| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001D0YP |
| Model Year Start: 2019 | Model: Corolla Hatchback | Prod Date Range: [06/2018 - 11/2022] |
| Title: K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: Pattern Select Switch Sport Mode Circuit; 2019 - 2023 MY Corolla Corolla Hatchback [06/2018 - 11/2022] | ||
|
Pattern Select Switch Sport Mode Circuit |
DESCRIPTION
The TCM memory contains programs for normal and sport shift patterns.
By following the programs corresponding to signals from the SPORT switch (combination switch assembly), park/neutral position switch assembly and various other sensors, the TCM turns the shift solenoid valves on and off, and controls the transaxle gear ratio.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.
Click here
![2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (POWER MODE SW) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream 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 |
|---|---|---|---|---|
|
Power Mode SW |
SPORT switch (combination switch assembly) status |
OFF or ON |
|
- |
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Power Mode SW |
|
Result |
Proceed to |
|---|---|
|
Data List value is normal |
A |
|
Data List value is not normal |
B |
| B |
|
|
|
2. |
REPLACE ECM |
(a) Replace the ECM.
Click here
| NEXT |
|
PERFORM INITIALIZATION
|
|
3. |
INSPECT COMBINATION SWITCH ASSEMBLY (SPORT SWITCH) |
|
(a) Remove the combination switch assembly. Click here
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
6 (MSW1) - 5 (E) |
SPORT switch (combination switch assembly) being pushed |
Below 50 Ω |
|
6 (MSW1) - 5 (E) |
SPORT switch (combination switch assembly) not being pushed |
10 kΩ or higher |
(c) Install the combination switch assembly.
Click here
| NG |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND) |
(a) Disconnect the I61 combination switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I61-5 (E) - Body ground |
Always |
Below 1 Ω |
(c) Connect the I61 combination switch assembly connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND) |
|
|
5. |
CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM) |
(a) Disconnect the A47 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A47-31 (PWMS) - Body ground |
SPORT switch (combination switch assembly) being pushed |
Below 50 Ω |
|
A47-31 (PWMS) - Body ground |
SPORT switch (combination switch assembly) not being pushed |
10 kΩ or higher |
(c) Connect the A47 ECM connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM) |
|
|
6. |
REPLACE ECM |
(a) Replace the ECM.
Click here
| NEXT |
|
PERFORM INITIALIZATION
|
|
|