P2228

DTC P2227 / P2228 / P2229: Barometric Pressure Sensor Circuit Performance / Low / High

System Description

Barometric pressure sensor is installed in ECM.

DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

NOTE:

Check to make sure that the following conditions are satisfied when using this DTC confirmation procedure.

- Intake air temp.: Between -14 °C and 70 °C (6.8 °F and 158 °F)
- Altitude (barometric pressure): 2020 m, 6650 ft or less (540 mmHg, 72 kPa or more)

1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start engine and warm up to normal operating temperature.
4) Run engine at idle speed for 60 sec. or more.
5) Check DTC and pending DTC.

DTC Troubleshooting

1.
Was "Engine System Check" performed?
YES
Go to Step 2.
NO
Go to Engine System Check Engine System Check.

2.
Is DTC P2227 detected?
YES
Go to Step 3.
NO
Substitute a known-good ECM and recheck.

3. MAP sensor check

Remove ECM.
Check voltage between "C45-7" and "C46-27" under the following conditions.

Voltage between "C45-7" and "C46-27" of ECM with ignition switch ON
leaving engine OFF: 3.3 - 4.3 V at altitude 0 - 610 m, 0 - 2000 ft
At idling: 0.7 - 1.6 V at altitude 0 - 610 m, 0 - 2000 ft

Is check result as specified?
YES
Substitute a known-good ECM and recheck.
NO
Go to Step 3 of DTC P0108 flow.