Volvo engine code DTC U116F

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Volvo engine code DTC U116F

Data Link Communication: CAN Links The Engine ECU software monitors CAN messages received by the Engine ECU for detection of lost data link communication to other ECU’s. In addition, the ECU monitors the electrical behavior of the data buses. It cannot detect electrical failures, but “bus off” conditions, where it is not possible to send data. The bus off conditions are monitored and a fault code set if such a condition occurs on any of the datalinks. “Bus off” conditions are typically related to electrical problems with the CAN harness. The EECU monitors bus off conditions on the following datalinks: • Backbone 1, 250kbit medium speed CAN communication bus • Backbone 2, 500kbit High speed CAN communication bus • Engine subnet, 250kbit medium speed CAN communication bus • Powertrain CAN, 500kbit High speed CAN communication bus U116F CAN Link: Missing ACM at Engine Subnet DTC U116F Component / System ACM Monitor Strategy Description Missing Signal Fault Limit Time Missing Signal > 9 seconds Enable Conditions • Key On Active • Battery Voltage > 8 V Disable Conditions No Active DTC's: • N/A Time Required For DTC To Be Set 5 seconds MIL Illumination 2 Drive Cycles