Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001H3KV
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): Indicator Circuit; 2019 - 2025 MY RAV4 HV [02/2019 -        ]

Indicator Circuit

DESCRIPTION

In accordance with the shift lever position, each shift position indicator light will turn on.

WIRING DIAGRAM

PROCEDURE

1.

CHECK SHIFT POSITION INDICATOR

(a) Turn the ignition switch to ON (ACC).

(b) Check that each shift position indicator light turns on correctly.

Result

Proceed to

All shift position indicator lights turn on simultaneously

A

Shift position indicator lights other than corresponding one turns on

B

Corresponding shift position indicator light does not turn on

C

No shift position indicator lights turn on

D

(c) Turn the ignition switch off.

B

GO TO STEP 2

C

GO TO STEP 4

D

GO TO STEP 4

A

2.

CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT TO GND)

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A30-19 (INDP) - Body ground and other terminals

Always

10 kΩ or higher

A30-7 (INDR) - Body ground and other terminals

Always

10 kΩ or higher

A30-21 (INDN) - Body ground and other terminals

Always

10 kΩ or higher

A30-8 (INDD) - Body ground and other terminals

Always

10 kΩ or higher

A30-20 (INDM) - Body ground and other terminals

Always

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

3.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - SHIFT POSITION INDICATOR)

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

(b) Disconnect the G74 shift position indicator connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A30-19 (INDP) or G74-4 (P) - Body ground and other terminals

Always

10 kΩ or higher

A30-7 (INDR) or G74-3 (R) - Body ground and other terminals

Always

10 kΩ or higher

A30-21 (INDN) or G74-2 (N) - Body ground and other terminals

Always

10 kΩ or higher

A30-8 (INDD) or G74-1 (D) - Body ground and other terminals

Always

10 kΩ or higher

A30-20 (INDM) or G74-8 (S) - Body ground and other terminals

Always

10 kΩ or higher

*a

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

*b

Front view of wire harness connector

(to Shift Position Indicator)

(d) Reconnect the G74 shift position indicator connector.

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

OK

REPLACE SHIFT POSITION INDICATOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

(a) Disconnect the G74 shift position indicator connector.

(b) Turn the ignition switch to ON (ACC).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G74-10 (PWR) - Body ground

Ignition switch on (ACC)

11 to 14 V

*a

Front view of wire harness connector

(to Shift Position Indicator)

(d) Turn the ignition switch off.

(e) Reconnect the G74 shift position indicator connector.

NG

REPAIR OR REPLACE POWER SOURCE CIRCUIT
OK

5.

CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL ACCI)

(a) Turn the ignition switch to ON (ACC).

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

*a

Component with harness connected

(Hybrid Vehicle Control ECU Assembly)

-

-

Standard Voltage:

Tester Connection

Condition

Specified Condition

A31-29 (ACCI) - Body ground

Ignition switch ON (ACC)

11 to 14 V

(c) Turn the ignition switch off.

NG

REPAIR OR REPLACE POWER SOURCE CIRCUIT
OK

6.

CHECK HARNESS AND CONNECTOR (CHECK FOR OPEN)

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

(b) Turn the ignition switch to ON (ACC).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

A30-19 (INDP) - Body ground and other terminals

Ignition switch ON (ACC)

11 to 14 V

A30-7 (INDR) - Body ground and other terminals

Ignition switch ON (ACC)

11 to 14 V

A30-21 (INDN) - Body ground and other terminals

Ignition switch ON (ACC)

11 to 14 V

A30-8 (INDD) - Body ground and other terminals

Ignition switch ON (ACC)

11 to 14 V

A30-20 (INDM) - Body ground and other terminals

Ignition switch ON (ACC)

11 to 14 V

*a

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

(d) Turn the ignition switch off.

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

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

7.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - SHIFT POSITION INDICATOR)

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

(b) Disconnect the G74 shift position indicator connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A30-19 (INDP) - G74-4 (P)

Always

Below 1 Ω

A30-7 (INDR) - G74-3 (R)

Always

Below 1 Ω

A30-21 (INDN) - G74-2 (N)

Always

Below 1 Ω

A30-8 (INDD) - G74-1 (D)

Always

Below 1 Ω

A30-20 (INDM) - G74-8 (S)

Always

Below 1 Ω

*a

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

*b

Front view of wire harness connector

(to Shift Position Indicator)

(d) Reconnect the G74 shift position indicator connector.

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

OK

REPLACE SHIFT POSITION INDICATOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR