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






ON BOARD DIAGNOSIS LOGIC


DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION 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 following procedure to confirm the malfunction is eliminated.

With Generic Scan Tool
(1) Start engine.
(2) Drive vehicle under the following conditions: Selector lever in "D" (OD "ON") position, vehicle speed higher than 30 km/h (19 MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 5 seconds.
(3) Select "MODE 7" with GST.






DIAGNOSTIC PROCEDURE


COMPONENT INSPECTION
Revolution sensor












Check resistance between terminals (1), (2) and (3).