DTC U0401-68: Signal Error From Pcm: 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	Not applicable