DTC P0223:00 [PCM (SKYACTIV-D 2.2)]
id0102j5702900
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 DTC P0223:00  | 
 APP sensor No.2 circuit high input  | 
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 DETECTION CONDITION 
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 •  The PCM monitors the input voltage from APP sensor No.2. If the input voltage at the PCM terminal 2AS is more than 4.15 V for 0.5 s, the PCM determines that the APP sensor No.2 circuit has a malfunction. 
 MONITORING CONDITIONS 
Diagnostic support note 
•  This is a continuous monitor (CCM). 
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. 
•  FREEZE FRAME DATA/Snapshot data is available. 
•  DTC is stored in the PCM memory. 
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 FAIL-SAFE FUNCTION 
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 •  Limits the engine torque or the upper limit of the engine speed. 
•  Inhibits engine-stop by operating the i-stop function. 
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 POSSIBLE CAUSE 
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 •  APP sensor connector or terminals malfunction 
•  PCM connector or terminals malfunction 
•  Short to power supply in wiring harness between APP sensor terminal E and PCM terminal 2AS 
•  APP sensor No.2 power supply circuit and signal circuit are shorted to each other 
•  Open circuit in wiring harness between APP sensor terminal D and PCM terminal 2AT 
•  APP sensor No.2 malfunction 
•  PCM malfunction 
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Diagnostic Procedure
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 STEP  | 
 INSPECTION  | 
 ACTION  | 
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 1 
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 RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION 
 •  Record the FREEZE FRAME DATA/snapshot data on the repair order. 
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 — 
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 Go to the next step. 
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 2 
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 VERIFY RELATED SERVICE INFORMATION AVAILABILITY 
•  Verify related Service Information availability. 
•  Is any related Service Information available? 
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 Yes 
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 Perform repair or diagnosis according to the available Service Information. 
•  If the vehicle is not repaired, go to the next step. 
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 No 
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 Go to the next step. 
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 3 
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 INSPECT APP SENSOR CONNECTOR CONDITION 
•  Switch the ignition off. 
•  Disconnect the APP sensor connector. 
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion). 
•  Is there any malfunction? 
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 Yes 
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 Repair or replace the connector and/or terminals, then go to Step 9. 
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 No 
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 Go to the next step. 
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 4 
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 INSPECT PCM CONNECTOR CONDITION 
•  Disconnect the PCM connector. 
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion). 
•  Is there any malfunction? 
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 Yes 
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 Repair or replace the connector and/or terminals, then go to Step 9. 
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 No 
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 Go to the next step. 
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 5 
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 INSPECT APP SENSOR NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY 
•  Verify that the APP sensor and PCM connectors are disconnected. 
•  Switch the ignition ON (engine off). 
 •  Measure the voltage at the APP sensor terminal E (wiring harness-side). 
•  Is the voltage 0 V? 
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 Yes 
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 Go to the next step. 
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 No 
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 Refer to the wiring diagram and verify whether or not there is a common connector between APP sensor terminal E and PCM terminal 2AS. 
If there is a common connector: 
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. 
•  Repair or replace the malfunctioning part. 
If there is no common connector: 
•  Repair or replace the wiring harness which has a short to power supply. 
Go to Step 9. 
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 6 
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 INSPECT APP SENSOR NO.2 POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT TO EACH OTHER 
•  Verify that the APP sensor and PCM connectors are disconnected. 
•  Switch the ignition off. 
•  Inspect for continuity between APP sensor terminals F and E (wiring harness-side). 
•  Is there continuity? 
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 Yes 
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 Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: 
•  APP sensor terminal F—PCM terminal 2AR 
•  APP sensor terminal E—PCM terminal 2AS 
If there is a common connector: 
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other. 
•  Repair or replace the malfunctioning part. 
If there is no common connector: 
•  Repair or replace the wiring harness which has a short to each other. 
Go to Step 9. 
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 No 
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 Go to the next step. 
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 7 
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 INSPECT APP SENSOR NO.2 GROUND CIRCUIT FOR OPEN CIRCUIT 
•  Verify that the APP sensor and PCM connectors are disconnected. 
•  Inspect for continuity between APP sensor terminal D (wiring harness-side) and PCM terminal 2AT (wiring harness-side). 
•  Is there continuity? 
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 Yes 
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 Go to the next step. 
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 No 
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 Refer to the wiring diagram and verify whether or not there is a common connector between APP sensor terminal D and PCM terminal 2AT. 
If there is a common connector: 
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. 
•  Repair or replace the malfunctioning part. 
If there is no common connector: 
•  Repair or replace the wiring harness which has an open circuit. 
Go to Step 9. 
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 8 
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 INSPECT APP SENSOR NO.2 
•  Reconnect all disconnected connectors. 
•  Inspect the APP sensor No.2.
 
•  Is there any malfunction? 
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 Yes 
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 Replace the accelerator pedal, then go to the next step. 
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 No 
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 Go to the next step. 
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 9 
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 VERIFY DTC TROUBLESHOOTING COMPLETED 
•  Always reconnect all disconnected connectors. 
•  Clear the DTC from the PCM memory using the M-MDS.
 
•  Perform the KOEO or KOER self test.
 
•  Is the same DTC present? 
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 Yes 
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 Repeat the inspection from Step 1. 
•  If the malfunction recurs, replace the PCM.
 
Go to the next step. 
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 No 
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 Go to the next step. 
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 10 
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 VERIFY AFTER REPAIR PROCEDURE 
•  Perform the “AFTER REPAIR PROCEDURE”.
 
•  Are any DTCs present? 
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 Yes 
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 Go to the applicable DTC inspection. 
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 No 
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 DTC troubleshooting completed. 
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