Mazda OBD Codes: Meaning & Fixes
Mazda: 28 error codes with meaning, severity, likely causes and repair cost estimates.
17Codes
2.8Average severity
24%High or critical
18%DIY-friendly
Severity distribution
Field data · Mazda
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.
Most viewed
P0192
Powertrain
The rail pressure sensor signal voltage has fallen below the lowest value a working sensor can…
Moderate
P0171
Powertrain
The engine computer is adding the maximum extra fuel it's allowed on bank 1 and still sees…
Moderate
P0455
Powertrain
The fuel vapor system can't hold vacuum at all — check the gas cap first, then hoses and valves.
Low
P0016
Powertrain
The bank 1 intake cam and the crankshaft are out of step, most often from a stretched or jumped…
High
U0101
Network
The engine computer and other modules stopped hearing from the transmission control module.
High
P0720
Powertrain
Electrical fault in the output shaft speed signal – shift timing and sometimes the speedometer…
Moderate
All codes (4)
B00A0
Body
The front passenger seat sensing system has failed, so the car can't tell who, if anyone…
High
B2278
Ford · Body
The power steering module can't trust the column torque sensor, so it drops or limits steering…
High
P0016
Powertrain
The bank 1 intake cam and the crankshaft are out of step, most often from a stretched or jumped…
High
U0101
Network
The engine computer and other modules stopped hearing from the transmission control module.
High