1. Contents
Click a Section Tab

2. Overall
System Diagram
Components
Precaution for High-voltage Circuit
MG (Motor Generator)
Inverter with Converter Assembly
HV Battery
HV Control System
Special Notes on Service

3. Overall Main Components -A -W [Electric Power Path] : AC : DC
Hybrid Vehicle Transaxle Assembly
Engine
Power Split Planetary Gear Unit
MG1
HV Battery
MG2
Motor Speed Reduction Planetary Gear Unit
Inverter with Converter Assembly

4. Overall Gear Train 2 planetary gear units MG2 MG1 Engine Counter Gear-W
Gear Train
2 planetary gear units
MG1
MG2
Engine
To Front Wheel
Counter Gear
Engine: Planetary Carrier (Power Split Planetary Gear Unit)
MG1: Sun Gear (Power Split Planetary Gear Unit)
MG2: Sun Gear (Motor Speed Reduction Planetary Gear Unit)

5. Overall Nomographic Chart-W
Nomographic Chart
Power Split Planetary Gear Unit
Motor Speed Reduction Planetary Gear Unit
Sun Gear
(MG1)
Carrier
(Engine)
Ring Gear
(Wheel)
(Fixed)
(MG2)
rpm, Torque
(+)
(-)
Vertical lines show rpm and direction of rotation
Spaces between vertical lines show gear ratios
Arrows show torque direction
Vertical lines show rpm and direction of rotation
Spaces between vertical lines show gear ratios
Arrows show torque direction (Red: Discharge / Blue: Charge)
- MG1, MG2 Condition -
Rotation Direction of MG + -
Torque
Discharge
Charge

6. Click an illustration to open a master sheet
System Diagram -A -W
System Diagram (Overall)
Click an illustration to open a master sheet

7. Components Layout of Main Components -A -W HV Battery Unit
Battery Module (DC V)
HV Junction Block Assembly
Battery Smart Unit
Auxiliary Battery
(Sealed Type)
2AR-FXE Engine
Electric Inverter Compressor with A/C Inverter
[Major Difference from Previous CAMRY HV (AHV40)]
Inverter with Converter Assembly - Location of the DC/DC converter for auxiliary battery is changed from the HV battery unit.
Hybrid Transaxle - Oil pump with motor assembly is newly adopted.
Power Cable
Power Management Control ECU (HV CPU)
Inverter with Converter Assembly
Boost Converter • Inverter
MG ECU
DC/DC Converter for Auxiliary Battery
P314 Hybrid Transaxle
MG1 • MG2
Oil Pump with Motor Assembly

8. Precaution for High-voltage Circuit-W
Safety Precautions
Before inspecting or servicing the high-voltage system, be sure to follow all safety measures
CAUTION
Turn the power switch OFF, and remove the key from interior detection area for entry and start system
Disconnect the cable from auxiliary battery negative terminal
Check the insulated gloves
Remove the service plug grip
Wait for 10 minutes or more to discharge the high-voltage capacitor inside the inverter assembly
Measure the inverter terminal voltage (0V Check)
Insulate the disconnected high-voltage connector with insulated vinyl tape

9. Precaution for High-voltage Circuit-W
Safety Precautions
2. Disconnect the cable from auxiliary battery negative terminal
Sealed type battery is used and located in the luggage compartment
: Clip
Auxiliary Battery
Luggage Trim Service Hole Cover

10. Precaution for High-voltage Circuit-W
Safety Precautions
3. Check the insulated gloves
Before using insulated glove, be sure to check them for cracks, tears and other types of damage
[Recommended Procedure]    
Place the glove on its side.
Roll the opening up 2 or 3 times.
Fold the opening in half to close it.
Confirm that there are no air leaks.

