HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): Pattern Select Switch EV Mode Circuit; 2020 - 2024 MY RAV4 HV [06/2020

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001OBDL
Model Year Start: 2020	Model: RAV4 HV	Prod Date Range: [06/2020 - ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): Pattern Select Switch EV Mode Circuit; 2020 - 2024 MY RAV4 HV [06/2020 - ]

Pattern Select Switch EV Mode Circuit

DESCRIPTION

The EV mode signal will be sent to the hybrid vehicle control ECU assembly when the EV mode switch (integration control and panel assembly) is operated. If the specified conditions are met, the system enters EV mode and the vehicle will be driven using EV mode. This signal is then transmitted from the hybrid vehicle control ECU assembly via CAN to the combination meter assembly to illuminate the EV mode indicator.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

Depending on the condition of the hybrid control system and the driving conditions, the drive mode may not be able to be changed to EV mode and a warning message will be displayed on the multi-information display.

HINT:

Under the following conditions, the drive mode will not be able to be changed to EV mode:

The hybrid control system is extremely hot.
The hybrid control system is extremely cold.
The engine is warming up.
The SOC (State of Charge) of the HV battery is low.
The vehicle is being driven at a speed higher than the specified value.
- The vehicle speed is approximately 40 km/h (25 mph) or higher.
The accelerator pedal is being fully depressed or the vehicle is climbing a slope.
The defroster is on.
DTCs are stored.

PROCEDURE

1.	ASK ABOUT VEHICLE CONDITION

(a) Check if a buzzer sounded and a message was displayed on the multi-information display when attempting to enter EV mode.

Result	Proceed to
No buzzer sounded and no message was displayed on multi-information display.	A
A buzzer sounded and a message was displayed on multi-information display.	B

HINT:

If a buzzer sounds or a message is displayed on the multi-information display, one or more of the EV mode entry conditions have not been met. Check that all of the EV mode entry conditions have been met before pressing the EV mode switch.

END

2.	READ VALUE USING TECHSTREAM (CAN BUS CHECK)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: System Select / CAN Bus Check.

CAN Bus Check

Result	Proceed to
All of the ECUs and sensors that are currently connected to the CAN communication system are displayed.	A
None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed.	B

(e) Turn the ignition switch off.

GO TO CAN COMMUNICATION SYSTEM

3.	CHECK DTC OUTPUT (HEALTH CHECK)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: System Select / Health Check.

(e) Check for DTCs.

Result	Proceed to
No DTCs are output.	A
DTCs are output.	B

(f) Turn the ignition switch off.

GO TO DTC CHART

4.	READ VALUE USING TECHSTREAM (EV MODE, EV MODE SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Hybrid Control / Data List / EV Mode, EV Mode Switch.

Powertrain > Hybrid Control > Data List

Tester Display
EV Mode
EV Mode Switch

(e) Read the value displayed on the Techstream.

Powertrain > Hybrid Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

EV Mode

EV mode transition availability

ON or OFF

In EV mode:

EV Mode Switch

EV mode switch (integration control and panel assembly) condition

ON or OFF

EV mode switch (integration control and panel assembly) being pushed and held:

EV mode switch (integration control and panel assembly) not operated:

OFF

Result	Proceed to
The display changes according to the EV mode switch operation.	A
The display does not change according to the EV mode switch operation.	B

(f) Turn the ignition switch off.

GO TO PROBLEM SYMPTOMS TABLES

5.	INSPECT EV MODE SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)

Click here

REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY

6.	CHECK HARNESS AND CONNECTOR (EV MODE SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) - BODY GROUND)

(a) Disconnect the G32 EV mode switch (integration control and panel assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G32-13 (GND) - Body ground	Always	Below 1 Ω

*a	Front view of wire harness connector (to EV Mode Switch (Integration Control and Panel Assembly))

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.	CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - EV MODE SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY))

(a) Disconnect the A30 hybrid vehicle control ECU assembly connector.

(b) Disconnect the G32 EV mode switch (integration control and panel assembly) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A30-33 (EVSW) - G32-6 (S)	Always	Below 1 Ω
A30-33 (EVSW) or G32-6 (S) - Body ground	Always	10 kΩ or higher

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

Front view of wire harness connector

(to EV Mode Switch (integration control and panel assembly))

(d) Reconnect the G32 EV mode switch (integration control and panel assembly) connector.

(e) Reconnect the A30 hybrid vehicle control ECU assembly connector.

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR