DTC P0720: Output Speed Sensor Circuit; DTC P0722: Output Speed Sensor Circuit No Signal [06/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Data List.
5. 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 2650 rpm: Vehicle being driven at approximately 60 km/h (37 mph)	Data is displayed in increments of 50 rpm.
   NOUT Sensor Voltage	Transmission revolution sensor (NOUT) 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 value is not normal	A
   Data List value is normal	B

Result:  2

B 

See step  5

Result:  1

A 

See step  2

1. Remove the transmission revolution sensor (NOUT).

   Refer to REMOVAL [06/2015 - ]

2. Connect the battery to the transmission revolution sensor (NOUT) 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	-	-

3. Wave a magnetic object left and right 5 mm (0.197 in.) or less from the tip of the transmission revolution sensor (NOUT) to output a high/low signal while measuring the current.
   NOTE:

   Make sure to wave the magnetic object during the inspection. The current will not change unless the magnetic object is moved as shown in the illustration.

4. 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

NG 

REPLACE TRANSMISSION REVOLUTION SENSOR (NOUT). Refer to  COMPONENTS [06/2015 - ] 

Result:  1

OK 

See step  3

1. Disconnect the B34 transmission revolution sensor (NOUT) connector.
2. Disconnect the B38 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B34-1 (NOTO) - B38-129 (NOTO)	Always	Below 1 Ω
   B34-2 (NOTB) - B38-130 (NOTB)	Always	Below 1 Ω
   B34-1 (NOTO) or B38-129 (NOTO) - Body ground and other terminals	Always	10 kΩ or higher
   B34-2 (NOTB) or B38-130 (NOTB) - Body ground and other terminals	Always	10 kΩ or higher

4. Connect the B38 ECM connector.
5. Connect the B34 transmission revolution sensor (NOUT) connector.

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

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

Result:  1

OK 

See step  4

1. Replace the ECM.

   Refer to COMPONENTS [06/2015 - ]

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

PERFORM INITIALIZATION. Refer to  INITIALIZATION [06/2015 - ] 

1. Replace the ECM.

   Refer to COMPONENTS [06/2015 - ]

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

PERFORM INITIALIZATION. Refer to  INITIALIZATION [06/2015 - ]