| Last Modified: 12-11-2024 | 6.11:8.1.0 | Doc ID: RM100000002OT5E |
| Model Year Start: 2025 | Model: GR Corolla | Prod Date Range: [09/2024 - ] |
| Title: UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: Shift Paddle Switch Circuit; 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 - ] | ||
|
Shift Paddle Switch Circuit |
DESCRIPTION
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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![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
READ VALUE USING GTS (SPORT SHIFT SWITCH STATUS) |
(a) According to the display on the GTS, 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 |
|
- |
|
Sport Shift Down SW |
Sport shift down switch status |
ON or OFF |
|
- |
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 |
| A |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT) |
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A139-44 (SFTU) - A139-28 (ECCS) |
"+" (Up shift) shift paddle switch operated and held |
Below 2.5 Ω |
|
A139-52 (SFTD) - A139-28 (ECCS) |
"-" (Down shift) shift paddle switch operated and held |
Below 2.5 Ω |
|
A139-44 (SFTU) - A139-28 (ECCS) |
"+" (Up shift) shift paddle switch not operated |
1 MΩ or higher |
|
A139-52 (SFTD) - A139-28 (ECCS) |
"-" (Down shift) shift paddle switch not operated |
1 MΩ or higher |
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND) |
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A139-10 (E1) - Body ground |
Always |
Below 1 Ω |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND) |
|
4. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) |
(a) Disconnect the I82 spiral cable sub-assembly connector.
(b) Disconnect the A139 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A139-44 (SFTU) - I82-8 (SUP) |
Always |
Below 1 Ω |
|
A139-52 (SFTD) - I82-1 (SDN) |
Always |
Below 1 Ω |
|
A139-28 (ECCS) - I82-2 (ECC) |
Always |
Below 1 Ω |
|
A139-44 (SFTU) or I82-8 (SUP) - Body ground |
Always |
10 kΩ or higher |
|
A139-52 (SFTD) or I82-1 (SDN) - Body ground |
Always |
10 kΩ or higher |
|
A139-28 (ECCS) or I82-2 (ECC) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) |
|
|
5. |
INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Inspect the spiral cable sub-assembly.
Click here
| NG |
|
|
|
6. |
INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) |
|
(a) Remove the shift paddle switch LH (transmission shift switch assembly).
Click here
|
|
(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-3 (ECC1) |
"-" (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 not operated |
1 MΩ or higher |
| NG |
|
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).
Click here
|
|
(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 |
| NG |
|
REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) |
|
|
8. |
INSPECT NO. 1 SWITCH WIRE |
|
(a) Install the transmission shift switch assembly.
Click here
|
|
(b) Disconnect the z6 No. 1 switch wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
z6-2 (SUP) - z6-3 (ECC) |
"+" (Up shift) shift paddle switch operated and held |
Below 2.5 Ω |
|
z6-4 (SDN) - z6-3 (ECC) |
"-" (Down shift) shift paddle switch operated and held |
Below 2.5 Ω |
|
z6-2 (SUP) - z6-3 (ECC) |
"+" (Up shift) shift paddle switch not operated |
1 MΩ or higher |
|
z6-4 (SDN) - z6-3 (ECC) |
"-" (Down shift) shift paddle switch not operated |
1 MΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
|
|