P0720

Description





The revolution sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the TCM which converts it into vehicle speed.

TCM TERMINALS AND REFERENCE VALUE





Remarks: Specification data are reference values.





ON BOARD DIAGNOSIS LOGIC

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:
- Always drive vehicle at a safe speed.
- Be careful not to rev engine into the red zone on the tachometer.

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.





After the repair, perform the procedure to confirm the malfunction is eliminated.

With CONSULT-II





1) Turn ignition switch "ON" and select "DATA MONITOR" mode for "A/T" with CONSULT-II.
2) Drive vehicle and check for an increase of "VHCL/S SE-MTR" value increase. If the check result is NG, go to "DIAGNOSTIC PROCEDURE", . Component Tests and General Diagnostics If the check result is OK, go to step.
3) Select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.





4) Start engine and maintain the conditions for at least 5 consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2 V
Selector lever: D position (OD "ON")
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.
If the check result is NG, go to "DIAGNOSTIC PROCEDURE". If the check result is OK, go to next step.





5) Maintain the conditions for at least 5 consecutive seconds.
CMPS-RPM (REF): 3,500 rpm or more
THRTL POS SEN:More than 1.2 V
Selector lever: D position (OD "ON")
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.

With GST
Follow the procedure "With CONSULT-II".





Wiring Diagram - AT - VSSA/T

Diagnostic Procedure





Part 1 of 3





Part 2 of 3





Part 3 of 3





Component Inspection
REVOLUTION SENSOR





- For removal, refer to Transmission Speed Sensor; Service and Repair.





- Check continuity between terminals 1, 2 and 3.