Last Modified: 07-31-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GYT2 |
Model Year Start: 2020 |
Model: Corolla Hatchback |
Prod Date Range: [01/2019 - 11/2022] |
Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: Pattern Select Switch Sport Mode Circuit; 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022] |
Pattern Select Switch Sport Mode Circuit
|
DESCRIPTION
The ECM 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 ECM switches the shift solenoid valves on and off, and controls the gear ratio.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform initialization when parts related to the continuously variable transaxle system are replaced.
Click here
PROCEDURE
1.
|
READ VALUE USING TECHSTREAM (PATTERN SWITCH (PWR/M))
|
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Data List.
(e) According to the display on the Techstream, read the Data List.
Powertrain > Engine and ECT > Data List
Tester Display
|
Measurement Item
|
Range
|
Normal Condition
|
Diagnostic Note
|
Pattern Switch (PWR/M)
|
SPORT mode switch status
|
OFF or ON
|
-
OFF: SPORT mode off
-
ON: SPORT mode on
|
-
|
Result
|
Proceed to
|
Data List value is normal
|
A
|
Data List value is not normal
|
B
|
A
|
|
|
(a) Replace the ECM.
Click here
3.
|
INSPECT COMBINATION SWITCH ASSEMBLY (SPORT SWITCH)
|
(a) Remove the combination switch assembly.
Click here
|
|
*a
|
Component without harness connected
(Combination Switch Assembly (SPORT Switch))
|
|
|
(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
OK
|
|
|
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)
|
OK
|
|
|
5.
|
CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)
|
(a) Disconnect the A46 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A46-57 (PWMS) - Body ground
|
SPORT switch (combination switch assembly) being pushed
|
Below 50 Ω
|
A46-57 (PWMS) - Body ground
|
SPORT switch (combination switch assembly) not being pushed
|
10 kΩ or higher
|
(c) Connect the A46 ECM connector.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - ECM)
|
OK
|
|
|
(a) Replace the ECM.
Click here
|