11. Precaution for High-voltage Circuit-W
Safety Precautions
4. Remove the service plug grip and keep the removed service plug grip in your pocket
Service Plug Cover 1 2 3
Luggage Compartment Trim Cover FR
[Removal of Service Plug Grip]
Accompanying work is necessary to access the service plug grip.
Remove the luggage compartment floor mat, luggage compartment trim cover FR, luggage trim service hole cover.
Remove the 2 nuts and service plug cover.
NOTICE:
Keep the removed service plug in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage components.
Service Plug Grip
Luggage Compartment Floor Mat 4
Keep in your pocket
Luggage Trim Service Hole Cover

12. Precaution for High-voltage Circuit-W
Safety Precautions
5. After removing the service plug, wait 10 minutes or more to discharge high-voltage capacitor
High-voltage Capacitor
Discharge 0V
NOTICE:
After removing the service plug, wait 10 minutes or more to discharge high-voltage capacitor.
Elect-ricity
Temporary
Service plug removal
10 min.

13. Precaution for High-voltage Circuit-W
Safety Precautions
6. Make sure the high-voltage capacitor terminal voltage is 0V (Tester range: 750 V or more)
Remove the 2 bolts and connector cover
Minus Terminal
0 V
Temporary
High Voltage Fuse
Plus Terminal
[High-voltage Capacitor Terminal]

14. Precaution for High-voltage Circuit-W
Safety Precautions
7. Insulate the disconnected high-voltage connector with insulated vinyl tape
Insulated Vinyl Tape

15. Permanent Magnet Motor
MG (Motor Generator) -A -W
Features
As with the previous CAMRY HV, compact, lightweight and highly efficient alternating current permanent magnetic motors are used
[Specifications]
New CAMRY HV
Previous CAMRY HV
MG1
Type
Permanent Magnet Motor 
Max. System Voltage
DC 650 V
MG2
Max. Output
105 kW (141 HP)
Max. Torque
270 N·m (199 ft.·lbf) *
669 N·m (403 ft.·lbf)
Cooling System
Water-cooled
*: Torque is boosted 2.48 times by the motor speed reduction planetary gear unit.

16. Inverter with Converter Assembly
Features
Inverter with converter assembly is located in the engine compartment
High-voltage Cable Connector for MG2
High-voltage Cable Connector for HV Battery
High-voltage Cable Connector for MG1
Inverter with Converter Assembly
High-voltage Cable Connector for Electric Inverter Compressor with A/C Inverter
Low-voltage Cable Connector

17. Inverter with Converter Assembly
Component
Inverter with converter assembly that has a multi-layer structure and mainly consists of the inverter, boost converter, MG (Motor Generator) ECU and DC/DC converter
Connector Cover (with Interlock Switch)
MG ECU Portion
Inverter and Boost Converter Portion
[Major Difference from Previous CAMRY HV]
Location of DC/DC converter is changed from HV battery to inverter with converter assembly
DC/DC Converter Portion
Inverter with Converter Assembly

18. Inverter with Converter Assembly
System Diagram
HV Battery Unit (DC V)
Inverter with Converter Assembly
Hybrid Transaxle
Battery Modules
Boost Converter (DC V  DC 650 V [Max.])
Inverter (DC  AC)
MG2
MG1
for MG2
SMRs
DC/DC Converter [Auxiliary Battery] (DC V  DC 14 V)
for MG1 DC
244.8 V
Electric Inverter Compressor with A/C Inverter
Auxiliary Battery

19. Inverter with Converter Assembly
System Diagram
Boost converter + Inverter
Inverter with Converter Assembly
Boost Converter (DC)
Inverter (AC)
IGBT
IPM
IPM
IGBT
Reactor
MG1
HV Battery
IPM: Intelligent Power Module
IGBT: Insulated Gate Bipolar Transistor
The inverter uses the IPM to perform switching control. The IPMs for MG1 and MG2 each have a bridge circuit consisting of IGBTs. The IPM for MG1 uses 6 IGBTs, one for each arm, and MG2 uses 6 pairs of IGBTs, two in parallel for each arm.
MG2
DC/DC Converter
Cooler Compressor with Motor Assembly

20. Inverter with Converter Assembly
Atmospheric Pressure Sensor
Provided on the MG ECU board. The sensor detects atmospheric pressure and transmits a signal to the MG ECU to allow corrections that correspond to the usage environment
Breakdown Voltage (kV)
[Breakdown Voltage vs. Pressure x Gap]
Pressure x Gap (Fixed: 1 cm)
Figure is Paschen curve (Paschen’s Law).
The law essentially states that the breakdown voltage of parallel plates in a gas as a function of pressure and gap distance, usually written as V= f (pd), where p is the pressure, d is the gap distance and f is the proportional.

