DTC Combination Table (Open Or Short In Bus 3, Past Communication Error)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- If DTCs indicating a past communication error of an ECU or sensor connected to Bus 3 are output (but the bus is normal when performing the CAN bus check), the probable area that had a malfunction can be determined based on the following DTC combination table.
HINT:
- Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
- If there is a communication error due to an open in a CAN branch line, the malfunctioning area can easily be determined by performing a CAN bus check using the Techstream to determine which ECU or sensor that is connected to the open branch line is not responding (the ECU or sensor has a background color of red).
- ◦: DTC is output.
- -: DTC is not output.
- *1: DTC U0073 may be stored when communication is lost.
- *2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
- If an open occurs in just one of the wires of a CAN branch line, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
- If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.
- Trouble Mode Open in CAN branch line(s) Output ECU Output DTC Active Noise Control ECU Communication Stop Mode
Refer to Active Noise Control ECU Communication Stop Mode [06/2018 - ]Radio Receiver Assembly Communication Stop Mode
Refer to Radio Receiver Assembly Communication Stop Mode [06/2018 - 09/2022]DCM Communication Stop Mode
Refer to DCM Communication Stop Mode [10/2019 - ]Bus 1 Central Gateway ECU (Network Gateway ECU)*2 - - - - Clearance Warning ECU Assembly*1 U0100 - - - U0124 - - - U0126 - - - U0129 - - - U0140 - - - U0155 - - - U0164 - - - U0265 - - - U0293 - - - Forward Recognition Camera
(Dynamic Radar Cruise Control System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0155-87 - - - U0293-87 - - - U1106-87 - - - Forward Recognition Camera
(Pre-collision System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0293-87 - - - Forward Recognition Camera
(Front Camera System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0140-87 - - - U0293-87 - - - Forward Recognition Camera
(Lighting System)U0125-87 - - - U0129-87 - - - U0140-87 - - - U0182-87 - - - U0293-87 - - - Forward Recognition Camera
(Lane Tracing Assist System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0155-87 - - - U0293-87 - - - Bus 1 Forward Recognition Camera
(Road Sign Assist System)U0125-87 - - - U0129-87 - - - U0140-87 - - - U0155-87 - - - U0293-87 - - - Millimeter Wave Radar Sensor Assembly - - - - Parking Assist ECU*1 U0100 - - - U0126 - - - U0129 - - - U0140 - - - U0163 - ◦ - U0233 - - - U0265 - - - U0293 - - - U1110 - - - Blind Spot Monitor Sensor RH U0125 - - - U0126 - - - U0129 - - - U0142 - - - U0293 - - - Rear Television Camera Assembly U0126 - - - U0129 - - - U0140 - - - U0163 - ◦ - U0233 - - - U023B - - - U0293 - - - U1110 - - - Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - - Hybrid Vehicle Control ECU U0100-87 - - - U0110-87 - - - U0164-87 - - - U1107-87 - - - U1170-87 - - - U1175-87 - - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - - U0122-87 - - - Vehicle Approaching Speaker Controller U0129 - - - U0140 - - - U0293 - - - Brake Booster with Master Cylinder Assembly*1 U0100 - - - U0110 - - - U0120 - - - U0151 - - - Bus 2 ECM U0110-87 - - - U0129-87 - - - U0293-87 - - - U1175-87 - - - Battery ECU Assembly U0100-87 - - - U0293-87 - - - Inverter with Converter Assembly U0100-87 - - - U0293-87 - - - U1170-87 - - - Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - - Stereo Component Equalizer Assembly U0100-87 ◦ - - U0129-87 ◦ - - U0140-87 ◦ - - U0164-87 ◦ - - U0293-87 ◦ - - U1151-87 ◦ - - Radio Receiver Assembly*1 U0100 - ◦ - U0129 - ◦ - U0140 - ◦ - U0155 - ◦ - U0164 - ◦ - U0198 - ◦ ◦ U023B - ◦ - U0265 - ◦ - U0293 - ◦ - U1110 - ◦ - DCM (Telematics Transceiver) U0140-87 - - ◦ U0155-87 - - ◦ U0163-87 - ◦ ◦ Bus 4 Central Gateway ECU (Network Gateway ECU)*2 - - - - Occupant Detection ECU U0125 - - - U0129 - - - Absorber Control ECU U0101 - - - U0122 - - - U0124 - - - U0126 - - - U0293 - - - Tire Pressure Warning ECU and Receiver U0129 - - - Steering Sensor - - - - Airbag ECU Assembly U0154 - - - Brake Booster with Master Cylinder Assembly*1 U0100 - - - U0124 - - - U0126 - - - U0128 - - - U0293 - - - Bus 4 Hybrid Vehicle Control ECU U0129-87 - - - U0140-87 - - - U0151-87 - - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - - U0122-87 - - - Brake Actuator Assembly*1 U0125-87 - - - U0129-87 - - - U0140-87 - - - U0293-87 - - - Rack and Pinion Power Steering Gear Assembly U0126 - - - U0129 - - - U023A - - - U0293 - - - ECM U0129-87 - - - Bus 5 Central Gateway ECU (Network Gateway ECU)*2 - - - - Outer Mirror Control ECU Assembly RH U0142 - - - Headlight ECU Sub-assembly RH*1 U0126 - - - U0142 - - - U0182 - - - Luggage Closer Motor Assembly U0101-87 - - - U0122-87 - - - U0142-87 - - - U0155-87 - - - U0327-87 - - - U1117-87 - - - Outer Mirror Control ECU Assembly LH U0142 - - - Position Control ECU Assembly LH - - - - Air Conditioning Amplifier Assembly U0100 - - - U0131 - - - U0142 - - - U0151 - - - U0155 - - - U0163 - ◦ - U0293 - - - Bus 5 Main Body ECU (Multiplex Network Body ECU) U0100 - - - U0101 - - - U0120 - - - U0126 - - - U0129 - - - U0151 - - - U0155 - - - U0163 - ◦ - U0164 - - - U0182 - - - U0199 - - - U0200 - - - U0208 - - - U0230 - - - U023A - - - U0293 - - - U0327 - - - U1106 - - - U1115 - - - U1117 - - ◦ Meter Mirror Sub-assembly U0100-87 - - - U0129-87 - - - U0140-87 - - - U0155-87 - - - U0163-87 - ◦ - U0164-87 - - - U023A-87 - - - U0293-87 - - - U1110-87 - - - Certification ECU (Smart Key ECU Assembly)
(Entry Function)U0100 - - - U0142 - - - U0155 - - - U0230 - - - U0293 - - - U1117 - - - Certification ECU (Smart Key ECU Assembly)
(Power Source Switching Function)U0140 - - - U0155 - - - U0293 - - - U1117 - - - Headlight ECU Sub-assembly LH*1 U0101 - - - U0126 - - - U0129 - - - U0142 - - - U0155 - - - U0242 - - - U0293 - - - Bus 5 Combination Meter Assembly U0100-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0140-87 - - - U0151-87 - - - U0163-87 - ◦ - U0164-87 - - - U0168-87 - - - U0182-87 - - - U0230-87 - - - U0233-87 - - - U023A-87 - - - U0293-87 - - - U1106-87 - - - U1110-87 - - - U1112-87 - - - U1117-87 - - ◦ U1133-87 - - - Multiplex Tilt and Telescopic ECU U0142-87 - - - U0208-87 - - - - Trouble Mode Open in CAN main bus line(s) Output ECU Output DTC Central Gateway ECU (Network Gateway ECU) (CA3H and CA3L Terminal) Central Gateway ECU (Network Gateway ECU) (CAYH and CAYL Terminal) Bus 1 Central Gateway ECU (Network Gateway ECU)*2 - - - Clearance Warning ECU Assembly*1 U0100 - - U0124 - - U0126 - - U0129 - - U0140 - - U0155 - - U0164 - - U0265 - - U0293 - - Forward Recognition Camera
