Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Vehicle Control History

Vehicle Control History (RoB)

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X0450

Hybrid Battery Pack Sensor Module Mismatch

Displays if the wrong type of battery voltage sensor is installed.

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X0460

Hybrid Battery Cooling Performance Decrement

History of poor HV battery cooling performance

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X0500

Shift P Operation during Running

History of shift lever being moved to P while driving

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X0509

Shift R/D Operation during Ready OFF

History of shift lever being moved to R or D with power switch on (IG)

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X050B

Shift N Change by Busy Shift

History of shift state being changed to neutral (N) due to shift lever being repeatedly moved to R, D and/or N within a short period of time

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X0520

HV System Start Up Failure by Very Low Temperature

History of hybrid control system failing to start due to extremely cold environment

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X0521

HV System Start Up Failure by Immobiliser Unmatch

History of hybrid control system failing to start due to immobiliser system key verification failure

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X0522

Ready ON Failure by Shift Operation

History of the power switch not being turned on (READY) due to a shift operation

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X0523

Auxiliary Battery Voltage Low (HV)

History of drop in hybrid control ECU power source voltage

Stored when the auxiliary battery voltage to the hybrid control ECU drops below 9.5 V.

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X0524

Auxiliary Battery Voltage Low (Inverter)

History of drop in motor generator control ECU (MG ECU) power source voltage

Stored when the auxiliary battery voltage to the motor generator control ECU (MG ECU) drops to 8.0 V or less.

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X0526

HV System Stop Operation during Running

History of hybrid control system being turned off by pressing power switch while vehicle being driven

Stored when the power switch is turned off when the vehicle speed is 3 km/h (2 mph) or more.

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X0527

Generator Temperature High

History of extremely high generator (MG1) temperature and hybrid system overheated warning message being displayed

Stored when the generator (MG1) temperature exceeds a certain value.

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X0528

Generator Inverter Temperature High

History of extremely high generator (MG1) inverter temperature and hybrid system overheated warning message being displayed

Stored when the generator (MG1) inverter temperature exceeds a certain value.

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X0529

Motor Temperature High

History of extremely high motor (MG2) temperature and hybrid system overheated warning message being displayed

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X052A

Motor Inverter Temperature High

History of extremely high motor (MG2) inverter temperature and hybrid system overheated warning message being displayed

Stored when the motor (MG2) inverter temperature exceeds a certain value.

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X052D

Boosting Converter Temperature High

History of extremely high boost converter temperature and hybrid system overheated warning message being displayed

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X0530

Staying Prevention Control

History of operation of retention prevention function

Stored when the engine speed remains in the resonance range.

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X0531

Hybrid Battery Protection in Neutral Shift Position

History of hybrid battery discharge warning message being displayed when vehicle left with shift lever in N

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X0532

HV Coolant Temperature High

History of extremely high coolant (for inverter) temperature

Stored when the coolant (for inverter) temperature is 65°C or more.

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X0536

Hybrid Battery Voltage Low

History of hybrid control system starting failure due to low HV battery voltage

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X0537

HV System Start Up Failure by Hybrid Battery Unmatch

History of hybrid control system starting failure due to an inappropriate HV battery

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X0539

Shift R Operation during Forward Movement or Shift D/B Operation during Backward Movement

History of shift lever being moved to R while vehicle moving forward or shift lever being moved to D or B while vehicle moving backward

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X053A

Shift Position Uncertain

Shift position cannot be determined

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02

X053B

Engine Malfunction (Poor Engine Power)

History of vehicle state during engine malfunction (poor engine power)

(This information can be helpful for performing troubleshooting.)

Stored when the ECM stores an SFI system DTC.

Make sure to clear Vehicle Control History after performing troubleshooting related to this item.

As all Vehicle Control History should be cleared after performing troubleshooting related this item, make sure to check any other output Vehicle Control History items and perform any troubleshooting for them before clearing Vehicle Control History.

