UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: Shift Paddle Switch Circuit; 2020 - 2024 MY Camry [03/2020

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM100000001MFQV
Model Year Start: 2020	Model: Camry	Prod Date Range: [03/2020 - ]
Title: UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: Shift Paddle Switch Circuit; 2020 - 2024 MY Camry [03/2020 - ]

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

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PROCEDURE

1.	READ VALUE USING TECHSTREAM (SPORT SHIFT SWITCH STATUS)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine / Data List.

(e) According to the display on the Techstream, read the Data List.

Powertrain > Engine > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Sport Shift Up SW	Sport shift up switch status	ON or OFF	ON: Shift lever held in "+" or "+" shift paddle switch operated OFF: Shift lever not held in "+" and "+" shift paddle switch released	-
Sport Shift Down SW	Sport shift down switch status	ON or OFF	ON: Shift lever held in "-" or "-" shift paddle switch operated OFF: Shift lever not held in "-" and "-" shift paddle switch released	-

Powertrain > Engine > Data List

Tester Display
Sport Shift Up SW
Sport Shift Down SW

Result	Proceed to
Data List values are normal	A
Data List values are not normal	B

CHECK FOR INTERMITTENT PROBLEMS

2.	CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT)

(a) Disconnect the A24 ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A24-20 (SFTU) - A24-28 (ECCS)	"+" (Up shift) shift paddle switch operated and held	Below 2.5 Ω
A24-20 (SFTU) - A24-28 (ECCS)	"+" (Up shift) shift paddle switch not operated	1 MΩ or higher
A24-19 (SFTD) - A24-28 (ECCS)	"-" (Down shift) shift paddle switch operated and held	Below 2.5 Ω
A24-19 (SFTD) - A24-28 (ECCS)	"-" (Down shift) shift paddle switch not operated	1 MΩ or higher

GO TO STEP 4

3.	CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

(a) Disconnect the A24 ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A24-10 (E1) - Body ground	Always	Below 1 Ω

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND)

4.	CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

(a) Disconnect the K22 spiral cable sub-assembly connector.

(b) Disconnect the A24 ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A24-20 (SFTU) - K22-8 (SUP)	Always	Below 1 Ω
A24-19 (SFTD) - K22-1 (SDN)	Always	Below 1 Ω
A24-28 (ECCS) - K22-2 (ECC)	Always	Below 1 Ω
A24-20 (SFTU) or K22-8 (SUP) - Body ground	Always	10 kΩ or higher
A24-19 (SFTD) or K22-1 (SDN) - Body ground	Always	10 kΩ or higher
A24-28 (ECCS) or K22-2 (ECC) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

5.	INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Inspect the spiral cable sub-assembly.

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REPLACE SPIRAL CABLE SUB-ASSEMBLY

6.	INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

(a) Remove the shift paddle switch LH (transmission shift switch assembly).

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*a	Component without harness connected (Shift Paddle Switch LH (Transmission Shift Switch Assembly))

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A-1 (SDN) - A-2 (ECC)	"-" (Down shift) shift paddle switch operated and held	Below 2.5 Ω
A-1 (SDN) - A-2 (ECC)	"-" (Down shift) shift paddle switch not operated	1 MΩ or higher
A-1 (SDN) - A-3 (ECC1)	"-" (Down shift) shift paddle switch operated and held	Below 2.5 Ω
A-1 (SDN) - A-3 (ECC1)	"-" (Down shift) shift paddle switch not operated	1 MΩ or higher

REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

7.	INSPECT SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

(a) Remove the shift paddle switch RH (transmission shift switch assembly).

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*a	Component without harness connected (Shift Paddle Switch RH (Transmission Shift Switch Assembly))

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
B-1 (SUP) - B-2 (ECC)	"+" (Up shift) shift paddle switch operated and held	Below 2.5 Ω
B-1 (SUP) - B-2 (ECC)	"+" (Up shift) shift paddle switch not operated	1 MΩ or higher

REPLACE SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

8.	INSPECT NO. 1 SWITCH WIRE

(a) Install the transmission shift switch assembly.

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

(b) Disconnect the z4 No. 1 switch wire connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
z4-2 (SUP) - z4-3 (ECC)	"+" (Up shift) shift paddle switch operated and held	Below 2.5 Ω
z4-2 (SUP) - z4-3 (ECC)	"+" (Up shift) shift paddle switch not operated	1 MΩ or higher
z4-4 (SDN) - z4-3 (ECC)	"-" (Down shift) shift paddle switch operated and held	Below 2.5 Ω
z4-4 (SDN) - z4-3 (ECC)	"-" (Down shift) shift paddle switch not operated	1 MΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE NO. 1 SWITCH WIRE