Pattern Select Switch iMT Mode Circuit [06/2018 - 11/2022]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List.
5. According to the display on the Techstream, read the Data List.

   Powertrain > Engine > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   iMT SW	iMT switch (combination switch assembly) status	ON or OFF	ON: iMT switch (combination switch assembly) being pushed OFF: iMT switch (combination switch assembly) not being pushed	-

   Powertrain > Engine > Data List 

   Tester Display
   iMT SW

   Result

   Result	Proceed to
   Data List value is normal	A
   Data List value is not normal	B

Result: 

A 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [06/2018 - 03/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [03/2019 - 09/2022]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2022 - 11/2022] 

Result: 

B 

See step  2

1. Remove the combination switch assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Combination Switch Assembly (iMT Switch))

   Refer to REMOVAL [06/2018 - 11/2022]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   6 (MSW1) - 5 (E)	iMT switch (combination switch assembly) being pushed	Below 50 Ω
   6 (MSW1) - 5 (E)	iMT switch (combination switch assembly) not being pushed	10 kΩ or higher

3. Install the combination switch assembly.

   Refer to INSTALLATION [06/2018 - 11/2022]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE COMBINATION SWITCH ASSEMBLY (iMT SWITCH). Refer to  COMPONENTS [06/2018 - 11/2022] 

Result: 

OK 

See step  3

1. Disconnect the I61 combination switch assembly connector.
2. 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

3. Connect the I61 combination switch assembly connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND) 

Result: 

OK 

See step  4

1. Disconnect the A47 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A47-38 (MTMS) - Body ground	iMT switch (combination switch assembly) being pushed	Below 50 Ω
   A47-38 (MTMS) - Body ground	iMT switch (combination switch assembly) not being pushed	10 kΩ or higher

3. Connect the A47 ECM connector.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [06/2018 - 03/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [03/2019 - 09/2022]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2022 - 11/2022] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)