02

X053C

Engine Malfunction (Engine does not Start)

History of vehicle state during engine malfunction (engine does not start)

(This information can be helpful for performing troubleshooting.)

Stored when the ECM stores an SFI system DTC.

Make sure to clear Vehicle Control History after performing troubleshooting related to this item.

As all Vehicle Control History should be cleared after performing troubleshooting related this item, make sure to check any other output Vehicle Control History items and perform any troubleshooting for them before clearing Vehicle Control History.

02

X053D

Engine Malfunction (Crankshaft Position Sensor Signal)

History of vehicle state during engine malfunction (abnormal crankshaft position sensor signal)

(This information can be helpful for performing troubleshooting.)

Stored when the ECM stores an SFI system DTC.

Make sure to clear Vehicle Control History after performing troubleshooting related to this item.

As all Vehicle Control History should be cleared after performing troubleshooting related to this item, make sure to check any other output Vehicle Control History items and perform any troubleshooting for them before clearing Vehicle Control History.

02

X053E

Engine Malfunction (GO Signal)

History of vehicle state during engine malfunction (GO signal)

(This information can be helpful for performing troubleshooting.)

Stored when the ECM stores an SFI system DTC.

Make sure to clear Vehicle Control History after performing troubleshooting related to this item.

As all Vehicle Control History should be cleared after performing troubleshooting related to this item, make sure to check any other output Vehicle Control History items and perform any troubleshooting for them before clearing Vehicle Control History.

02

X053F

Engine Malfunction (Component Malfunction)

History of vehicle state during engine malfunction (engine component malfunction)

(This information can be helpful for performing troubleshooting.)

Stored when the ECM stores an SFI system DTC.

Make sure to clear Vehicle Control History after performing troubleshooting related to this item.

As all Vehicle Control History should be cleared after performing troubleshooting related to this item, make sure to check any other output Vehicle Control History items and perform any troubleshooting for them before clearing Vehicle Control History.

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X0541

Driver Exited Vehicle when Shift Position Wasn't P

History of vehicle speed exceeding threshold after driver left vehicle with shift lever in any position other than P

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X054C

Accelerator Depress when Shift P Position during Ready ON

History of accelerator pedal depressed when shift lever in P and power switch on (READY)

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X055D

Limit to Charge / Discharge Control Value by Hybrid Battery Temperature High

History of HV battery charge/discharge being restricted

If the temperature of the HV battery becomes approximately 44°C (111.2°F) or higher due to high ambient temperature, high cabin temperature, continuous driving under high load (such as mountain driving or frequent acceleration/deceleration), clogged hybrid battery intake duct, etc., the HV battery current will be restricted

In this case the value of WIN/WOUT will decrease and the engine will stop and start less frequently.

1. If this Vehicle Control History item is stored, perform the following inspections.
   • Check the Vehicle Control History freeze frame data.
   • Check for clogs in the hybrid battery intake duct.
   • Inspect the HV battery cooling filter.

     

   • Check the intake port of the HV battery cooling system for blockage, such as luggage, etc.
2. After performing the above inspections, check the temperature of the HV battery in the Data List.

   If the temperature of the HV battery is high (approximately 44°C (111.2°F) or higher), stop the vehicle, turn the air conditioning system on (Temperature: Lo, Blower speed: Max) and perform the Active Test "Control the Hybrid Battery Cooling Fan". Check that the temperature of the HV battery decreases.

3. This Vehicle Control History item may be stored if the temperature of the HV battery became high due to certain conditions, such as if the ambient temperature was high, cabin temperature was high or the vehicle was driven continuously under high load (such as mountain driving or frequent acceleration/deceleration).

   Explain to the customer that this is not a malfunction.

0d

X055E

Limit to Charge / Discharge Control Value by Hybrid Battery

Indicates whether Win/Wout is restricted due to causes other than HV battery temperature.

