Toyota Yaris: Sfi System / Barometric Pressure Sensor "A" Circuit Short to Ground (P222611,P222615)
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
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON.
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Turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the ignition switch off and wait for at least 30 seconds.
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Turn the ignition switch to ON.
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Turn the GTS on.
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Wait 5 seconds or more.
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Enter the following menus: Powertrain / Engine / Trouble Codes.
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Read the DTCs.
HINT:
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If a pending DTC is output, the system is malfunctioning.
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If a pending DTC is not output, perform the following procedure.
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Enter the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P222611 or P222615.
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Check the DTC judgment result.
GTS Display | Description |
NORMAL | -
DTC judgment completed
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System normal
|
ABNORMAL | -
DTC judgment completed
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System abnormal
|
INCOMPLETE | -
DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
|
HINT:
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If the judgment result is NORMAL, the system is normal.
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If the judgment result is ABNORMAL, the system is malfunctioning.
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
(a) Read the DTCs.
Powertrain > Engine > Trouble Codes
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| REPLACE ECM |
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CAUTION / NOTICE / HINT NOTICE:
When using the GTS with the ignition switch off to troubleshoot:
Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1...
INSPECTION CAUTION / NOTICE / HINT NOTICE:
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Categories
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.
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