DTC U0401-68: Signal Error From Pcm [Electronic AWD Control System]: Notes

DTC U0401:68 (ELECTRONIC AWD CONTROL SYSTEM) DETECTION CONDITION AND POSSIBLE CAUSE

DTC U0401:68	Signal error from PCM
Detection condition	Correct data cannot be received from PCM
FAIL-SAFE FUNCTION	Refer to "Fail-safe function table". (See DTC TABLE [ELECTRONIC AWD CONTROL SYSTEM] .)
Possible cause	PCM malfunction AWD control module malfunction
SYSTEM WIRING DIAGRAM	-