C0085moderate severityChassis
Brake Pressure Sensor Circuit
on 1999 Mazda MX-5 Miata 1.8L I4 · RWD
What this code means
Malfunction in the brake pressure sensor.
Symptoms
- ABS light on
- Brake warning light
- Stability control disabled
Common causes
- Faulty brake pressure sensor
- Wiring issue
- Low brake fluid
Diagnostic steps
- Check brake fluid level
- Test sensor
- Inspect wiring
Repair notes
Check fluid level first. Replace sensor if faulty.
Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic