DESCRIPTION
The atmospheric pressure sensor is built into the ECM. The ECM provides optimal control in response to atmospheric pressure fluctuations.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
---|---|---|---|---|---|
P222611 | Barometric Pressure Sensor "A" Circuit Short to Ground | Short in atmospheric pressure sensor circuit (ECM internal malfunction) (1 trip detection logic). | ECM | Comes on | SAE: P2228 |
P222615 | Barometric Pressure Sensor "A" Circuit Short to Battery or Open | Open or short in atmospheric pressure sensor circuit (ECM internal malfunction) (1 trip detection logic). | ECM | Comes on | SAE: P2229 |
MONITOR DESCRIPTION
The ECM calculates the atmospheric pressure from the atmospheric pressure sensor output voltage. When the atmospheric pressure sensor output voltage is outside of the normal range, there may be an open or short in the atmospheric pressure sensor circuit or the atmospheric pressure sensor may be malfunctioning. In this case, the ECM will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Required Sensors/Components | Atmospheric pressure sensor (ECM) |
Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
HINT:
GTS Display | Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
HINT:
CAUTION / NOTICE / HINT
HINT:
Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1. | CHECK DTC OUTPUT |
(a) Read the DTCs.
Powertrain > Engine > Trouble CodesNEXT |
![]() | REPLACE ECM |
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.