P0725

Description
The engine speed signal is sent from the ECM to the TCM.





TCM TERMINALS AND REFERENCE VALUE

ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code ENGINE SPEED SIG with CONSULT-II or P0725 without CONSULT-II is detected when TCM does not receive the proper voltage signal from ECM.

POSSIBLE CAUSE
Check harness or connectors. (The sensor circuit is open or shorted.)

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION: Always drive vehicle at a safe speed.

NOTE: If "DTC 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 CONSULT-II








1. Turn ignition switch ON and select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2 V
Selector lever: D position (O/D ON)

WITH GST
Follow the procedure "with CONSULT-II".





WIRING DIAGRAM - AT - ENGSS

Diagnostic Procedure





1: CHECK DTC WITH ECM





2: CHECK INPUT SIGNAL (WITH CONSULT-II)





3: DETECT MALFUNCTIONING ITEM





4: CHECK INPUT SIGNAL (WITHOUT CONSULT-II)





5: DETECT MALFUNCTIONING ITEM





6: CHECK DTC





7: CHECK TCM INSPECTION