DTC P1A22:00 [PCM (e-SKYACTIV)]

id300202035300

Outline

System malfunction location	QBC contactors: Stuck ON
Detection condition	•  The PCM detects that both QBC contactors (+) and (-) are stuck on while driving or charging.
Fail-safe	•  Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [PCM (e-SKYACTIV)].)
Possible cause	High voltage battery malfunction •  High voltage battery internal parts malfunction •  PCM malfunction
System wiring diagram	•  Not applicable
Connector diagram	•  Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION •  Record the snapshot data. Note •  Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
2	VERIFY WHETHER MALFUNCTION IS PRESENT OR PAST •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is DTC P1A22:00 a present malfunction?	Yes	Go to the next step.
		No	Go to the repair completion verification 1.
3	VERIFY WHETHER MALFUNCTION IS PRESENT OR PAST AGAIN •  Switch the main power to OFF •  Switch the main power to ON (READY on) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is DTC P1A22:00 a present malfunction?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION.)
		No	Go to the repair completion verification 2.
4	INSPECT HIGH VOLTAGE BATTERY FOR MALFUNCTION DEPENDING ON REPEATABILITY •  Switch the main power to OFF •  Switch the main power to ON (READY on) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is DTC P1A22:00 a present malfunction?	Yes	•  Replace the high voltage battery, then go to the next step. (See HIGH VOLTAGE BATTERY REMOVAL/INSTALLATION.)
		No	Go to the repair completion verification 2.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED Warning <<High voltage>> •  Wear insulated gloves when working on a high voltage system. •  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. Warning •  While performing this step, always operate the vehicle in a safe and lawful manner. •  When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. ―  Drive the vehicle under the snapshot data condition. •  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 CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) 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. (See PCM REMOVAL/INSTALLATION.)
		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.