21. Inverter with Converter Assembly
Atmospheric Pressure Sensor
Relation DTCs of atmospheric pressure sensor
DTC No.
INF Code
Detection Item
DTC Detection Condition
P0069
273
Manifold Absolute Pressure – Barometric Pressure Correction
Difference between the atmospheric pressure value of the atmospheric presser sensor in the inverter with converter assembly and the manifold absolute pressure sensor (for EGR control) exceeds a specified value. The same condition recurs within 3 hours when driving in EV mode
P2228
268
Barometric Pressure Sensor “A” Circuit Low
Open or short to GND in the atmospheric pressure sensor
P2229
269
Barometric Pressure Sensor “A” Circuit High
Short to +B in the atmospheric pressure sensor

22. Inverter with Converter Assembly
Cooling System
Inverter assembly is cooled by the dedicated radiator of a cooling system that is separate from that of the engine cooling system
[HV Coolant Flow Path]
HV Radiator Reserve Tank
HV Water Pump with Motor
HV Radiator Reserve Tank
HV Water Pump with Motor
HV Radiator (for Inverter)
This cooling system (HV water pump with motor) always activates when the power mode is selected to READY-ON state.
Radiator for inverter is located in front of A/C condenser
HV Radiator
Inverter with Converter Assembly
Inverter with Converter Assembly
HV Transaxle (MG1 and MG2)
HV Transaxle

23. Inverter with Converter Assembly
Cooling System
Maintenance interval of coolant is slightly changed
New CAMRY HV
Previous CAMRY HV
Coolant Type
TOYOTA Genuine Super Long Life Coolant (SLLC) or Equivalent 
Capacity [Liters (US qts, Imp. qts)]
3.2 (3.4, 2.8)
2.9 (3.1, 2.6)
Maintenance Interval
Inspect -A
U.S.A.*
Every miles
Canada
Every km -W
General Countries
Every km —
Replace
First Time
miles
miles km km
Subsequent
Every miles
Every km
*: Including US possession

24. Service Point (Inverter with Converter Assembly)
Hybrid System Coolant Replacement
Draining method
Drain plug for hybrid system coolant
Temporary
Filler Plug for Hybrid Transaxle Fluid (10 mm Hexagon)
Front
Measure the volume of the drained coolant, and replace it with a volume that is greater than the drained coolant (as a guide for bleeding air).
NOTICE: Never use the drained coolant.
Drain Plug for Hybrid Transaxle Fluid (10 mm Hexagon)
Drain Plug for Hybrid System Coolant (10 mm Hexagon)
Temporary

25. Service Point (Inverter with Converter Assembly)
Hybrid System Coolant Replacement
Refilling method
for HV System
Slowly pour coolant into the reserve tank until it reaches the F line.
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Active Test / Activate the Water Pump.
Keep the coolant at the F line in the reserve tank to compensate for the drop in coolant level when the air bleeds.
for Engine
HINT:
Loud noise made by the water pump and poor circulation of coolant in the reserve tank indicates that there is air in the cooling system.
Standard:
Air bleeding from the inverter cooling system is completed when the noise made by the water pump becomes smaller and the circulation of coolant in the reserve tank improves.
NOTICE:
Do not reuse the drained coolant because it may contain foreign objects.

26. Service Point (Inverter with Converter Assembly)
Hybrid System Coolant Replacement
Refilling method (continued)
If the vehicle is driven with air in the coolant system, the following DTCs may appear
DTC No.
INF Code
DTC Item
P0A01
725
Motor Electronics Coolant Temperature Sensor Circuit Range / Performance
726
P0A78
284
Drive Motor “A” Inverter Performance
286
P0A7A
322
Generator Inverter Performance
324
P0A93
346
Inverter Cooling System Performance
P0A94
553
DC / DC Converter Performance
557
P0AEE
266
Motor Inverter Temperature Sensor “A” Circuit Range / Performance
277
P3221
314
Generator Inverter Temperature Sensor Circuit Range / Performance
315
P3226
562
DC / DC Boost Converter Temperature Sensor
563

