Toyota Corolla Cross: Hybrid Control System
Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Hybrid Control System
- Precaution
- Definition Of Terms
- Parts Location
- System Diagram
- How To Proceed With Troubleshooting
- Utility
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Freeze Frame Data
- Vehicle Behavior Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- VEHICLE CONTROL HISTORY (RoB)
- Different Diameter Tire (C134800)
- Brake Switch "A"/"B" Signal Cross Coupled (P05042B)
- System Voltage (BATT) Circuit Short to Ground or Open (P056014)
- Brake Switch "A" Circuit Open (P057113)
- Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure (P060647,...,P1CE371)
- High Voltage System Interlock Circuit Open (P0A0A13,P0A0A92)
- Drive Motor "B" Control Module Unexpected Operation (P0A1C94)
- Hybrid/EV Battery Energy Control Module Unexpected Operation (P0A1F94)
- Drive Motor "B" Temperature Sensor Circuit Short to Ground (P0A3011,P0A3015)
- Drive Motor "B" Temperature Sensor Signal Stuck In Range (P0A302A)
- Inverter "A" Cooling System Performance (P0A9300)
- Hybrid/EV Battery Positive Contactor Circuit Stuck Closed (P0AA000)
- Hybrid/EV Battery Positive and Negative Contactor Actuator Stuck Closed (P0AA073)
- Hybrid/EV Battery Negative Contactor Actuator Stuck Closed (P0AA373)
- Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure (P0AA749)
- Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance (P0ABF00)
- Hybrid/EV Battery Positive Contactor Circuit Short to Ground (P0AD911)
- Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open (P0AD915)
- Hybrid/EV Battery Negative Contactor Circuit Short to Ground (P0ADD11)
- Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open (P0ADD15)
- Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range (P0B231C)
- Motor Electronics Coolant Pump "A" Component Internal Failure (P0C7396)
- Hybrid/EV Battery System Discharge Time Too Long (P0C7600)
- Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range (P0D2D1C)
- Boosting Converter Voltage Sensor "A" Voltage Out of Range (P0E311C)
- Collision detected or Collision Sensor Connection (Open) (P160600,P160604)
- Communication Error from ECM to VSC Invalid Serial Data Received (P163181)
- DC/DC Converter System Performance (P19E100)
- Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure (P1C2D62)
- Motor Shutdown Stuck Off (P1C6A9F)
- Rear Motor Shutdown Stuck Off (P1C6B9F)
- Generator Shutdown Stuck Off (P1C6C9F)
- Engine Failed to Start Mechanical Linkage Failure (P1C7779)
- High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction (P1C8349)
- High Voltage Power Resource Circuit Short during Ready ON (P1C8449)
- Transmission (Input) Mechanical Linkage Failure (P1C8679)
- Generator Mechanical Linkage Failure (P1C8779,P1C8879)
- DC/DC Converter Internal Electronic Failure (P1CCC49)
- PCU Interlock Circuit Open (P1CE213,P1CE292)
- IGB Signal Circuit Short to Auxiliary Battery (P1CFA12)
- Motor Inverter Shutdown Performance Stuck Off (P1F689F)
- Throttle/Pedal Position Sensor/Switch "D" Circuit Short to Auxiliary Battery (P212012,...,P21382B)
- IG2 Signal Circuit Short to Auxiliary Battery (P253012)
- Ignition Switch On/Start Position Circuit Low Circuit Short to Ground or Open (P253314)
- Lost Communication with Airbag System Control Module Circuit Short to Ground (P310711)
- Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open (P310715)
- Lost Communication with Airbag System Control Module Signal Plausibility Failure (P310764)
- Transmission (Shaft) Mechanical Linkage Failure (P314779)
- Motor Electronics Coolant Pump "A" No Signal (P314A31)
- Hybrid/EV Battery Voltage High (P31B300)
- Motor/Generator Shutdown Signal Stuck Off (P321E9F)
- Motor/Generator Shutdown Signal (Hybrid/EV Side) Stuck Off (P33B99F)
- Motor/Generator Shutdown Signal (MG Side) Stuck Off (P33BF9F)
- Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U117B87)
- Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message (U011187)
- Lost Communication with DC/DC Converter Control Module "C" Missing Message (U01BD87)
- HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received (U042481)
- Lost Communication with Drive Motor Control Module "A" (ch4) Missing Message (U117E87)
- Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message (U11BC87)
- Brake Override System
- Transmission Control Switch Circuit
- Shift Paddle Switch Circuit
- Pattern Select Switch EV Mode Circuit
- Drive Mode Select Switch Circuit
- Indicator Circuit
- Drive Start Control
- ECU Power Source Circuit
- Motor Resolver Circuit
- Motor High-voltage Circuit
- Generator Resolver Circuit
- Generator High-voltage Circuit
- Rear Motor Resolver Circuit
- Rear Motor High-voltage Circuit
- Shut Down Signal Circuit
- Inverter Low-voltage Circuit
- HV Battery High-voltage Line Circuit
- Cooling System
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Precaution
PRECAUTION PRECAUTIONS FOR INSPECTING HYBRID SYSTEM
CAUTION:
Before the following operations are conducted, take precautions to prevent electric shock by turning the ignition switch off, wear
Definition Of Terms
DEFINITION OF TERMS
Term Definition
Monitor Description Description of what the hybrid vehicle control ECU monitors and how to detect malfunctions (monitoring purpose and its detai
Parts Location
PARTS LOCATION ILLUSTRATION
*1 INVERTER WATER PUMP ASSEMBLY
*2 INVERTER WITH CONVERTER ASSEMBLY
*3 ECM
*4 COMPRESSOR WITH MOTOR ASSEMBLY
*5 HYBRI
SEE MORE:
Power Back Door ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Power Back Door ECU Communication Stop Mode
Communication stop for "Back Door" is indicated on the "Communication
Bus Check" screen of the GTS.
Click here
EPS Warning Light Circuit
DESCRIPTION
Use the following procedure if no DTCs are output but the EPS warning light is
illuminated continuously.
The power steering ECU assembly controls the warning light in the combination
meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
When the power steering EC
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