HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): Shift Paddle Switch Circuit; 2021 - 2022 MY Avalon HV [08/2020

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001RISY
Model Year Start: 2021	Model: Avalon HV	Prod Date Range: [08/2020 - ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): Shift Paddle Switch Circuit; 2021 - 2022 MY Avalon HV [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

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.

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.

CHECK FOR INTERMITTENT PROBLEMS

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.

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.

REPLACE HYBRID VEHICLE CONTROL ECU

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

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.

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

Rear view of wire harness connector

(to Hybrid Vehicle Control ECU)

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.

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Inspect the spiral cable sub-assembly.

Click here

REPLACE SPIRAL CABLE SUB-ASSEMBLY

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

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

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

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

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
z2-2 (SUP) - z2-3 (ECC)	"+" (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
z2-4 (SDN) - z2-3 (ECC)	"-" (Down shift) shift paddle switch not operated	10 kΩ or higher

*a	Front view of wire harness connector (to Spiral Cable Sub-assembly)

CHECK FOR INTERMITTENT PROBLEMS

REPLACE NO. 1 SWITCH WIRE