27. Service Point (Inverter with Converter Assembly)
Precautions before Removing
Before removing and installing the inverter with converter assembly, make sure the minus terminal of the auxiliary battery was disconnected to prevent short circuit of the AMD terminal
AMD Terminal
Engine Room Junction Block Assembly
Inverter with Converter Assembly
DC/DC Converter
AMD Terminal
Auxiliary Battery

28. HV Battery -A -W
Features
Basic construction is the same as the previous model
Major difference from previous model
New CAMRY HV
Previous CAMRY HV
Battery Module
Type
Sealed Nickel Metal Hydride Battery 
Cell Quantity
204 cells
(6 cells x 34 modules)
Nominal Voltage
244.8 V (1.2 V x 204 cells)
Service Plug Grip
Main Fuse
125 A
HV Battery Cooling Blower
Motor Type
Brushless Motor
Fan Type
Sirocco Fan
HV Battery Temp. Sensor
for Intake Air x 1
for Battery Module x 3
HV Junction Block Assembly
SMRs (SMRB / SMRG / SMRP), Precharge Resister, HV Battery Current Sensor
SMRs (SMRB / SMRG), HV Battery Current Sensor
SMRP and Precharge Resistor built into DC/DC converter

29. HV Battery Main Components-W
Main Components
HV battery unit mainly consists of the following components
No. 1 Hybrid Battery Intake Duct
Battery Cooling Blower Assembly (Brushless)
Battery Cover Lock Striker
No. 2 Hybrid Battery Intake Duct
HV Junction Block Assembly
HV battery locates in the luggage compartment behind the rear seat.
Location of the air intake for cooling fan is changed from the rear package tray trim to the left side of the rear seat.
Battery Cover Lock Striker
Front
Service Plug Grip
HV Battery
Battery Smart Unit

30. HV Battery HV Junction Block Assembly-W
HV Junction Block Assembly
Three SMRs are relays that connect and disconnect the power source of the high-voltage circuit
SMRG
Power Management Control ECU (HV CPU)
SMRB
HV Battery
Current Sensor
SMRB
Precharge Resistor
SMRP
SMRP
Current Sensor
SMRG: System Main Relay Ground
SMRB: System Main Relay Battery
SMRP: System Main Relay Precharge
HV Junction Block Assembly
Service Plug Grip
Battery Modules
Resistor
SMRG
Front
NOTE:
Do NOT remove SMRs on the HV junction block assembly.

31. HV Battery Battery Smart Unit-W
Battery Smart Unit
Monitors the condition of HV battery (Voltage, current and temp.) and the high-voltage system for breakdown of the electrical insulation
Battery Smart Unit
Battery Smart Unit
HV Battery Information
Insulation Resistance of High-voltage System
HV Battery Information
Power Management Control ECU (HV CPU)
Temp. x 4
Voltage x 17 +
Temp. Sensors
Service Plug Grip
Current Sensor
Front
HV Battery -

32. HV Battery Cooling System Control for HV Battery-W
Cooling System Control for HV Battery
To ensure the proper performance of the HV battery while it generates heat during the repetitive charge and discharge cycles, a dedicated cooling system is used for the HV battery
Air Intake (Left side of rear seat)
Hybrid Battery Intake Ducts
Battery Cooling Blower Assembly
The HV battery cooling blower assembly has a built-in motor controller, and is controlled in a variable manner by the duty cycle signal from the power management control ECU (HV CPU).
[Location of HV Battery Temperature Sensor]
For Battery Module (3 sensors) - TB0: No. 1 module (First module) - TB1: No. 27 module - TB2: No. 34 module (Last module)
For Intake Air (1 sensor) - Around No. 4 module
HV Battery
Cooling Air Flow
[HV Battery Temperature Sensor]
: for Battery Module
: for Intake Air

