C0639
Brake Pressure Sensor H Circuit/Open
C0639 is an OBD-II diagnostic trouble code meaning: Brake Pressure Sensor H Circuit/Open. Common causes: open circuit in the sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- ESP system does not work
- Problems with the stability control system
- Unusual brake behavior
Causes
- Open circuit in the sensor wiring harness
- Poor contact in the sensor connector
- Malfunction of the pressure sensor itself
- Problems with the ABS/ESP control module
How to Fix
- Check the integrity of the wiring harness
- Check the contacts in the sensor connector
- Check the resistance of the pressure sensor
- Check power and ground on the sensor
- Replace sensor if necessary
Related codes
Error C0639 by Vehicle Brand
FAQ
What does the C0639 code mean?
C0639 is an OBD-II diagnostic trouble code that indicates: Brake Pressure Sensor H Circuit/Open
What causes a C0639 error code?
The most common causes of C0639 include: Open circuit in the sensor wiring harness; Poor contact in the sensor connector; Malfunction of the pressure sensor itself; Problems with the ABS/ESP control module.
How do I fix a C0639 diagnostic trouble code?
To fix C0639: Check the integrity of the wiring harness. Check the contacts in the sensor connector. Check the resistance of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0639?
Limited driving only, diagnose soon
How much does it cost to fix C0639?
The estimated repair cost for C0639 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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