Shift Paddle Switch Circuit [09/2014 - 11/2017]: Procedure

1. Disconnect the A78 ECM connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to ECM)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A78-29 (SFTU) - Body ground	Pull continuously "+" (Up shift)	Below 2.5 Ω
   	Release "+" (Up shift)	1 MΩ or higher
   A78-28 (SFTD) - Body ground	Pull continuously "-" (Down shift)	Below 2.5 Ω
   	Release "-" (Down shift)	1 MΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2014 - 03/2019] 

Result: 

NG 

See step  2

1. Disconnect the O25 spiral cable with sensor sub-assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O25-2 (ECC) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND) 

Result: 

OK 

See step  3

1. Inspect the spiral cable with sensor sub-assembly.

   Refer to INSPECTION [09/2014 - 11/2017]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY. Refer to  COMPONENTS [09/2014 - 11/2017] 

Result: 

OK 

See step  4

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

   Refer to REMOVAL [09/2014 - 11/2017]

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C-1 (SDN) - C-2 (ECC)	Pull continuously "-" (Down shift)	Below 2.5 Ω
   	Release "-" (Down shift)	1 MΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH LH). Refer to  COMPONENTS [09/2014 - 11/2017] 

Result: 

OK 

See step  5

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Refer to REMOVAL [09/2014 - 11/2017]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B-3 (SUP) - B-2 (ECC)	Pull continuously "+" (Up shift)	Below 2.5 Ω
   	Release "+" (Up shift)	1 MΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH RH). Refer to  COMPONENTS [09/2014 - 11/2017] 

Result: 

OK 

See step  6

1. Install the transmission shift switch assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (No. 1 Switch Wire)

   Refer to INSTALLATION [09/2014 - 11/2017]

2. Disconnect the No. 1 switch wire connector from the steering pad switch assembly.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z6-1 (SUP) - z6-3 (ECC)	Pull continuously "+" (Up shift)	Below 2.5 Ω
   	Release "+" (Up shift)	1 MΩ or higher
   z6-2 (SDN) - z6-3 (ECC)	Pull continuously "-" (Down shift)	Below 2.5 Ω
   	Release "-" (Down shift)	1 MΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 1 SWITCH WIRE. Refer to  COMPONENTS [09/2014 - 11/2017] 

Result: 

OK 

See step  7

1. Connect the No. 1 switch wire connector to the steering pad switch assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (Steering Pad Switch Assembly)

2. Disconnect the steering pad switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z4-6 (SUP) - z4-7 (ECC)	Pull continuously "+" (Up shift)	Below 2.5 Ω
   	Release "+" (Up shift)	1 MΩ or higher
   z4-12 (SDN) - z4-7 (ECC)	Pull continuously "-" (Down shift)	Below 2.5 Ω
   	Release "-" (Down shift)	1 MΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  COMPONENTS [09/2014 - 11/2017] 

Result: 

OK 

See step  8

1. Disconnect the O25 spiral cable with sensor sub-assembly connector.
2. Disconnect the A78 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A78-29 (SFTU) - O25-14 (SUP)	Always	Below 1 Ω
   A78-28 (SFTD) - O25-7 (SDN)	Always	Below 1 Ω
   A78-29 (SFTU) or O25-14 (SUP) - Body ground	Always	10 kΩ or higher
   A78-28 (SFTD) or O25-7 (SDN) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2014 - 03/2019] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND)