DTC U0401-68: Signal Error From Pcm: Notes

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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 ". (Refer to DTC TABLE [AWD CONTROL MODULE] .)
POSSIBLE CAUSE	PCM malfunction AWD control module malfunction
SYSTEM WIRING DIAGRAM	-