DTC P0791: Intermediate Shaft Speed Sensor "A" Circuit; DTC P0793: Intermediate Shaft Speed Sensor "A" [12/2013 - 11/2015]: Procedure

WARNING: This page is about a different variant/trim than selected.

INSPECT TRANSMISSION REVOLUTION SENSOR (SPEED SENSOR INSTALLATION)

Remove the valve body assembly.

Make sure that the connector is properly connected, and check the speed sensor installation.

Refer to INSTALLATION [12/2013 - 11/2016]

The installation bolts are tightened properly and there is no clearance between the sensor and valve body assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

Proceed to
OK
NG

Result: 2

REPAIR OR REPLACE TRANSMISSION REVOLUTION SENSOR. Refer to COMPONENTS [12/2013 - ]

Result: 1

See step 2

INSPECT TRANSMISSION WIRE

Disconnect the speed sensor connector from the transmission wire.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Component without harness connected (Transmission Wire)
*b	Wiring harness connector side
*c	Sensor side

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

Result

Proceed to
OK
NG

Result: 2

REPLACE TRANSMISSION WIRE. Refer to COMPONENTS [12/2013 - ]

Result: 1

See step 3

CHECK HARNESS AND CONNECTOR (ECM - WIRING HARNESS CONNECTOR)

Disconnect the ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
C1-118 (NCB) - C2-4 (NCB)	Always	Below 1 Ω
C1-117 (NCO) - C2-3 (NCO)	Always	Below 1 Ω
C1-118 (NCB) or C2-4 (NCB)- Body ground and other terminals	Always	10 kΩ or higher
C1-117 (NCO) or C2-3 (NCO) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result: 2

REPAIR OR REPLACE HARNESS OR CONNECTOR

Result: 1

See step 4

INSPECT WIRING HARNESS CONNECTOR

Remove the wiring harness connector.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Component without harness connected (Wiring Harness Connector)	*b	ECM side
*c	Transmission wire side	-	-

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

Standard Resistance

Tester Connection	Condition	Specified Condition
C2-3 (NCO) - A-3 (NCO)	Always	Below 1 Ω
C2-4 (NCB) - A-4 (NCB)	Always	Below 1 Ω
C2-3 (NCO) - All other terminals	Always	10 kΩ or higher
C2-4 (NCB) - All other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result: 2

REPLACE WIRING HARNESS CONNECTOR. Refer to COMPONENTS [12/2013 - 11/2016]

Result: 1

See step 5

REPLACE TRANSMISSION REVOLUTION SENSOR
Refer to REMOVAL [12/2013 - 11/2016]

Result

Proceed to

NEXT

Result: 1

NEXT

See step 6

Proceed to
NEXT

CHECK IF DTC OUTPUT RECURS (SEE IF DTC P0791 AND/OR P0793 IS OUTPUT AGAIN)

Connect the Techstream to the DLC3.
Start the engine and turn the Techstream on.
Clear the DTCs.
Refer to DTC CHECK / CLEAR [12/2013 - ]

HINT:

Write down the currently output DTCs before clearing them.

Powertrain > Engine > Clear DTCs
Perform the monitor drive pattern.
Refer to MONITOR DRIVE PATTERN [12/2013 - ]
Enter the following menus: / Engine and ECT / Trouble Codes.
Powertrain > Engine > Trouble Codes

Read the DTCs using the Techstream.

Result

Result	Proceed to
Only DTC P0791 or P0793 is output	A
DTCs are not output	B

Result: 1

REPLACE ECM. Refer to COMPONENTS [12/2013 - 11/2016]

Result: 2

END