Lexus ES: Hybrid Control System (for Lithium-ion Battery)
Lexus ES (XZ10) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Hybrid Control System (for Lithium-ion Battery)
- 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
- Vehicle Control History
- System Voltage (BATT) Circuit Short to Ground or Open (P056014)
- Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure (P060647,...,P1CE371)
- Hybrid/EV Powertrain Control Module Processor Unexpected Operation (P060694)
- Hybrid/EV Powertrain Control Module Monitoring Processor Unexpected Operation (P060A94)
- Hybrid/EV Powertrain Control Module EEPROM Data Memory Failure (P062F44)
- ECM/PCM Power Relay Sense Circuit Intermittent (P06881F)
- Transmission Range Sensor "A" Circuit (PRNDL Input) Signal Compare Failure (P070562)
- High Voltage System Interlock Circuit Open (P0A0A13,P0A0A92)
- Drive Motor "A" Control Module Internal Electronic Failure (P0A1B49)
- Drive Motor "A" Control Module Unexpected Operation (P0A1B94)
- Hybrid/EV Battery Energy Control Module Unexpected Operation (P0A1F94)
- Drive Motor "A" Temperature Sensor Circuit Short to Ground (P0A2A11,P0A2A15)
- Drive Motor "A" Temperature Sensor Voltage Out of Range (P0A2A1C,P0A2A1F)
- Generator Temperature Sensor Voltage Out of Range (P0A361C,P0A361F)
- Generator Temperature Sensor Circuit Short to Ground (P0A3611,P0A3615)
- 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 System Isolation Internal Electronic Failure (P0AA649,P1C7C49-P1C7F49)
- 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 Precharge Contactor Actuator Stuck Closed (P0AE173)
- Hybrid/EV Battery Precharge Contactor Circuit Short to Ground (P0AE411)
- Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open (P0AE415)
- 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)
- Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open (P1AC413)
- Collision detected or Collision Sensor Connection (Open) (P160600,P160604)
- Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure (P1C2D62)
- Motor Shutdown Stuck Off (P1C6A9F)
- Generator Shutdown Stuck Off (P1C6C9F)
- Engine Failed to Start Mechanical Linkage Failure (P1C7779)
- High Voltage Power Resource Circuit Consumption Circuit Short (P1C8149,P1C8249)
- 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)
- PCU Interlock Circuit Open (P1CE213,P1CE292)
- IGB Signal Circuit Short to Auxiliary Battery (P1CFA12)
- Throttle/Pedal Position Sensor/Switch "D" Circuit Short to Auxiliary Battery (P212012,...,P21382B)
- IG2 Signal Circuit Short to Auxiliary Battery (P253012)
- Transmission Fluid Temperature Sensor "C" Circuit Short to Ground (P274A11,P274A15)
- Transmission Fluid Temperature Sensor "C" Voltage Out of Range (P274A1C,P274A1F)
- High Voltage Power Resource Circuit Short during Pre-Charge (P300449)
- 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)
- Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message (P312387)
- 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,...,U117587)
- Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message (U011187)
- HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received (U042481)
- Brake Override System
- Transmission Control Switch Circuit
- Shift Paddle Switch Circuit
- Pattern Select Switch EV Mode Circuit
- Pattern Select Switch Sport Mode Circuit
- Pattern Select Switch Eco Mode Circuit
- Indicator Circuit
- ECU Power Source Circuit
- Motor Resolver Circuit
- Motor High-voltage Circuit
- Generator Resolver Circuit
- Generator High-voltage Circuit
- Shut Down Signal Circuit
- Inverter Low-voltage Circuit
- HV Battery High-voltage Line Circuit
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Precaution
PRECAUTION PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM (a) Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insul
Definition Of Terms
DEFINITION OF TERMS Term Definition Monitor Description Description of what the hybrid vehicle control ECU monitors and how to detects malfunctions (monitoring purpose and its details).
Parts Location
PARTS LOCATION ILLUSTRATION *1 ACCELERATOR PEDAL SENSOR ASSEMBLY *2 COMBINATION METER ASSEMBLY *3 AIR CONDITIONING AMPLIFIER ASSEMBLY *4 SHIFT PADDLE SWITCH (TRANSMISSION SHIFT SWI
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Open Circuit in Main Relay 1 (C1311,C1312)
DESCRIPTION The main relay supplies power to the switching solenoid and the linear solenoid. The main relay remains on for approximately 2 minutes after the power switch is turned off and the input of brake pedal operation signals stops, and supplies power to the system to keep it ready to operate.
Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received (U040181)
DESCRIPTION If the ECM cannot recognize the forward recognition camera. DTC U040181 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from U040181 Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received Approximately 17 seconds or
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