Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001H3KQ
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [02/2019 -           ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for AWD with NICKEL METAL HYDRIDE BATTERY): Transmission Control Switch Circuit; 2019 - 2025 MY RAV4 HV [02/2019 -        ]

Transmission Control Switch Circuit

DESCRIPTION

When the shift lever is in S, different ranges can be chosen using the floor shift sequential gate.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING TECHSTREAM (SPORTS SHIFT POSITION)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Sports Shift Position.

Powertrain > Hybrid Control > Data List

Tester Display

Sports Shift Position

(d) Read the value displayed on the Techstream.

Powertrain > Hybrid Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Sports Shift Position

Sports shift position

0 to 255

Shift lever in S, "+" or "-": 1 to 6

Shift lever in any position other than S, "+" and "-": 255

Result

Proceed to

The Techstream display changes according to the shift lever operation.

A

The Techstream display does not change according to the shift lever operation.

B

(e) Turn the ignition switch off.

B

GO TO STEP 4

A

2.

READ VALUE USING TECHSTREAM (SPORTS SHIFT UP SIGNAL, SPORTS SHIFT DOWN SIGNAL)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Sports Shift UP Signal, Sports Shift DOWN Signal.

Powertrain > Hybrid Control > Data List

Tester Display

Sports Shift UP Signal

Sports Shift DOWN Signal

(d) Read the value displayed on the Techstream.

Powertrain > Hybrid Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Sports Shift UP Signal

Operation of "+" transmission control switch.

ON or OFF

Shift lever held in "+" operated: ON

Shift lever in S: OFF

Sports Shift DOWN Signal

Operation of "-" transmission control switch.

ON or OFF

Shift lever held in "-" operated: ON

Shift lever in S: OFF

Result

Proceed to

The Techstream display changes according to the transmission control switch (shift lock control unit assembly) operation.

A

The Techstream display does not change according to the transmission control switch (shift lock control unit assembly) operation.

B

(e) Turn the ignition switch off.

B

GO TO STEP 7

A

3.

CHECK FOR INTERMITTENT PROBLEMS

Click here 2019 - 2025 MY RAV4 HV [02/2019 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for AWD with NICKEL METAL HYDRIDE BATTERY): CHECK FOR INTERMITTENT PROBLEMS

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 MY RAV4 HV [08/2020 - 12/2021]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 - 2025 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

NG

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

4.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

(a) Disconnect the G23 transmission control switch (shift lock control unit assembly) connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

G23-4 (IG) - Body ground

Ignition switch ON

11 to 14 V

*a

Front view of wire harness connector

(to Transmission Control Switch (Shift Lock Control Unit Assembly))

(d) Turn the ignition switch off.

(e) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

G23-4 (IG) - Body ground

Ignition switch off

Below 1 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G23-2 (E) - Body ground

Ignition switch off

Below 1 Ω

(g) Reconnect the G23 transmission control switch (shift lock control unit assembly) connector.

NG

CHECK POWER SOURCE CIRCUIT
OK

5.

INSPECT TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)

(a) Disconnect the G23 transmission control switch (shift lock control unit assembly) connector.

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G23-4 (IG) - G23-5 (S)

Shift lever in S

Shift lever held in "+" or "-"

Below 1 Ω

G23-4 (IG) - G23-5 (S)

Shift lever in any position except S

10 kΩ or higher

G23-3 (SFTU) - G23-2 (E)

Shift lever held in "+"

Below 1 Ω

G23-3 (SFTU) - G23-2 (E)

Shift lever in S

10 kΩ or higher

G23-1 (SFTD) - G23-2 (E)

Shift lever held in "-"

Below 1 Ω

G23-1 (SFTD) - G23-2 (E)

Shift lever in S

10 kΩ or higher

*a

Component without harness connected

(Transmission Control Switch (Shift Lock Control Unit Assembly))

(c) Reconnect the G23 transmission control switch (shift lock control unit assembly) connector.

NG

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

OK

6.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY))

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

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A30-25 (M) - Body ground

Ignition switch ON

Shift lever in S, "+" or "-"

11 to 14 V

Ignition switch ON

Except shift lever in S, "+" and "-"

Below 1 V

NOTICE:

If the ignition switch is turned to ON with the hybrid vehicle control ECU assembly connector disconnected, other DTCs will be stored. After performing the inspection, clear the DTCs.

*a

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

(d) Turn the ignition switch off.

(e) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A30-24 (SFTU) - Body ground

Shift lever held in "+"

Below 1 Ω

A30-24 (SFTU) - Body ground

Shift lever in S

10 kΩ or higher

A30-11 (SFTD) - Body ground

Shift lever held in "-"

Below 1 Ω

A30-11 (SFTD) - Body ground

Shift lever in S

10 kΩ or higher

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

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 MY RAV4 HV [08/2020 - 12/2021]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 - 2025 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

INSPECT TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)

(a) Disconnect the G23 transmission control switch (shift lock control unit assembly) connector.

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G23-3 (SFTU) - G23-2 (E)

Shift lever held in "+"

Below 1 Ω

G23-3 (SFTU) - G23-2 (E)

Shift lever in S

10 kΩ or higher

G23-1 (SFTD) - G23-2 (E)

Shift lever held in "-"

Below 1 Ω

G23-1 (SFTD) - G23-2 (E)

Shift lever in S

10 kΩ or higher

*a

Component without harness connected

(to Transmission Control Switch (Shift Lock Control Unit Assembly))

(c) Reconnect the G23 transmission control switch (shift lock control unit assembly) connector.

NG

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

OK

8.

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY) - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

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

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A30-24 (SFTU) - Body ground

Shift lever held in "+"

Below 1 Ω

Shift lever in S

10 kΩ or higher

A30-11 (SFTD) - Body ground

Shift lever held in "-"

Below 1 Ω

Shift lever in S

10 kΩ or higher

*a

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

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

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 MY RAV4 HV [08/2020 - 12/2021]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 - 2025 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR