April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0001-88: High Speed CAN Communication Bus bus off; DTC U0100-00: Lost Communication With ECM/PCM "A"; DTC U0101-00: Lost Communication with TCM; DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module; DTC U0131-00: Lost Communication With Power Steering Control Module; DTC U0140-00: Lost Communication With Body Control Module; DTC U0151-00: Lost Communication With Restraints Control Module; DTC U0155-00: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0214-00: Lost Communication With Remote Function Actuation; DTC U0235-00: Lost Communication With Image Processing Module A [07/2015 - ]: Contents

DTC No.	Detection Item	DTC Detection Condition	Warning Indicate	Memory	Fail-safe Operation	Note
U000188	High Speed CAN Communication Bus bus off	Module communication error (HS-CAN)	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U010000	Lost Communication With ECM/PCM "A"	Communication error with ECM	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U010100	Lost Communication with TCM	Communication error with TCM U010100: ATX	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U012100	Lost Communication With Anti-Lock Brake System (ABS) Control Module	Communication error with brake actuator or DSC	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U013100	Lost Communication With Power Steering Control Module	Communication error with power steering ECU	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U014000	Lost Communication With Body Control Module	Communication error with main body ECU	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U015100	Lost Communication With Restraints Control Module	Communication error with center airbag sensor assembly	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U015500	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Communication error with combination meter	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U021400	Lost Communication With Remote Function Actuation	Communication error with engine stop and start ECU	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test
U023500	Lost Communication With Image Processing Module A	Communication error with laser sensor U023500: With smart city brake support (SCBS)	Not applicable	DTC Stored	Not applicable	Diagnostic assist code: 03/04 Drive cycle: Not applicable Self test type: CMDTC self test

DTC Detection Condition	U000188 Module communication error (HS-CAN) U010000 Communication error with ECM U010100 Communication error with TCM U012100 Communication error with brake actuator or DSC U013100 Communication error with power steering ECU U014000 Communication error with main body ECU U015100 Communication error with center airbag sensor assembly U015500 Communication error with combination meter U021400 Communication error with engine stop and start ECU U023500 Communication error with laser sensor
DTC Detection Condition	U000188 With the ignition switched ON (engine off or on), the navigation receiver cannot detect a CAN bus communication line (HS-CAN) signal for 1 s or more. With the ignition switched ON (engine off or on), the navigation receiver detects malfunction in the CAN bus communication line (HS-CAN) 10 times continuously. U010000 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the ECM for 5 s or more. U010100 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the TCM for 5 s or more. U012100 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the brake actuator or DSC for 5 s or more. U013100 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the power steering ECU for 5 s or more. U014000 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the main body ECU for 5 s or more. U015100 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the center airbag sensor assembly for 5 s or more. U015500 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the combination meter for 5 s or more. U021400 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the engine stop and start ECU for 5 s or more. U023500 With the ignition switched ON (engine off or on), the navigation receiver cannot receive a CAN signal from the laser sensor for 5 s or more.
Fail-safe Operation	U000188 Not applicable U010000 Not applicable U010100 Not applicable U012100 Not applicable U013100 Not applicable U014000 Not applicable U015100 Not applicable U015500 Not applicable U021400 Not applicable U023500 Not applicable
Trouble Area	Malfunction in CAN bus communication line Malfunction in CAN communication line between the ECM and navigation receiver Malfunction in CAN communication line between the TCM and navigation receiver Malfunction in CAN communication line between the brake actuator or DSC and navigation receiver Malfunction in CAN communication line between the power steering ECU and navigation receiver Malfunction in CAN communication line between the main body ECU and navigation receiver Malfunction in CAN communication line between the center airbag sensor assembly and navigation receiver Malfunction in CAN communication line between the combination meter and navigation receiver Malfunction in CAN communication line between the engine stop and start ECU and navigation receiver Malfunction in CAN communication line between the laser sensor and navigation receiver

HINT:

The double-digit number indicates the diagnostic assist code with which DTCs can be detected during the DTC inspection using the diagnostic assist function.

Refer to DIAGNOSTIC ASSIST FUNCTION [07/2015 - ]