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Can Communication-Related DTC (U-Code) Table

CAN COMMUNICATION-RELATED DTC (U-CODE) TABLE

Code No. Diagnostic item Output ECU Action
U0001 Bus Off (CAN-C) ECM, S-AWC-ECU, TC-SST-ECU, Shift lever, ASC-ECU, ETACS-ECU CAN main bus line diagnostics
U0019 Bus Off (CAN-B) KOS-ECU or WCM, SRS-ECU, Combination meter, ETACS-ECU, A/C control panel
U0020 CAN-B Bus off performance Occupant classification-ECU
U0021 CAN-B Bus (HI) circuit open
U0022 CAN-B Bus (HI) shorted to circuit ground
U0023 CAN-B Bus (HI) shorted to circuit power supply
U0024 CAN-B Bus (LO) circuit open
U0025 CAN-B Bus (LO) shorted to circuit ground
U0026 CAN-B Bus (LO) shorted to circuit power supply
U0100 Engine time-out S-AWC-ECU, TC-SST-ECU, Shift lever, ASC-ECU, Combination meter, ETACS-ECU
U0101 TC-SST time-out ECM, S-AWC-ECU, Shift lever, ASC-ECU, ETACS-ECU
U0103 Shift lever time-out TC-SST-ECU, ETACS-ECU
U0121 ASC-ECU time-out ECM, S-AWC-ECU, TC-SST-ECU, Shift lever, ETACS-ECU
U0125 G and yaw rate sensor message time-out error/message error ASC-ECU
U0126 Steering wheel sensor time-out S-AWC-ECU, ASC-ECU, ETACS-ECU
U0136 S-AWC-ECU time-out TC-SST-ECU, ASC-ECU, ETACS-ECU
U0141 ETACS-ECU time-out ECM, S-AWC-ECU, TC-SST-ECU, Shift lever, ASC-ECU, KOS-ECU or WCM, SRS-ECU, Occupant classification-ECU, Combination meter, A/C control panel
U0151 SRS time-out KOS-ECU or WCM, Occupant classification-ECU, Combination meter, ETACS-ECU, A/C control panel
U0154 Occupant Classification-ECU time-out KOS-ECU or WCM, SRS-ECU, Combination meter, ETACS-ECU, A/C control panel
U0155 Meter time-out KOS-ECU or WCM, SRS-ECU, Occupant classification-ECU, ETACS-ECU, A/C control panel
U0164 A/C time-out KOS-ECU or WCM, SRS-ECU, Occupant classification-ECU, Combination meter, ETACS-ECU
U0167 CAN immobilizer (communication) ECM
U0168 WCM/KOS time-out SRS-ECU, Occupant classification-ECU, Combination meter, ETACS-ECU, A/C control panel
U0401 Engine malfunction detected S-AWC-ECU, ASC-ECU Diagnose CAN main bus lines and confirm input signals.
U0428 Communication error in steering wheel sensor
U0431 ETACS malfunction detected S-AWC-ECU
U1003 G and yaw rate sensor bus-off S-AWC-ECU, ASC-ECU
U1108 Excess CAN-B ECU detection ETACS-ECU
U1120 Bus line (CAN-C) low input
U1121 Bus line (CAN-C) high input
U1180 Combination meter time-out ECM CAN main bus line diagnostics
U1412 Implausible vehicle speed signal received KOS-ECU or WCM Diagnose CAN main bus lines and confirm input signals.
U1414 Defective coding data SRS-ECU
U1415 Coding not completed/Data fail S-AWC-ECU, ASC-ECU, KOS-ECU or WCM, SRS-ECU, Combination meter, A/C control panel
U1417 Implausible coding data S-AWC-ECU, ASC-ECU, KOS-ECU or WCM