33. HV Control System Various Driving Modes-W
Various Driving Modes
CAMRY HV has various driving modes
EV Drive Mode Indicator Light
ECO MODE Indicator Light
EV Indicator Light
EV Drive Mode Indicator Light
Driving with only the electric motor
EV Indicator Light
(W/ customize function)
Informs the driver that the vehicle is in EV drive
EV Drive Mode Switch
By using ECO MODE switch, system output characteristic for accelerator pedal operation is enabled to suit driver mind-set and operating conditions. Moreover, EV Drive Mode enables the vehicle to drive with only MG2 without using engine.
EV Drive Mode Indicator Light - EV drive mode indicator light informs the driver that the EV drive mode is entered. - In the EV drive mode, the vehicle runs like an electric vehicle that is driven with only the electric motor.
EV Indicator Light - EV indicator light informs the driver that the vehicle is in EV drive by illuminating the indicator light. - Function of EV indicator light can be turned on/off by customizing setting on the combination meter (New function)
ECO MODE Indicator Light - ECO MODE indicator light informs the driver that the ECO drive mode is entered. - This mode moderates the response of the accelerator pedal operation to support ECO driving.
ECO MODE Indicator Light
Moderates the response of the accelerator pedal operation to support ECO driving
ECO MODE Switch

34. Reference (HV Control System)-A -W
Various Driving Modes
Location of EV Drive Mode switch and ECO MODE switch differ depending on the production area
[TMC Made]
[TMMK Made]

35. HV Control System EV Drive Mode ( )-A -W
EV Drive Mode ( )
In the EV drive mode, the vehicle runs like an electric vehicle that is driven with only the electric motor
When all conditions in the table below are satisfied, the EV drive mode can be used
Operating Condition
The hybrid system temperature is not high (The hybrid system temperature will be high when the outside air temperature is high or after the vehicle has traveled up a hill or at high speeds).
The hybrid system temperature is not low (The hybrid system temperature will be low after the vehicle has been left for a long time when the outside air temperature is low).
Engine coolant temperature is the approx. 0 deg C (32 deg F) or more.
The SOC is approx. 50 % or more (Level 4 or more).
The vehicle speed is approx. 45 km/h (28 mph) or less.
The accelerator pedal depression amount is a certain level or below.
The defroster is off.
The cruise control system is not operating.
Temporary
EV drive mode will achieve a low level of noise as well as reduction of the emission gas by residential areas in the midnight or in the covered parking lot.
Hybrid vehicle is designed to have the best fuel economy during normal driving (driving using a combination of gasoline engine and electric motor power). Frequent use of the EV drive mode may worsen fuel economy.
Reference: Available driving range differs depending on factors such as the HV battery charging level or air conditioning condition, the driving range is from about several hundred meters to 2 km (about 1.2 miles).

36. HV Control System EV Drive Mode ( )-A -W
EV Drive Mode ( )
Indicator of the EV drive mode is changed
New CAMRY HV
Conventional Hybrid Vehicle
EV Drive Mode
(EV driving mode is selected)
&
During EV driving in HV mode (Driving with only the electric motor) — * *
*: Function of EV indicator light can be turned on/off by customizing setting on the combination meter.

37. Accelerator Pedal Opening Angle
HV Control System -A -W
ECO Drive Mode ( )
Optimizes fuel economy and driving performance by gently generating the motive force against the accelerator pedal operation
Normal
Motive Force Output
ECO drive mode control balances driving performance, air conditioning performance and fuel economy performance using control that prioritizes fuel economy performance.
ECO Mode
Accelerator Pedal Opening Angle

38. HV Control System ECO Drive Mode ( )-A -W
ECO Drive Mode ( )
At the same time, it supports Eco driving by optimizing the air conditioning performance
Control
Efficiency
Outline
Inside/outside Air Switch Control
Reduce Power Consumption
Automatically switches the air inlet port to recirculation mode when the outside air temperature is equal to or higher than a predetermined temperature.
Blower Level Control
Sets the blower level in AUTO mode lower than normal.
PTC Heater Control
Suppresses the power consumption.
Compressor Speed
Restriction Control
Restricts the maximum compressor speed during cooling.
Heating Restriction
Reduce Fuel Consumption
Changes the air outlet temperature by entering ECO mode during heating and increases the amount of engine-off time.
Under the control of the ECO Drive Mode, the air conditioning amplifier assembly restricts the air conditioning system performance under specified conditions, thus improving fuel economy.

