch replacement to more extensive wiring repairs or ABS module replacement.
9. Can OBDII code C0161 affect other vehicle systems?
- While the primary impact of code C0161 is on the Antilock Braking System, it may indirectly affect other systems that rely on ABS functionality, such as traction control or stability control.
10. Is it possible to reset OBDII code C0161 without making any repairs?
- While clearing the code may temporarily turn off the warning light, it is crucial to identify and address the root cause to prevent the code from recurring and ensure proper ABS operation.
Discuss the causes and fixes for C0161 OBDII Code
-
The abs and traction control light comes on intermittently. I have not replaced any parts yet. My BlueDriver scan tool code C0161 witch points to a brake switch. I was waiting for code to stay on so it might be easier to troubleshoot. Any suggestions?
-
I agree, wait for the code to comeback. Let me check what are the most common problems for your vehicle. What model and year is your vehicle?
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