(Dynamic Radar Cruise Control System)U0125-87 - - U0126-87 - - U0129-87 - - U0155-87 - - U0293-87 - - U1106-87 - - Forward Recognition Camera
(Pre-collision System)U0125-87 - - U0126-87 - - U0129-87 - - U0131-87 - - U0293-87 - - Bus 1 Forward Recognition Camera
(Front Camera System)U0125-87 - - U0126-87 - - U0129-87 - - U0140-87 - - U0293-87 - - Forward Recognition Camera
(Lighting System)U0125-87 - - U0129-87 - - U0140-87 - - U0182-87 - - U0293-87 - - Forward Recognition Camera
(Lane Tracing Assist System)U0125-87 - - U0126-87 - - U0129-87 - - U0131-87 - - U0155-87 - - U0293-87 - - Forward Recognition Camera
(Road Sign Assist System)U0125-87 - - U0129-87 - - U0140-87 - - U0155-87 - - U0293-87 - - Millimeter Wave Radar Sensor Assembly - - - Parking Assist ECU*1 U0100 - - U0126 - - U0129 - - U0140 - - U0163 ◦ - U0233 - - U0265 - - U0293 - - U1110 - - Blind Spot Monitor Sensor RH U0125 - - U0126 - - U0129 - - U0142 - - U0293 - - Rear Television Camera Assembly U0126 - - U0129 - - U0140 - - U0163 ◦ - U0233 - - U023B - - U0293 - - U1110 - - Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - Bus 2 Hybrid Vehicle Control ECU U0100-87 - - U0110-87 - - U0164-87 - - U1107-87 - - U1170-87 - - U1175-87 - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - U0122-87 - - Vehicle Approaching Speaker Controller U0129 - - U0140 - - U0293 - - Brake Booster with Master Cylinder Assembly*1 U0100 - - U0110 - - U0120 - - U0151 - - ECM U0110-87 - - U0129-87 - - U0293-87 - - U1175-87 - - Battery ECU Assembly U0100-87 - - U0293-87 - - Inverter with Converter Assembly U0100-87 - - U0293-87 - - U1170-87 - - Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - Stereo Component Equalizer Assembly U0100-87 ◦ - U0129-87 ◦ - U0140-87 ◦ - U0164-87 ◦ - U0293-87 ◦ - U1151-87 ◦ - Radio Receiver Assembly*1 U0100 ◦ - U0129 ◦ - U0140 ◦ - U0155 ◦ - U0164 ◦ - U0198 - - U023B ◦ - U0265 ◦ - U0293 ◦ - U1110 ◦ - DCM (Telematics Transceiver) U0140-87 ◦ - U0155-87 ◦ - U0163-87 - - Bus 4 Central Gateway ECU (Network Gateway ECU)*2 - - - Occupant Detection ECU U0125 - - U0129 - - Bus 4 Absorber Control ECU U0101 - - U0122 - - U0124 - - U0126 - - U0293 - - Tire Pressure Warning ECU and Receiver U0129 - - Steering Sensor - - - Airbag ECU Assembly U0154 - - Brake Booster with Master Cylinder Assembly*1 U0100 - - U0124 - - U0126 - - U0128 - - U0293 - - Hybrid Vehicle Control ECU U0129-87 - - U0140-87 - - U0151-87 - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - U0122-87 - - Brake Actuator Assembly*1 U0125-87 - - U0129-87 - - U0140-87 - - U0293-87 - - Rack and Pinion Power Steering Gear Assembly U0126 - - U0129 - - U023A - - U0293 - - ECM U0129-87 - - Bus 5 Central Gateway ECU (Network Gateway ECU)*2 - - - Outer Mirror Control ECU Assembly RH U0142 - - Headlight ECU Sub-assembly RH*1 U0126 - - U0142 - - U0182 - - Luggage Closer Motor Assembly U0101-87 - - U0122-87 - - U0142-87 - - U0155-87 - - U0327-87 - - U1117-87 ◦ - Outer Mirror Control ECU Assembly LH U0142 - - Position Control ECU Assembly LH - - - Bus 5 Air Conditioning Amplifier Assembly U0100 - - U0131 - - U0142 - - U0151 - - U0155 - - U0163 ◦ - U0293 - - Main Body ECU (Multiplex Network Body ECU) U0100 - - U0101 - - U0120 - - U0126 - - U0129 - - U0151 - - U0155 - - U0163 ◦ - U0164 - - U0182 - - U0199 - - U0200 - - U0208 - - U0230 - - U023A - - U0293 - - U0327 - - U1106 - - U1115 - - U1117 ◦ - Meter Mirror Sub-assembly U0100-87 - - U0129-87 - - U0140-87 - - U0155-87 - - U0163-87 ◦ - U0164-87 - - U023A-87 - - U0293-87 - - U1110-87 - - Certification ECU (Smart Key ECU Assembly)
(Entry Function)U0100 - - U0142 - - U0155 - - U0230 - - U0293 - - U1117 ◦ - Certification ECU (Smart Key ECU Assembly)
(Power Source Switching Function)U0140 - - U0155 - - U0293 - - U1117 ◦ - Headlight ECU Sub-assembly LH*1 U0101 - - U0126 - - U0129 - - U0142 - - U0155 - - U0242 - - U0293 - - Bus 5 Combination Meter Assembly U0100-87 - - U0126-87 - - U0129-87 - - U0131-87 - - U0140-87 - - U0151-87 - - U0163-87 ◦ - U0164-87 - - U0168-87 - - U0182-87 - - U0230-87 - - U0233-87 - - U023A-87 - - U0293-87 - - U1106-87 - - U1110-87 - - U1112-87 - - U1117-87 ◦ - U1133-87 - - Multiplex Tilt and Telescopic ECU U0142-87 - - U0208-87 - - - Trouble Mode CAN bus lines short circuit or short to GND Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground Bus 1 Central Gateway ECU (Network Gateway ECU)*2 - - - - Clearance Warning ECU Assembly*1 U0100 - - - U0124 - - - U0126 - - - U0129 - - - U0140 - - - U0155 - - - U0164 - - - U0265 - - - U0293 - - - Forward Recognition Camera
(Dynamic Radar Cruise Control System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0155-87 - - - U0293-87 - - - U1106-87 - - - Forward Recognition Camera
(Pre-collision System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0293-87 - - - Bus 1 Forward Recognition Camera
(Front Camera System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0140-87 - - - U0293-87 - - - Forward Recognition Camera
(Lighting System)U0125-87 - - - U0129-87 - - - U0140-87 - - - U0182-87 - - - U0293-87 - - - Forward Recognition Camera
(Lane Tracing Assist System)U0125-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0155-87 - - - U0293-87 - - - Forward Recognition Camera
(Road Sign Assist System)U0125-87 - - - U0129-87 - - - U0140-87 - - - U0155-87 - - - U0293-87 - - - Millimeter Wave Radar Sensor Assembly - - - - Parking Assist ECU*1 U0100 - - - U0126 - - - U0129 - - - U0140 - - - U0163 ◦ ◦ ◦ U0233 - - - U0265 - - - U0293 - - - U1110 - - - Blind Spot Monitor Sensor RH U0125 - - - U0126 - - - U0129 - - - U0142 - - - U0293 - - - Rear Television Camera Assembly U0126 - - - U0129 - - - U0140 - - - U0163 ◦ ◦ ◦ U0233 - - - U023B - - - U0293 - - - U1110 - - - Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - - Bus 2 Hybrid Vehicle Control ECU U0100-87 - - - U0110-87 - - - U0164-87 - - - U1107-87 - - - U1170-87 - - - U1175-87 - - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - - U0122-87 - - - Vehicle Approaching Speaker Controller U0129 - - - U0140 - - - U0293 - - - Brake Booster with Master Cylinder Assembly*1 U0100 - - - U0110 - - - U0120 - - - U0151 - - - ECM U0110-87 - - - U0129-87 - - - U0293-87 - - - U1175-87 - - - Battery ECU Assembly U0100-87 - - - U0293-87 - - - Inverter with Converter Assembly U0100-87 - - - U0293-87 - - - U1170-87 - - - Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - - Stereo Component Equalizer Assembly U0100-87 ◦ ◦ ◦ U0129-87 ◦ ◦ ◦ U0140-87 ◦ ◦ ◦ U0164-87 ◦ ◦ ◦ U0293-87 ◦ ◦ ◦ U1151-87 ◦ ◦ ◦ Radio Receiver Assembly*1 U0100 ◦ ◦ ◦ U0129 ◦ ◦ ◦ U0140 ◦ ◦ ◦ U0155 ◦ ◦ ◦ U0164 ◦ ◦ ◦ U0198 ◦ ◦ ◦ U023B ◦ ◦ ◦ U0265 ◦ ◦ ◦ U0293 ◦ ◦ ◦ U1110 ◦ ◦ ◦ DCM (Telematics Transceiver) U0140-87 ◦ ◦ ◦ U0155-87 ◦ ◦ ◦ U0163-87 ◦ ◦ ◦ Bus 4 Central Gateway ECU (Network Gateway ECU)*2 - - - - Occupant Detection ECU U0125 - - - U0129 - - - Bus 4 Absorber Control ECU U0101 - - - U0122 - - - U0124 - - - U0126 - - - U0293 - - - Tire Pressure Warning ECU and Receiver U0129 - - - Steering Sensor - - - - Airbag ECU Assembly U0154 - - - Brake Booster with Master Cylinder Assembly*1 U0100 - - - U0124 - - - U0126 - - - U0128 - - - U0293 - - - Hybrid Vehicle Control ECU U0129-87 - - - U0140-87 - - - U0151-87 - - - Hybrid Vehicle Control ECU
(Dynamic Radar Cruise Control System)U0104-87 - - - U0122-87 - - - Brake Actuator Assembly*1 U0125-87 - - - U0129-87 - - - U0140-87 - - - U0293-87 - - - Rack and Pinion Power Steering Gear Assembly U0126 - - - U0129 - - - U023A - - - U0293 - - - ECM U0129-87 - - - Bus 5 Central Gateway ECU (Network Gateway ECU)*2 - - - - Outer Mirror Control ECU Assembly RH U0142 - - - Headlight ECU Sub-assembly RH*1 U0126 - - - U0142 - - - U0182 - - - Luggage Closer Motor Assembly U0101-87 - - - U0122-87 - - - U0142-87 - - - U0155-87 - - - U0327-87 ◦ ◦ ◦ U1117-87 ◦ ◦ ◦ Outer Mirror Control ECU Assembly LH U0142 - - - Position Control ECU Assembly LH - - - - Bus 5 Air Conditioning Amplifier Assembly U0100 - - - U0131 - - - U0142 - - - U0151 - - - U0155 - - - U0163 ◦ ◦ ◦ U0293 - - - Main Body ECU (Multiplex Network Body ECU) U0100 - - - U0101 - - - U0120 - - - U0126 - - - U0129 - - - U0151 - - - U0155 - - - U0163 ◦ ◦ ◦ U0164 - - - U0182 - - - U0199 - - - U0200 - - - U0208 - - - U0230 - - - U023A - - - U0293 - - - U0327 - - - U1106 - - - U1115 - - - U1117 ◦ ◦ ◦ Meter Mirror Sub-assembly U0100-87 - - - U0129-87 - - - U0140-87 - - - U0155-87 - - - U0163-87 ◦ ◦ ◦ U0164-87 - - - U023A-87 - - - U0293-87 - - - U1110-87 - - - Certification ECU (Smart Key ECU Assembly)
(Entry Function)U0100 - - - U0142 - - - U0155 - - - U0230 - - - U0293 - - - U1117 ◦ ◦ ◦ Certification ECU (Smart Key ECU Assembly)
(Power Source Switching Function)U0140 - - - U0155 - - - U0293 - - - U1117 ◦ ◦ ◦ Headlight ECU Sub-assembly LH*1 U0101 - - - U0126 - - - U0129 - - - U0142 - - - U0155 - - - U0242 - - - U0293 - - - Bus 5 Combination Meter Assembly U0100-87 - - - U0126-87 - - - U0129-87 - - - U0131-87 - - - U0140-87 - - - U0151-87 - - - U0163-87 ◦ ◦ ◦ U0164-87 - - - U0168-87 - - - U0182-87 - - - U0230-87 - - - U0233-87 - - - U023A-87 - - - U0293-87 - - - U1106-87 - - - U1110-87 - - - U1112-87 - - - U1117-87 ◦ ◦ ◦ U1133-87 - - - Multiplex Tilt and Telescopic ECU U0142-87 - - - U0208-87 - - -