39. HV Control System Brake Override System-W
Brake Override System
When the brake pedal is depressed while driving with the accelerator pedal depressing, this system may restrain the hybrid system output and support brake performance
Accelerator pedal is depressed
Both pedals are depressed
Restrain the hybrid system output
Hybrid System Output
Restraint
Time
Operation start conditions are met

40. HV Control System Brake Override System System Diagram -A -W
Accelerator Pedal Position
Power Management Control ECU (HV CPU)
Accelerator Pedal Position Sensor
Brake Master Cylinder Pressure
This system decreases the accelerator pedal position value used for the hybrid system output control to a predetermined value
Skid Control ECU
Vehicle Speed
Inverter with Converter Assembly
Speed Sensors (x 4)
ECM
MG ECU
Brake Booster
with Master Cylinder
Throttle Control Motor
MG2

41. HV Control System Brake Override System Operation Conditions -A -W
New CAMRY HV
Gasoline Engine Model
Operation Start Condition
(All conditions are met)
Accelerator pedal position is more than predetermined value. 
Brake pedal is depressed with accelerator pedal. (Brake master cylinder pressure is more than predetermined value)
Brake pedal is depressed with accelerator pedal. (Stop light switch is ON)
Deceleration Judgment is ON*.
Vehicle speed is more than predetermined value.
Operation Stop Condition
(One of the conditions is met)
Accelerator pedal is depressed or released.
Brake pedal is released. (Brake master cylinder pressure decreases to predetermined value)
Brake pedal is released. (Stop light switch is OFF)
*: There is a case that the deceleration judgment is not performed according to the conditions of accelerator pedal position and vehicle speed.

42. Reference (HV Control System)-A -W
Brake Override System
Hybrid system output restriction control
Conventional HV system has the function of system output restriction control
[HV Models with BOS]
[HV Models without BOS]
Accelerator Pedal Position Sensor
Accelerator Pedal Position Sensor
Power Management Control ECU (HV CPU)
Power Management Control ECU (HV CPU)
Decreases the accelerator pedal position value used for HV system control
Engine output is restricted by fuel cut control, but operation of MG2 does not restrict.
In conventional HV system, the system output restriction method differs from models with BOS, but there is no change in the effect of the system output restriction control.
Fuel Cut
MG ECU
ECM
MG ECU
ECM
MG2
Throttle Control Motor
MG2
Throttle Control Motor

43. Connector for Electric Inverter Compressor with A/C Inverter
HV Control System -A -W
Cutoff of High-voltage Circuits
Interlock switch (connector)
Inverter with converter assembly portion
HV battery portion
Connector
Connector for MG1 / MG2
Connector
Connector
Connector
Service Plug
Connector for Electric Inverter Compressor with A/C Inverter
Temporary

44. HV Control System Cutoff of High-voltage Circuits-W
Cutoff of High-voltage Circuits
High-voltage circuits can be cut off either automatically or manually to prevent electrocution.
System Main Relays for Automatic Cutoff
SMRs
Service Plug for Manual Cutoff
Cutoff with the power switch
Power Switch
Center Airbag Sensor Assembly
Cutoff in the event of a collision
Interlock Switch (Service Plug Grip)
Interlock Switch (Inverter Connector Cover)
Service Plug Grip
Center airbag sensor assembly sends the airbag deployment signal to power management control ECU (HV CPU) via the direct line.
Circuit breaker sensor is discontinued.
Power Management Control ECU (HV CPU)
Cutoff when the interlock device is activated
Interlock Switches
(High-voltage Connector for MG1 / MG2)
Interlock Switch
(High-voltage Connector for Electric Inverter Compressor with A/C Inverter)

