DTC Detection Logic

NOTE: If DTC P1090 or P1093 is displayed with DTC P1091, first perform the trouble diagnosis for DTC P1091.
Refer to "DTC LOGIC ".

DTC DETECTION CONDITION CHART

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P1090	VVEL system performance (bank 1)	Event angle difference between the actual and the target is detected. Abnormal current is sent to VVEL actuator motor.	Harness or connectors (VVEL actuator motor circuit is open or shorted.) VVEL actuator motor VVEL actuator sub assembly VVEL ladder assembly VVEL control module
P1093	VVEL system performance (bank 2)