DTC U0402:00 Abnormal Message From Transmission/Transaxle: Notes

DTC U0402:00 (DSC HU/CM) DETECTION CONDITION AND POSSIBLE CAUSE

DTC	U0402:00	Abnormal message from transmission/transaxle
DETECTION CONDITION	The DSC HU/CM received error signals from the transmission/transaxle for 1s or more with the ignition switched ON (engine off or on).
FAIL-SAFE FUNCTION	Refer to "DTC Table" and "Fail-safe Function Malfunction Contents". (See DTC TABLE .)
POSSIBLE CAUSE	The transmission/transaxle could not send a normal signal temporarily. (DTCs are stored in the TCM.) Transmission/transaxle malfunction TCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable