DTC P0722, P077C, P077D; Output Speed Sensor Circuit No Signal [08/2016 - 08/2017]: Procedure

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

READ VALUE USING TECHSTREAM (SPD (NOUT) AND NOUT SENSOR VOLTAGE)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.

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
SPD (NOUT)	Secondary pulley speed (NOUT)	min.: 0 rpm max.: 12750 rpm	0 rpm: Vehicle stopped Approximately 2500 rpm: Vehicle cruising at approximately 60 km/h (37 mph)	Data is displayed in increments of 50 rpm.
NOUT Sensor Voltage	Secondary pulley speed (NOUT) sensor output voltage	min.: 0.000 V max.: 4.999 V	0.1 to 1.9 V: Engine idling (Vehicle stopped with shift lever in P or N)	-

Powertrain > Engine and ECT > Data List

Tester Display
SPD (NOUT)
NOUT Sensor Voltage

Result

Result	Proceed to
Data List values are not normal	A
Data List values are normal	B

Result: 2

See step 5

Result: 1

See step 2

INSPECT TRANSMISSION REVOLUTION SENSOR (NOUT)

Remove the transmission revolution sensor (NOUT).
Refer to REMOVAL [08/2013 - ]

Connect the battery to the sensor as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Battery	*2	Ammeter
*a	Component without harness connected (Transmission Revolution Sensor (NOUT))	*b	Magnet
*c	5 mm or less	-	-

Wave a magnetic object left and right in front of the transmission revolution sensor (NOUT) tip (5 mm (0.197 in.) or less) to change the high/low signals while measuring the current.
NOTE:
Make sure to wave the magnetic object during the inspection. The current will not change without waving the magnetic object as indicated by the arrow in the illustration.

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

Standard Current

Tester Connection	Condition	Specified Condition
1 (NOTO) - 2 (NOTB)	Low signal	4 to 8 mA
1 (NOTO) - 2 (NOTB)	High signal	12 to 16 mA

Result

Proceed to
OK
NG

Result: 2

REPLACE TRANSMISSION REVOLUTION SENSOR (NOUT). Refer to COMPONENTS [08/2013 - ]

Result: 1

See step 3

CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NOUT) - ECM)

Disconnect the B31 transmission revolution sensor (NOUT) connector.
Disconnect the B33 ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
B31-1 (NOTO) - B33-129 (NOTO)	Always	Below 1 Ω
B31-2 (NOTB) - B33-130 (NOTB)	Always	Below 1 Ω
B31-1 (NOTO) or B33-129 (NOTO) - Body ground and other terminals	Always	10 kΩ or higher
B31-2 (NOTB) or B33-130 (NOTB) - Body ground and other terminals	Always	10 kΩ or higher

Connect the B33 ECM connector.

Connect the B31 transmission revolution sensor (NOUT) connector.

Result

Proceed to
OK
NG

Result: 2

REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NOUT) - ECM)

Result: 1

See step 4

REPLACE ECM

Replace the ECM.

for 2ZR-FAE: Refer to COMPONENTS [08/2016 - ]
for 2ZR-FE: Refer to COMPONENTS [08/2016 - ]

Result

Proceed to
NEXT

Result: 1

PERFORM INITIALIZATION. Refer to INITIALIZATION [08/2016 - ]

REPLACE ECM

Replace the ECM.

for 2ZR-FAE: Refer to COMPONENTS [08/2016 - ]
for 2ZR-FE: Refer to COMPONENTS [08/2016 - ]

Result

Proceed to
NEXT

Result: 1

PERFORM INITIALIZATION. Refer to INITIALIZATION [08/2016 - ]