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X0600

Auxiliary Battery Voltage Low at Start

History of low auxiliary battery voltage at hybrid control system start

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X0601

Auxiliary Battery Voltage Low at IG OFF

History of low auxiliary battery voltage when power switch off

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X0602

Auxiliary Battery Discharge at IG OFF

History of auxiliary battery becoming discharged when power switch off

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X0603

Auxiliary Battery Discharge at Running

History of auxiliary battery becoming discharged while vehicle being driven

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Target Engine Power

Refer to DATA LIST / ACTIVE TEST

Execute Engine Power

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Target Engine Revolution

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Starter Switch Signal

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Engine Idling Request

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Engine Start Request (A/C)

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Engine Start Request (Engine Warm-up)

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Engine Start Request (Hybrid Battery Charging)

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Engine Mode

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Engine Stop Request

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Engine Stop F/C Status

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Lack of Fuel

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Accelerator Position

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Accelerator Pedal Status

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Master Cylinder Control Torque

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Shift Position

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Shift Position (Meter)

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Shift Position Sensor (PNB)

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Shift Position Sensor (PR)

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Shift Position Sensor (DB1)

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Shift Position Sensor (DB2)

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Shift Position Sensor (N)

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Shift Position Sensor (R)

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Shift Position Sensor (P)

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Sports Shift Position

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Sports Shift UP Signal

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Sports Shift DOWN Signal

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Transaxle Oil Temperature

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FR Wheel Speed

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FL Wheel Speed

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RR Wheel Speed

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RL Wheel Speed

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Atmospheric Pressure

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Ambient Temperature

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Smoothed Value of BATT Voltage

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Total Distance Traveled

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Total Distance Traveled - Unit

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IGB Signal Status

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IG2 Signal Status

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Ready Signal

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Request READY ON Prevention (Hybrid Battery Pack Sensor Module Mismatch

Request ready on prevention (hybrid battery pack sensor module mismatch

HV Activate Condition

Refer to DATA LIST / ACTIVE TEST

MG Activate Condition

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DSS Control Status

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Generate Torque (Request from DSS)

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Primary Driving Force Adjustment Result

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WIN Control Limit Power

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WOUT Control Limit Power

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A/C Consumption Power

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EV Mode

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EV Mode Switch

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Sport Mode Switch

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Normal Mode Switch

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Airbag Status (Collision)

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Airbag Status (Normal)

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Crank Position

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Generator Revolution

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Target Generator Torque

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Generator Torque

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Motor Revolution

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Target Motor Torque

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Motor Torque

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Request Motor Regenerative Brake Torque

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Motor Regenerate Brake Execution Torque

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Generator Temperature

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Motor Temperature

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Generator Inverter Temperature

Generator inverter temperature

Motor Inverter Temperature

Refer to DATA LIST / ACTIVE TEST

Generator Inverter Operation Request

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Motor Inverter Operation Request

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Boosting Converter Operation Request

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Generator Carrier Frequency

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Generator Control Mode

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Motor Carrier Frequency

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Motor Control Mode

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Boosting Converter Carrier Frequency

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VL-Voltage before Boosting

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VH-Voltage after Boosting

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Boost Ratio

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DC/DC Converter Output Voltage Control Mode

DC/DC converter output voltage control mode

DC/DC Converter Target Voltage

DC/DC converter target voltage

DC/DC Converter Maximum Output Status

DC/DC converter maximum output status

Inverter Coolant Water Temperature

Refer to DATA LIST / ACTIVE TEST

Inverter Water Pump Revolution

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Inverter Emergency Shutdown (Main CPU)

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Inverter Emergency Shutdown (Sub CPU)

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Hybrid Battery Voltage

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Hybrid Battery Current for Hybrid Battery Control

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Hybrid Battery Current for Hybrid Battery Control (with Correction)

Hybrid battery current for hybrid battery control (with correction)

