P0105: Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
Short answer: P0105 means “Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction”. It is a standard OBD-II code, so the basic meaning is the same on every car. Below is what it means on each of the 6 cars we cover, with a link to the full page for each car.
Standard OBD-II code Same meaning on all cars (SAE J2012).
P0105 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | Manifold Absolute Pressure/Barometric Pressure Circuit (P0105/31) | high |
| Toyota Corolla (11th gen, E170) | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction | medium |
| Toyota Corolla (10th gen, E140) | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction | medium |
| Honda City (5th gen, GM2) | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction | medium |
| Honda Civic (10th gen, FC) | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction | medium |
| Suzuki Wagon R (Pakistan, K10B) | Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction | medium |
Symptoms
- Check engine light on
- Poor running engine
- Engine runs rich
- Engine won't idle
- Engine backfires through tailpipe
- Engine misfire under load or at idle
Likely causes
- A P0105 DTC could be caused by
- MAP sensor vacuum hose disconnected or plugged
- Bad
- MAP sensor
- Bad TPS
- Damaged or problematic MAP sensor connector
- Damaged or problematic TPS connector
What to check, in order
- Read the code and freeze-frame data with an OBD-II scanner
- Check the connector and wiring of the part named in the code
- Test the part with scanner live data or a multimeter, using the values in the repair manual
- Fix the cause, clear the code and test-drive
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.