HINT:

• This DTC is differentiated from P1C8349 based on detection timing (after ignition switch is turned to ON (READY)). If P1C8349 is also output at the same time, first perform troubleshooting for P1C8349.
• If there is a SMRG stuck open malfunction, only P1C8449 is output.

HINT:

• After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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• When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

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HINT:

• P1C8449 may be output as a result of the malfunction indicated by the DTCs in table below.
  1. The chart above is listed in inspection order of priority.
  2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

     Malfunction Content	System	Relevant DTC
     Microcomputer malfunction	Hybrid control system	P0A1B49	Drive Motor "A" Control Module Internal Electronic Failure
     		P060647	Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
     	Motor generator control system	P0A1B1F	Generator Control Module Circuit Intermittent
     		P0A1A47	Generator Control Module Watchdog / Safety μC Failure
     		P0A1A49	Generator Control Module Internal Electronic Failure
     		P1C2A1C	Generator A/D Converter Circuit Circuit Voltage Out of Range
     		P1C2A49	Generator A/D Converter Circuit Internal Electronic Failure
     		P313383	Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect
     		P313386	Communication Error from Generator to Drive Motor "A" Signal Invalid
     	Hybrid battery system	P060687	Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
     		P060A47	Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
     		P060A87	Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message
     		P060B16	Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold
     		P060B49	Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
     Power source circuit malfunction	Motor generator control system	P06D61C	Generator Control Module Offset Power Circuit Voltage Out of Range
     	Hybrid battery system	P1CBB12	Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery
     		P1CBB14	Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open
     Communication system malfunction	Hybrid control system	P312387	Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
     		U011187	Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message
     	Motor generator control system	P313387	Communication Error from Generator to Drive Motor "A" Missing Message
     Sensor and actuator circuit malfunction	Hybrid control system	P0ABF00	Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance
     		P0AD911	Hybrid/EV Battery Positive Contactor Circuit Short to Ground
     		P0AD915	Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open
     		P0ADD11	Hybrid/EV Battery Negative Contactor Circuit Short to Ground
     		P0ADD15	Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open
     	Motor generator control system	P0D2D16	Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Below Threshold
     		P0D2D17	Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Above Threshold
     	Hybrid battery system	P0ABF11	Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground
     		P0ABF15	Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open
     		P0ABF28	Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure
     		P0ABF2A	Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range
     		P0B0E11	Hybrid/EV Battery Current Sensor "B" Circuit Short to Ground
     		P0B0E15	Hybrid/EV Battery Current Sensor "B" Circuit Short to Auxiliary Battery or Open
     		P0B1362	Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure
     System malfunction	Hybrid control system	P0A1F94	Hybrid/EV Battery Energy Control Module Unexpected Operation
     		P0D2D1C	Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range
     		P0E311C	Boosting Converter Voltage Sensor "A" Voltage Out of Range
     		P1C2D62	Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure
     		P1C8349	High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction
     		P300449	High Voltage Power Resource Circuit Short during Pre-Charge
     	Motor generator control system	P1CB69E	Drive Motor "A" Inverter Voltage Sensor(VH) Stuck On
     		P0CA300	DC/DC Converter Step Up Voltage Performance
     	Hybrid battery system	P300016	Hybrid/EV Battery Control System Circuit Voltage Below Threshold

HINT:

• If the ignition switch could not be turned to ON (READY), turn the ignition switch off and check for DTCs after turning the ignition switch to ON (READY) again.
• Because P300449 uses 2 trip detection logic, the DTC detection conditions need to be met 2 times.
• When the parking brake indicator (red) is illuminated after the electric parking brake switch assembly has been pulled to the lock side, the maximum amount of braking force is applied if the electric parking brake switch assembly is pulled to the lock side one more time.