• The control module suspends all message transmission.
• The control module uses default values for all parameters received on the serial data circuits.
• In the TCM, DTC U0073 will cause the transmission to go into default gears.
• In the ECM and TCM, DTC U0073 will cause the malfunction indicator lamp (MIL) to illuminate.
• If equipped with eAssist, DTC U0073 in the hybrid powertrain control module is a type B code and will cause the malfunction indicator lamp to illuminate and result in the engine operating in conventional engine mode and will maintain 14 V module operation.
• The control module inhibits the setting of all other communication DTCs.