CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart
DTC No. Detection Item Trouble Area Note Link
B1003 ECU Malfunction Central Gateway ECU (Network Gateway ECU) -

Click here

U0182 Lost Communication with Lighting Control Module Front

  • Headlight light control ECU sub-assembly LH branch line or connector

  • Power source circuit of headlight light control ECU sub-assembly LH

  • Headlight light control ECU sub-assembly LH ground circuit

  • Headlight light control ECU sub-assembly LH

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U0199 Lost Communication with "Door Control Module A"

  • Outer mirror control ECU assembly (for front passenger side) branch line or connector (for LHD)

  • Power source circuit of outer mirror control ECU assembly (for front passenger side) (for LHD)

  • Outer mirror control ECU assembly (for front passenger side) ground circuit (for LHD)

  • Outer mirror control ECU assembly (for front passenger side) (for LHD)

  • Outer mirror control ECU assembly (for driver side) branch line or connector (for RHD)

  • Power source circuit of outer mirror control ECU assembly (for driver side) (for RHD)

  • Outer mirror control ECU assembly (for driver side) ground circuit (for RHD)

  • Outer mirror control ECU assembly (for driver side) (for RHD)

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U0200 Lost Communication with "Door Control Module B"

  • Outer mirror control ECU assembly (for driver side) branch line or connector (for LHD)

  • Power source circuit of outer mirror control ECU assembly (for driver side) (for LHD)

  • Outer mirror control ECU assembly (for driver side) ground circuit (for LHD)

  • Outer mirror control ECU assembly (for driver side) (for LHD)

  • Outer mirror control ECU assembly (for front passenger side) branch line or connector (for RHD)

  • Power source circuit of outer mirror control ECU assembly (for front passenger side) (for RHD)

  • Outer mirror control ECU assembly (for front passenger side) ground circuit (for RHD)

  • Outer mirror control ECU assembly (for front passenger side) (for RHD)

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U0208 Lost Communication with "Seat Control Module A"

  • Position control ECU and switch assembly LH branch line or connector (for LHD)

  • Power source circuit of position control ECU and switch assembly LH (for LHD)

  • Position control ECU and switch assembly LH ground circuit (for LHD)

  • Position control ECU and switch assembly LH (for LHD)

  • Position control ECU and switch assembly RH branch line or connector (for RHD)

  • Power source circuit of position control ECU and switch assembly RH (for RHD)

  • Position control ECU and switch assembly RH ground circuit (for RHD)

  • Position control ECU and switch assembly RH (for RHD)

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U0209 Lost Communication with "Seat Control Module B"

  • Position control ECU and switch assembly RH branch line or connector (for LHD)

  • Power source circuit of position control ECU and switch assembly RH (for LHD)

  • Position control ECU and switch assembly RH ground circuit (for LHD)

  • Position control ECU and switch assembly RH (for LHD)

  • Position control ECU and switch assembly LH branch line or connector (for RHD)

  • Power source circuit of position control ECU and switch assembly LH (for RHD)

  • Position control ECU and switch assembly LH ground circuit (for RHD)

  • Position control ECU and switch assembly LH (for RHD)

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U1002 Lost Communication with Gateway Module (Main Body ECU)

  • Open or short in sub bus 1 main lines or connector

  • Short in sub bus 1 branch lines or connector

  • Main body ECU (multiplex network body ECU)

  • Outer mirror control ECU assembly (for driver side)

  • Outer mirror control ECU assembly (for front passenger side)

  • Position control ECU and switch assembly LH

  • Position control ECU and switch assembly RH

  • Multiplex tilt and telescopic ECU

  • Headlight light control ECU sub-assembly LH

  • Rear television camera assembly (w/ Parking Assist Monitor System w/o Parallel Parking Assist Function)

  • Open or short in No. 3 CAN junction connector (for LHD)

  • Open or short in No. 4 CAN junction connector (for RHD)

  • Open or short in No. 7 CAN junction connector

  • Open or short in No. 9 CAN junction connector

  • Open or short in No. 1 CAN junction terminal

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U110F Lost Communication With Roll Rate Sensor/Vertical Acceleration Sensor Module

  • Open or short in V3 bus main line or connector

  • Short in V3 bus branch line or connector

  • Open in roll rate and vertical acceleration sensor branch line or connector

  • Skid control ECU (brake actuator assembly)

  • ECM

  • Torque vectoring differential ECU assembly

    (w/ Torque Vectoring Differential System)

  • Roll rate and vertical acceleration sensor

  • Open or short in No. 10 CAN junction connector (for LHD)

  • Open or short in No. 6 CAN junction connector (for RHD)

  • Open or short in No. 8 CAN junction connector

Tech Tips

As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.

Click here

U1115 Lost Communication with Tilt & Telescopic Module

  • Multiplex tilt and telescopic ECU branch line or connector

  • Power source circuit of multiplex tilt and telescopic ECU

  • Multiplex tilt and telescopic ECU ground circuit

  • Multiplex tilt and telescopic ECU

Tech Tips

The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

Click here

U1172 Lost Communication with Vehicle Dynamics Control Module (ch2)

  • Open or short in V3 bus main line or connector

  • Short in V3 bus branch line or connector

  • Open in torque vectoring differential ECU assembly branch line or connector

  • Skid control ECU (brake actuator assembly)

  • ECM

  • Torque vectoring differential ECU assembly

  • Roll rate and vertical acceleration sensor

  • Open or short in No. 10 CAN junction connector (for LHD)

  • Open or short in No. 6 CAN junction connector (for RHD)

  • Open or short in No. 8 CAN junction connector

Tech Tips

As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.

Click here