45. HV Control System Cutoff of High-voltage Circuits-W
Cutoff of High-voltage Circuits
High-voltage circuits can be cut off either automatically or manually to prevent electrocution.
Automatic Cutoff [System Main Relays] (SMRs)
Cutoff with the power switch
SMRs are turned OFF when the driver turns the power mode OFF.
Cutoff in the event of a collision
The power management control ECU (HV CPU) receives an airbag deployment signal from the center airbag sensor assembly, it turns off the SMRs.
Cutoff when the interlock device is activated
The interlock device detects whether the service plug grip is installed. If the technician forgets to remove the service plug grip, and they perform a high-voltage operation, removing the inverter with converter assembly cover will turn OFF the SMRs due to the interlock circuit.
Manual Cutoff with Service Plug Grip
The service plug grip located in the middle of the HV battery makes it possible to cut off all high-voltage circuits.
Remove the service plug grip when inspecting or maintaining high-voltage circuits. (Wait for 10 min. after removing the service plug grip)

46. Special Notes on Service-W
If a Battery is Discharged
When the battery is discharged, the following conditions occur:
Auxiliary battery (Rechargeable)
No combination meter display even with the power mode ON.
Unable to enter the READY-ON state.
Headlights are dim and the horn sound is weak.
HV battery (Rechargeable)
The hybrid system detects abnormality and displays a warning message on the multi-information display.
DTC P , 389 (HV battery malfunction) is stored in the power management control ECU (HV CPU)

47. Special Notes on Service-W
Auxiliary Battery
Sealed type battery is used. Therefore, never use a quick charger.
Charging
Charge at 5.0 A or less within 12 hours
Replacement
Replace dedicated battery for CAMRY HV (S55D23R or S65D26R*)
Battery Temp. Sensor
Hydrogen Drain Hose
[Auxiliary Battery]
TMMK Made - S55D23R as STD / S65D26R for models with sliding roof system
TMC Made - S55D23R for all models as STD (even if sliding roof system is equipped)
Auxiliary Battery
Luggage Compartment
*: Models with sliding roof system on TMMK made

48. Special Notes on Service-W
Auxiliary Battery
Connecting location of booster cable
Positive booster terminal is not equipped
Luggage Compartment Door Lock Striker

49. Special Notes on Service-W
HV battery
Actions to be taken when HV battery is discharged
Using the THS charger, charge the HV battery
SST (High Voltage Cable)
THS Charger (SST)
SST (Low Voltage Cable)
Grounded AC 100 to 240 V Receptacle

50. Special Notes on Service-W
HV battery
SST for HV battery charging
Part No.
Part Name
Figure
THS Charger Set
THS Charger
THS Charger Case
XXX*
THS Charger AC Cable
(Illustration is Plug Type C for Europe)
*: Plug Type differs depending on the countries.

51. Special Notes on Service-W
HV battery
SST for HV battery charging (continued)
Part No.
Part Name
Figure
09882-XXXXX (TBA)
High Voltage Cable
Bolt
Low Voltage Cable
NOTE:
This SST ( : Interlock Cover) is not used. Because, high voltage connector does not have interlock connector.

52. Special Notes on Service-W
HV battery
HV battery charging procedure (Point)
Measure the auxiliary battery voltage
Approximately 11 V or more
Check the charge level of the HV battery
Check whether the engine cannot start
HINT:
If voltage is 10 V or less, charge the auxiliary battery (charging usually takes about 1 hour)
HINT:
If the engine starts, leave it idling with park (P) selected until the engine stops [self charge has completed]

53. Special Notes on Service-W
HV battery
HV battery charging procedure (Point)
Preparation for HV Battery Charging
Remove the 2 bolts and connector cover.
Check the inverter terminal voltage (0 V Check).
Remove the bolt, and disconnect the wire harness clamp and the No. 4 floor wire connector.
Temporary
<Safety Precautions>
Before HV battery charging operation, be sure to follow all safety measures.
Turn the power switch OFF, and remove the key from interior detection area for entry and start system.
Disconnect the cable from auxiliary battery negative terminal.
Check the insulated gloves.
Remove the service plug grip.
Wait for 10 minutes or more to discharge the high-voltage capacitor inside the inverter assembly.
Measure the inverter terminal voltage (0V Check).
Insulate the disconnected high-voltage connector with insulated vinyl tape.