Hybrid Battery SOC

Refer to DATA LIST / ACTIVE TEST

Hybrid Battery Cooling Fan 1 Integrated Airflow

Hybrid battery cooling fan integrated airflow

Target Hybrid Battery Temperature

Target hybrid battery temperature

Hybrid Battery Maximum Temperature

Highest measured temperature of the HV battery

Hybrid Battery Minimum Temperature

Lowest measured temperature of the HV battery

Hybrid Battery Cooling Fan Intake Air Temperature 1

Battery cooling blower assembly intake air temperature

Minimum Voltage of Hybrid Battery Block

Lowest battery block voltage

Maximum Voltage of Hybrid Battery Block

Highest battery block voltage

Hybrid Battery Block Maximum Delta SOC

Hybrid battery block maximum delta SOC

Hybrid Battery Block Maximum Internal Resistance

Hybrid battery block maximum internal resistance

Average of Gradient Road Surface

Average of gradient road surface

WIN Control Limit Power 2

Charge control wattage sent from battery voltage sensor to hybrid vehicle control ECU

WOUT Control Limit Power 2

Discharge control wattage sent from battery voltage sensor to hybrid vehicle control ECU

Auxiliary Battery Voltage

Refer to DATA LIST / ACTIVE TEST

Auxiliary Battery Current

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Smoothed Value of Auxiliary Battery Temperature

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Auxiliary Battery Voltage at Low Voltage Checking Initiation

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Auxiliary Battery Capacity after IG ON

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Auxiliary Battery Capacity after IG OFF

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Estimated Open Ended Auxiliary Battery Voltage when IG OFF

Estimated value of auxiliary battery open circuit voltage when parked

Auxiliary Battery Charge Rate

Rate of auxiliary battery charging

Auxiliary Battery Charging Rate Accuracy

Accuracy of auxiliary battery charging rate

Low / Middle / High / Disable

Auxiliary Battery Charging Capacity

Full charge capacity of auxiliary battery

Auxiliary Battery Integrated Current

Cumulative auxiliary battery current

Charging Control Mode

Charging control mode of auxiliary battery

SOC Keep / Auxiliary Charge / Refresh Charge / High/Low Temperature / Abnormal

Charging Control Ready Status

Status of charge control being ready

Charging Control Working Factor

Rate of charging control operation

Average Vehicle Speed during Trip

Average vehicle speed during current trip

Auxiliary Battery Integrated Current during Trip

Cumulative auxiliary battery charging current for the current trip

Auxiliary Battery Charging Integrated Current when Trip before Last

Cumulative auxiliary battery charging current for the previous trip

Auxiliary Battery Discharging Integrated Current when Trip before Last

Cumulative auxiliary battery discharging current for the previous trip

Auxiliary Battery Average Current during IG OFF

Average auxiliary battery current when power switch off

IG OFF Time just before IG ON

Number of days power switch was off before turned on (IG)

Auxiliary Battery Average Current when Auxiliary Battery Voltage Low (during IG OFF)

Average auxiliary battery current when auxiliary battery voltage low and power switch off

IG OFF Time when Auxiliary Battery Voltage Low (during IG OFF)

Number of days power switch was off when auxiliary battery low

Elapsed Time during Auxiliary Battery Voltage Low

Time of auxiliary battery being low

Cruise Vehicle Speed

Refer to DATA LIST / ACTIVE TEST (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

Cruise Memory Vehicle Speed

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Cruise Request Throttle Opening Angle

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Cruise Target Acceleration

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Driving Support ECU Target Acceleration

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Cruise Request Driving Force

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Cruise Request Driving Force Feedback Status

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Cruise Control Permission Condition

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Cruise Control Condition

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Cruise Main Switch Operation Condition

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Accelerator Pedal

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Cruise Brake Cancel Switch

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Stop Light Switch Main-CPU

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Stop Light Switch Sub-CPU

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Request Manual Cancel

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Request Automatic Cancel

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Cruise Brake Control Decision

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Cruise Brake Control Permission Condition

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