DTC P0722: Output Speed Sensor Circuit No Signal [04/2013 - 08/2015]: Procedure
WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT TRANSMISSION REVOLUTION SENSOR (SP2) INSTALLATION
- Check the transmission revolution sensor (SP2) installation.
OK
The installation bolt is tightened properly and there is no clearance between the sensor and transmission case.
*a OK *b NG Result
Proceed to OK NG
Result:
NG
SECURELY INSTALL TRANSMISSION REVOLUTION SENSOR (SP2) OR REPLACE TRANSMISSION REVOLUTION SENSOR (SP2). Refer to INSTALLATION [04/2013 - 08/2015]
Result:
OK
See step 2
- Check the transmission revolution sensor (SP2) installation.
- INSPECT TRANSMISSION REVOLUTION SENSOR (SP2)
- Disconnect the F55 transmission revolution sensor (SP2) connector from the transmission.
*a Component without harness connected
(Transmission Revolution Sensor (SP2)) - Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 560 to 680 Ω Result
Proceed to OK NG
Result:
NG
REPLACE TRANSMISSION REVOLUTION SENSOR (SP2). Refer to COMPONENTS [04/2013 - 08/2015]
Result:
OK
See step 3
- Disconnect the F55 transmission revolution sensor (SP2) connector from the transmission.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (SP2) - ECM)
- Connect the transmission revolution sensor (SP2) connector.
*a Rear view of wire harness connector
(to ECM) - Disconnect the A77 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A77-33 (SP2+) - A77-32 (SP2-) 20°C (68°F) 560 to 680 Ω - Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for short)
Tester Connection Condition Specified Condition A77-33 (SP2+) - Body ground Always 10 kΩ or higher A77-32 (SP2-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to COMPONENTS [04/2013 - 08/2015]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Connect the transmission revolution sensor (SP2) connector.