Last Modified: 09-10-2025 6.11:8.1.0 Doc ID: RM100000001A0GA
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2020]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): Shift Paddle Switch Circuit; 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]

Shift Paddle Switch Circuit

DESCRIPTION

Moving the shift lever to S enables the shift range to be selected. The shift range can be selected by operating the "+" or "-" shift paddle switch.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

PROCEDURE

1.

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

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(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 values displayed on the Techstream.

Powertrain > Hybrid Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Sports Shift UP Signal

Sport shift up switch status

ON or OFF

Shift paddle switch RH (+) operated: ON

Shift paddle switch RH (+) not operated: OFF

Sports Shift DOWN Signal

Sport shift down switch status

ON or OFF

Shift paddle switch LH (-) operated: ON

Shift paddle switch LH (-) not operated: OFF

Result

Proceed to

The Techstream display changes according to the shift paddle switch (transmission shift switch assembly) operation

A

The Techstream display does not change according to the shift paddle switch (transmission shift switch assembly) operation

B

(e) Turn the power switch off.

A

CHECK FOR INTERMITTENT PROBLEMS

B

GO TO STEP 2

2.

CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT)

(a) Disconnect the G47 hybrid vehicle control ECU connector.

(b) Disconnect the G22 transmission control switch (shift lock control unit assembly) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G47-9 (SFTU) - Body ground

Shift paddle switch RH (+) operated

3 Ω or less

G47-8 (SFTD) - Body ground

Shift paddle switch LH (-) operated

3 Ω or less

G47-9 (SFTU) - Body ground

Shift paddle switch RH (+) not operated

10 kΩ or higher

G47-8 (SFTD) - Body ground

Shift paddle switch LH (-) not operated

10 kΩ or higher

*a

Rear view of wire harness connector

(to Hybrid Vehicle Control ECU)

(d) Reconnect the G22 transmission control switch (shift lock control unit assembly) connector.

(e) Reconnect the G47 hybrid vehicle control ECU connector.

OK

REPLACE HYBRID VEHICLE CONTROL ECU

NG

GO TO STEP 3

3.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

(a) Disconnect the G17 spiral cable sub-assembly connector.

*a

Front view of wire harness connector

(to Spiral Cable Sub-assembly)

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

Standard Resistance (Open):

Tester Connection

Condition

Specified Condition

G17-2 (ECC) - Body ground

Always

Below 1 Ω

(c) Reconnect the G17 spiral cable sub-assembly connector.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - HYBRID VEHICLE CONTROL ECU)

(a) Disconnect the G47 hybrid vehicle control ECU connector.

(b) Disconnect the G17 spiral cable sub-assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G47-9 (SFTU) - G17-8 (SUP)

Always

Below 1 Ω

G47-8 (SFTD) - G17-1 (SDN)

Always

Below 1 Ω

G47-9 (SFTU) or G17-8 (SUP) - Body ground

Always

10 kΩ or higher

G47-8 (SFTD) or G17-1 (SDN)- Body ground

Always

10 kΩ or higher

*a

Rear view of wire harness connector

(to Hybrid Vehicle Control ECU)

*b

Front view of wire harness connector

(to Spiral Cable Sub-assembly)

(d) Reconnect the G17 spiral cable sub-assembly connector.

(e) Reconnect the G47 hybrid vehicle control ECU connector.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Inspect the spiral cable sub-assembly.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: INSPECTION

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

OK

6.

INSPECT SHIFT PADDLE SWITCH LH (NO. 1 TRANSMISSION SHIFT SWITCH ASSEMBLY)

(a) Inspect the shift paddle switch LH (NO. 1 transmission shift switch assembly).

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; P710 (HYBRID TRANSMISSION / TRANSAXLE): SHIFT PADDLE SWITCH: INSPECTION

NG

REPLACE SHIFT PADDLE SWITCH LH (NO. 1 TRANSMISSION SHIFT SWITCH ASSEMBLY)

OK

7.

INSPECT SHIFT PADDLE SWITCH RH (NO. 2 TRANSMISSION SHIFT SWITCH ASSEMBLY)

(a) Inspect the shift paddle switch RH (NO. 2 transmission shift switch assembly).

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; P710 (HYBRID TRANSMISSION / TRANSAXLE): SHIFT PADDLE SWITCH: INSPECTION

NG

REPLACE SHIFT PADDLE SWITCH RH (NO. 2 TRANSMISSION SHIFT SWITCH ASSEMBLY)

OK

8.

INSPECT NO. 1 SWITCH WIRE

(a) Disconnect the z2 No. 1 switch wire connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

z2-2 (SUP) - z2-3 (ECC)

"+" (Up shift) shift paddle switch operated and held

Below 1 Ω

"+" (Up shift) shift paddle switch not operated

10 kΩ or higher

z2-4 (SDN) - z2-3 (ECC)

"-" (Down shift) shift paddle switch operated and held

Below 1 Ω

"-" (Down shift) shift paddle switch not operated

10 kΩ or higher

*a

Front view of wire harness connector

(to Spiral Cable Sub-assembly)

(c) Reconnect the z2 No. 1 switch wire connector.

OK

CHECK FOR INTERMITTENT PROBLEMS

NG

REPLACE NO. 1 SWITCH WIRE