DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U1107: Lost Communication with Power Management Module [03/2017 - 05/2023]: Description
The sub-battery module assembly sends and receives signals from the ECM, skid control ECU, rack & pinion power steering gear assembly, main body ECU (multiplex network body ECU), air conditioning amplifier assembly and certification ECU (smart key ECU assembly) via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | CAN communication malfunction with ECM (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
| U0129 | Lost Communication with Brake System Control Module | CAN communication malfunction with skid control ECU (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
| U0131 | Lost Communication with Power Steering Control Module | CAN communication malfunction with rack & pinion power steering gear assembly (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
| U0140 | Lost Communication with Body Control Module | CAN communication malfunction with main body ECU (multiplex network body ECU) (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
| U0164 | Lost Communication with HVAC Control Module | CAN communication malfunction with air conditioning amplifier assembly (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
| U1107 | Lost Communication with Power Management Module | CAN communication malfunction with certification ECU (Smart Key ECU Assembly) (CAN system malfunction) (1 trip detection logic) |
CAN communication system | Does not come on | DTC stored |
HINT:
The details of a DTC can be checked by using the DTC Sub Code of the freeze frame data that was recorded when the DTC was output.
| DTC Sub Code | Detail |
|---|---|
| "47" | Communication malfunction between ECM and sub-battery module assembly |
| "49" | Communication malfunction between skid control ECU and sub-battery module assembly |
| "4F" | Communication malfunction between rack & pinion power steering gear assembly and sub-battery module assembly |
| "44" | Communication malfunction between main body ECU (multiplex network body ECU) and sub-battery module assembly |
| "4E" | Communication malfunction between air conditioning amplifier assembly and sub-battery module assembly |
| "51" | Communication malfunction between certification ECU (smart key ECU assembly) and sub-battery module assembly |