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DTC P1630 Communication Error from VSC to ECM; DTC U0122 Lost Communication with Vehicle Dynamics Control Module: Description

The skid control ECU sends signals such as cruise control cancel demand signals and brake operation demand (from ECM) response signals to the ECM when the dynamic laser cruise control system is in operation.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
P1630 While the dynamic laser cruise control is either preparing for operation or operating, if communication data from the skid control ECU is logically inconsistent for a certain amount of time, the ECM records this logical error code
  • Communication circuit
  • ABS & traction actuator (Skid control ECU)
  • ECM
U0122 While dynamic laser cruise control is either preparing for operation or operating, if communication data from the skid control ECU is invalid for a certain amount of time, the ECM records this communication cut off code
  • Communication circuit
  • ABS & traction actuator (Skid control ECU)
  • ECM