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. TR Sw, OD Sw And Closed Throttle, Wide Open Throttle Position Signal Circuit TR Sw, OD Sw And Closed Throttle, Wide Open Throttle Position Signal Circuit TR Sw, OD Sw And Closed Throttle, Wide Open Throttle Position Signal Circuit .