DTC P2243:00 [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)]

id0102j1303600

Note

•  To determine the malfunctioning part, proceed with the diagnostics from "Function Inspection Using M-MDS".

Details On DTCs

DESCRIPTION	A/F sensor reference voltage circuit open
DETECTION CONDITION	Determination conditions	•  A condition in which the PCM terminal 1W voltage is the specified value or more continues for 30 s.
	Preconditions	•  Switch the ignition ON (engine off or on) •  Battery voltage: 11—18 V*1 •  The following DTCs are not detected ―  A/F sensor heater: P0031:00, P0032:00 *1: Value can be verified by displaying the PIDs using the M-MDS.
	Malfunction determination period	•  30 s period
	Drive cycle	•  2
	Self test type	•  CMDTC self test, KOER self test
	Sensor used	•  A/F sensor
FAIL-SAFE FUNCTION	•  Not applicable.
VEHICLE STATUS WHEN DTCs ARE OUTPUT	•  Illuminates the check engine light
POSSIBLE CAUSE	•  A/F sensor connector or terminals malfunction •  PCM connector or terminals malfunction •  Open circuit in wiring harness between A/F sensor terminal F and PCM terminal 1W •  A/F sensor malfunction •  PCM malfunction

System Wiring Diagram

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Function Explanation (DTC Detection Outline)

Repeatability Verification Procedure

PID Item/Simulation Item Used In Diagnosis

Function Inspection Using M-MDS

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: VERIFY RELATED SERVICE INFORMATION AVAILABILITY •  Verify related Service Information availability. •  Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. •  If the vehicle is not repaired, go to the next step.
		No	Go to the next step.
2	PURPOSE: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION •  Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the troubleshooting procedure to perform the procedure from Step 1.
		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order. Note •  Recording can be facilitated using the screen capture function of the PC. Go to the troubleshooting procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

―  Perform an inspection of the A/F sensor and PCM-related connectors and wiring harnesses.

―  Perform a unit inspection of the A/F sensor.

―  Verify that primary malfunction is resolved and there are no other malfunctions.

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: INSPECT A/F SENSOR CONNECTOR CONDITION •  Switch the ignition off. •  Disconnect the A/F sensor connector. •  Inspect for poor connection (such as damaged/pulled-out pins, corrosion). •  Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 5.
		No	Go to the next step.
2	PURPOSE: INSPECT PCM CONNECTOR CONDITION •  Disconnect the PCM connector. •  Inspect for poor connection (such as damaged/pulled-out pins, corrosion). •  Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 5.
		No	Go to the next step.
3	PURPOSE: INSPECT A/F SENSOR CIRCUIT FOR OPEN CIRCUIT •  Verify that the A/F sensor and PCM connectors are disconnected. •  Inspect for continuity between A/F sensor terminal F (wiring harness-side) and PCM terminal 1W (wiring harness-side). •  Is there continuity?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify whether or not there is a common connector between A/F sensor terminal F and PCM terminal 1W. 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 5.
4	PURPOSE: DETERMINE INTEGRITY OF A/F SENSOR •  Reconnect all disconnected connectors. •  Inspect the A/F sensor. (See AIR FUEL RATIO (A/F) SENSOR INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) •  Is there any malfunction?	Yes	Replace the A/F sensor, then go to the next step. (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
		No	Go to the next step.
5	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION •  Always reconnect all disconnected connectors. •  Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) •  Perform the KOER self test. (See KOEO/KOER SELF TEST [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) •  Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) Go to the next step.
		No	Go to the next step.
6	PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION •  Is any other DTC or pending code stored?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
		No	DTC troubleshooting completed.