DTC Detection Logic

DTC DETECTION LOGIC

DTC	Item (CONSULT-III screen terms)	A/T CHECK indicator lamp judgment flicker	Diagnostic item is detected when...	Possible cause
P1721	VEH SPD SE/CIR-MTR	-	Signal (CAN communication) from vehicle speed sensor MTR not input due to cut line or the like. Unexpected signal input during running.	Harness or connectors (Sensor circuit is open or shorted.)