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 | Memory | 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 | DTC stored | SAE Code: 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 | DTC stored | SAE Code: P2229 |
MONITOR DESCRIPTION
The ECM calculates the atmospheric pressure from the atmospheric pressure sensor output voltage. When the atmospheric sensor assembly 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
Related DTCs | P2228: Barometric pressure sensor range check (low voltage) P2229: Barometric pressure sensor range check (high voltage) |
Required Sensors/Components (Main) | Atmospheric pressure sensor (ECM) |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | 3 seconds |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored | None |
Both of the following conditions are met | - |
Auxiliary battery voltage | 8 V or higher |
Power switch | On (IG) |
TYPICAL MALFUNCTION THRESHOLDS
P2228 Atmospheric pressure sensor voltage [Barometric pressure] | Less than 1.16 V [Less than 37 kPa(abs) [5.4 psi(abs)]] |
Atmospheric pressure sensor voltage [Barometric pressure] | Higher than 4.48 V [Higher than 121 kPa(abs) [18 psi(abs)]] |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
NOTICE:
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(Select Powertrain in Health Check and then check the time stamp data.)
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Click here
HINT:
Read Freeze Frame Data using the Techstream. 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) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble CodesNEXT | REPLACE ECM |