C0649
Brake Pressure Sensor M Circuit/Open
C0649 is an OBD-II diagnostic trouble code meaning: Brake Pressure Sensor M Circuit/Open. Common causes: open or short circuit in wiring harness, brake pressure sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- ABS or ESP indicator is on
- Incorrect operation of the ABS system
- Increased braking distance
- Loss of braking efficiency
Causes
- Open or short circuit in wiring harness
- Brake pressure sensor malfunction
- Oxidation or damage to contacts
- Problems in the ABS/ESP control unit
How to Fix
- Check the integrity of the sensor wiring harness
- Check contacts for oxidation or damage
- Test the brake pressure sensor with a multimeter
- Replace sensor if necessary
- Check the ABS/ESP control unit for errors
Related codes
Error C0649 by Vehicle Brand
FAQ
What does the C0649 code mean?
C0649 is an OBD-II diagnostic trouble code that indicates: Brake Pressure Sensor M Circuit/Open
What causes a C0649 error code?
The most common causes of C0649 include: Open or short circuit in wiring harness; Brake pressure sensor malfunction; Oxidation or damage to contacts; Problems in the ABS/ESP control unit.
How do I fix a C0649 diagnostic trouble code?
To fix C0649: Check the integrity of the sensor wiring harness. Check contacts for oxidation or damage. Test the brake pressure sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0649?
Limited driving only, diagnose soon
How much does it cost to fix C0649?
The estimated repair cost for C0649 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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