TCM Self-Diagnosis Does Not Activate

TROUBLE DIAGNOSIS FOR SYMPTOMS


TCM Self-Diagnosis Does Not Activate


SYMPTOM:
OD OFF indicator lamp does not come on in TCM self-diagnostic procedure even if the lamp circuit is good.

DESCRIPTION





- Transmission range switch (1)
Transmission range switch assembly includes a transaxle position switch. The transaxle position switch detects the selector lever position and sends a signal to the TCM.





- Overdrive control switch
Overdrive control switch detects the switch position (ON or OFF) and sends the signal via CAN communication to the TCM.





- Closed throttle position signal and wide open throttle position signal
ECM judges throttle opening based on a signal from accelerator pedal position sensor, and sends the signal via CAN communication to the TCM.

DIAGNOSTIC PROCEDURE

NOTE:
The diagnostic procedure includes inspection for the transmission range stitch, overdrive control switch, closed throttle position signal and wide open throttle position signal circuit. CONSULT-III Reference Value In Data Monitor Mode Terminal And Reference Value Diagnosis Procedure .