C1423
Master Cylinder Pressure Sensor Zero Point Low Malfunction
C1423 is an OBD-II diagnostic trouble code meaning: Master Cylinder Pressure Sensor Zero Point Low Malfunction. Common causes: malfunction of the gas turbine pressure data detector, oxidation of contacts or damage to the wiring harness. Estimated repair cost: $56–167.
Symptoms
- The brake system fault indicator is on
- Reduced braking performance
- Activation of ABS/ESP systems for no apparent reason
Causes
- Malfunction of the gas turbine pressure data detector
- Oxidation of contacts or damage to the wiring harness
- Low brake fluid level
- Problems with the ABS/ESP control unit
How to Fix
- Check the brake fluid level
- Visually inspect the sensor and wiring harness
- Test the sensor using a diagnostic scanner
- Replace sensor if necessary
- Diagnose the ABS/ESP unit
Related codes
FAQ
What does the C1423 code mean?
C1423 is an OBD-II diagnostic trouble code that indicates: Master Cylinder Pressure Sensor Zero Point Low Malfunction
What causes a C1423 error code?
The most common causes of C1423 include: Malfunction of the gas turbine pressure data detector; Oxidation of contacts or damage to the wiring harness; Low brake fluid level; Problems with the ABS/ESP control unit.
How do I fix a C1423 diagnostic trouble code?
To fix C1423: Check the brake fluid level. Visually inspect the sensor and wiring harness. Test the sensor using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1423?
Limited driving only, diagnose soon
How much does it cost to fix C1423?
The estimated repair cost for C1423 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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