Cruise Control/Brake Switch A Circuit High
The P0573 code means the vehicle's onboard diagnostic system has detected: Cruise Control/Brake Switch A Circuit High. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $50 - $400 (parts and labor)
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What Are the Symptoms of P0573?
- Check Engine Light on
- Cruise control does not disengage when braking
- Cruise control indicator malfunction
- Cruise control system inoperative
What Causes P0573? (Most Likely First)
- Brake switch circuit shorted to power Very High
- Damaged clockspring or steering column wiring High
- Corroded connector in cruise control circuit Moderate
- ECM or cruise control module input failure Low
Can I Still Drive with P0573?
Short distances only. P0573 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0573 mean?
P0573 indicates a malfunction in the cruise control/brake switch a circuit high. The ECM has detected an abnormal signal in this portion of the cruise control system, preventing proper operation of that function.
Can I still drive safely with this code?
Yes, though brake-related cruise control codes should be addressed promptly for safety. The cruise control system is a convenience feature and this code does not affect engine performance.
Is this a common cruise control problem?
Cruise control switch and wiring issues are relatively common, especially on vehicles with high mileage. The steering column clockspring and switch contacts wear over time from normal use.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0573?
-
Use a scan tool to monitor cruise control input signals while operating each switch
-
Inspect cruise control switch and clockspring connections for damage or wear
-
Test the specific circuit for proper voltage and continuity related to the cruise control/brake switch a circuit high
-
Check all cruise control fuses and relay connections
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Which Vehicles Commonly Get P0573?
- 2008-2018 Ford F-150
- 2010-2020 Toyota Camry
- 2009-2019 Honda Accord
- 2011-2020 Chevrolet Silverado
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