Troubleshooting Diagnostic Procedure

P226D: 00 (PCM (H3T)) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	PURPOSE: VERIFY PIPING BETWEEN GPF PRESSURE SENSOR AND CATALYTIC CONVERTER (GPF) Visually inspect the piping between the GPF pressure sensor and the catalytic converter (GPF) for poor installation or damage. Housing component (Refer to [ SUPERCHARGER REMOVAL/INSTALLATION] in service information). GPF pressure sensor connection hose (Refer to [ GPF PRESSURE SENSOR REMOVAL/INSTALLATION] in service information). (Refer to [CATALYTIC CONVERTER (GPF) REMOVAL/INSTALLATION ] in service information). Is the piping normal?	Yes	Go to the next step.
1		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to [CATALYTIC CONVERTER (GPF) REMOVAL/INSTALLATION ] in service information).
2	PURPOSE: DETERMINE IF MALFUNCTION CAUSE IS GPF Install/connect the part removed/disconnected during the troubleshooting procedure. Clear the DTC recorded in the memory. (See CLEARING DTC .) Replicate the vehicle conditions at the time the DTC was detected using the following procedure. Implement the repeatability verification procedure. (See Repeatability Verification Procedure ). Perform the DTC inspection for the PCM. (See DTC INSPECTION .) Is the same Pending DTC present?	Yes	Malfunction due to poor installation or damage of the catalytic converter (GPF) can be considered. Replace the catalytic converter (GPF). (Refer to [CATALYTIC CONVERTER (GPF) REMOVAL/INSTALLATION ] in service information). Perform the GPF data reset and perform the repair completion verification 1. (See RESETTING THE ESTIMATED VALUE OF SOOT DEPOSITED AMOUNT OF GPF [H3T].)
2		No	Go to repair completion verification 2.
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Clear the DTC recorded in the memory. (See CLEARING DTC .) Replicate the vehicle conditions at the time the DTC was detected using the following procedure. Implement the repeatability verification procedure. (See Repeatability Verification Procedure ). Perform the DTC inspection for the PCM. (See DTC INSPECTION .) Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) If the CAN communication is normal, perform the diagnosis from Step 1. If the malfunction recurs, replace the PCM, then go to the next step. (Refer to [PCM REMOVAL/INSTALLATION ] in service information).
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED Perform the DTC inspection. (See DTC INSPECTION .) Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.