DTC U0402-86: Check Sum Error Received From TCM [Vehicle Control Module]: Outline

DTC U0402:86 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Check sum error received from TCM
Detection condition	The vehicle control module (VCM) detects that the vehicle control module (VCM) received a check sum error from the TCM for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	TCM malfunction Vehicle control module (VCM) malfunction (built into body control module (BCM)) Body control module (BCM) malfunction Gateway function malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable