DTC P2228:00 BARO Sensor Circuit Low Input

DTC P2228:00 (PCM - VIN M, WITH CYLINDER DEACTIVATION) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2228:00	BARO sensor circuit low input
DETECTION CONDITION	The PCM monitors input voltage from the BARO sensor. If the input voltage is low for 5s, the PCM determines that the BARO sensor circuit has a malfunction. 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.
FAIL-SAFE FUNCTION	Fixes the barometric pressure for the engine control at 101.32 kPa {1.0332 kgf/cm² , 14.695 psi}.
POSSIBLE CAUSE	BARO sensor (built-into PCM) malfunction PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

@H2@Diagnostic Procedure

DTC P2228:00 (PCM - VIN M, WITH CYLINDER DEACTIVATION) DETECTION CONDITION AND POSSIBLE CAUSE

STEP	INSPECTION	RESULTS	ACTION
1	RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION NOTE: Recording can be facilitated using the screen capture function of the PC. Record the FREEZE FRAME DATA/snapshot data on the repair order.	-	Go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT BARO SENSOR Inspect the BARO sensor. (See BAROMETRIC PRESSURE (BARO) SENSOR INSPECTION [VIN M (WITH CYLINDER DEACTIVATION)] .) Is there any malfunction?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [VIN M (WITH CYLINDER DEACTIVATION)] .)
3		No	Go to the next step.
4	VERIFY DTC TROUBLESHOOTING COMPLETED Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (VIN M (WITH CYLINDER DEACTIVATION))] .) Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST [PCM (VIN M (WITH CYLINDER DEACTIVATION))] .) Is the same Pending DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [VIN M (WITH CYLINDER DEACTIVATION)] .)
4		No	Go to the next step.
5	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [PCM (VIN M (WITH CYLINDER DEACTIVATION))] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (VIN M (WITH CYLINDER DEACTIVATION))] .)
5		No	DTC troubleshooting completed.