DTC P0791: Intermediate Shaft Speed Sensor "A" Circuit; DTC P0793: Intermediate Shaft Speed Sensor "A" [09/2014 - ]: Procedure

1. Remove the valve body assembly.
2. Make sure that the connector is properly connected, and check the speed sensor installation. Refer to INSTALLATION [09/2014 - ] .

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   OK

   The installation bolts are tightened properly and there is no clearance between the sensor and transaxle case.

NG → See step   8 

OK: Go to next step 

1. Disconnect the speed sensor connector from the transmission wire.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3 (NCO) sensor side - A-3 (NCO) wiring harness connector side	Always	Below 1 Ω
   4 (NCB) sensor side - A-4 (NCB) wiring harness connector side	Always	Below 1 Ω
   3 (NCO) sensor side - Body ground and other terminals	Always	10 kΩ or higher
   4 (NCB) sensor side - Body ground and other terminals	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Transmission Wire)
   *b	Wiring Harness Connector Side
   *c	Sensor Side

NG → See step   9 

OK: Go to next step 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E26-118 (NCB) - E8-4 (NCB)	Always	Below 1 Ω
   E26-117 (NCO) - E8-3 (NCO)	Always	Below 1 Ω
   E26-118 (NCB) or E8-4 (NCB)- Body ground and other terminals	Always	10 kΩ or higher
   E26-117 (NCO) or E8-3 (NCO) - Body ground and other terminals	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the wiring harness connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Transmission Wire)
   *b	ECM Side
   *c	Transmission Wire Side

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E8-3 (NCO) - A-3 (NCO)	Always	Below 1 Ω
   E8-4 (NCB) - A-4 (NCB)	Always	Below 1 Ω
   E8-3 (NCO) - All other terminals	Always	10 kΩ or higher
   E8-4 (NCB) - All other terminals	Always	10 kΩ or higher

   Result

   Result	Proceed to
   OK	A
   NG (When not using the engine support bridge)	B
   NG (When using the engine support bridge)	C

B → See step   10 

C → See step   11 

A: Go to next step 

Refer to REMOVAL [09/2014 - ]

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Clear the DTCs. Refer to DTC CHECK / CLEAR [09/2014 - ] .

   HINT: 

   Write down the currently output DTCs before clearing them.

4. Perform the monitor drive pattern. Refer to MONITOR DRIVE PATTERN [09/2014 - ] .
5. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
6. Read the DTCs using the Techstream.

   Result

   Display (DTC Output)	Proceed to
   Only "P0791 or P0793" is output	A
   No output	B

B → END 

A → See step   7