54. Special Notes on Service-W
HV battery
HV battery charging procedure (Point)
Connect the THS charger
NOTICE: Connect all THS charger cables in the order to shown by the circled numbers in illustration to prevent electrical shock.
SST (High Voltage Cable) 4 5 6
Connecting Order
EV bonding cable (Green cable) of low voltage cable to No. 5 inverter bracket
EV bonding cable of low voltage cable to THS charger
EV bonding cable of low voltage cable to connector cover of inverter with converter assembly
High voltage cable to No. 4 floor wire connector
Low voltage cable to THS charger
High voltage cable to THS charger
Plug of THS charger into an outlet 2 3 1
THS Charger (SST) 7
SST (Low Voltage Cable)

55. Special Notes on Service-W
HV battery
HV battery charging procedure (Point)
Connect the THS charger (Continued)
Connect the high voltage cable (SST) to the No. 4 floor wire with the bolt ( )
Bolt
( )
No. 4 Floor Wire
HINT:
When connecting the high voltage cable, use a bolt with a nominal diameter of 6 mm, a shaft length of 69 mm and a pitch of 1.5 mm.
High Voltage Cable (SST)
NOTICE:
The installation bolt that comes with the vehicle is too short to securely connect the No. 4 floor wire to the high voltage cable of the charger.
Do not use the bolt ( ) used for connecting the high voltage cable when reconnecting the No. 4 floor wire to the vehicle.

56. Special Notes on Service-W
HV battery
HV battery charging procedure (Point)
HV Battery Charging
Turn the power switch of the vehicle on (IG).
Connect the Techstream / Intelligent Tester to the DLC3.
Enter the following menus: Powertrain / Hybrid Control / Active Test / Battery Charge.
NOTICE:
During the “Battery Charge” Active Test, check “System Main Relay Status – SMRB” and “System Main Relay Status – SMRG” in the Data List.
If the Data List values are not as specified in the table below, turn the Techstream / Intelligent Tester and the power switch off and then perform the Charge Battery procedure again.
Step
Active Test
“Battery Charge”
THS charger START Switch
Data List System Main Relay Status
SMRB Status
SMRG Status 1
OFF 2
OFF  ON 3 ON

57. Special Notes on Service-W
Inspection Mode
Set to the Inspection Mode before performing the following operation
Inspection Mode
(Tester Display)
Purpose
Control
MAINTENANCE MODE
(2WD for measuring Exhaust Gas)
Inspection of ignition timing etc. when performing engine maintenance, idle speed exhaust emissions testing (CO, HC), etc.
Tests using a speedometer tester, two-wheel chassis dynamometer, etc.
Keeps the engine idling when the shift position is P
Cancels traction control
CERTIFICATION MODE
(2WD for cutting TR(A)C)
NOTICE:
Driving the vehicle without deactivating inspection mode may damage the hybrid transaxle.

58. Special Notes on Service-W
Inspection Mode
Inspection Mode procedure (not using tester)
OFF >>>IG-ON
IG-ON >>> READY
within 60 seconds P N P
Shift Position
Combination Meter
The inspection mode has 2 methods to activate, one is a method using the tester, and other one is a method not using the tester.
Activating Inspection Mode (using tester) [Example for MAINTENANCE MODE] - Select from the tester menus: Powertrain >>> Hybrid Control >>> Utility >>> Inspection Mode – 2WD for measuring Exhaust Gas - Check that the “MAINTENANCE MODE” is displayed on the multi-information display. Then turn the power switch to READY-ON state while depressing the brake pedal.
The inspection mode procedure (not using tester) is the same as the PRIUS (ZVW30)
Pedal operation (2 times): MAINTENANCE MODE (2WD for measuring Exhaust Gas)
Pedal operation (3 times): CERTIFICATION MODE (2WD for cutting TR(A)C)
During Inspection Mode
READY indicator light and slip indicator light in the combination meter will illuminate.
MAINTENANCE MODE
Depress Twice
Depress Twice
Depress Twice
Accelerator Pedal Operation
Depress 3 times
Depress 3 times
Depress 3 times
READY
CERTIFICATION MODE
NOTICE: When operating Inspection Mode, apply the parking brake securely to prevent the vehicle moves