Code No. P2228: Barometric Pressure Sensor Circuit Low Input
FUNCTION
- The barometric pressure sensor converts the barometric
pressure into a voltage signal and inputs the signal to the engine-ECU.
- In response to the signal, the engine-ECU corrects the fuel injection amount, etc.
TROUBLE JUDGMENT
Check Conditions
- 2 seconds or more have passed since the engine starting sequence was completed.
- Battery positive voltage is higher than 8 V.
- Barometric pressure sensor output signal has continued to be 49 kPa or lower (approximately 4,600
m above sea level) for 10 seconds.
PROBABLE CAUSE
- Failed barometric pressure sensor
DIAGNOSIS PROCEDURE |
STEP 1. M.U.T.-III diagnosis code |
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Q.
Is the diagnosis code set?
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Replace the engine-ECU. |
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Intermittent malfunction (Refer to GROUP 00 -
How to Use Troubleshooting/Inspection
Service Points -
How to Cope with Intermittent Malfunctions ). |
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