CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart
DTC No. Detection Item Trouble Area Note Link
B1003 ECU Malfunction Network gateway ECU -

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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.

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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.

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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

U0230 Lost Communication with Rear Gate Module

  • Multiplex network door ECU branch line or connector

  • Power source circuit of multiplex network door ECU

  • Multiplex network door ECU ground circuit

  • Multiplex network door 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.

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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 (w/ Seat Position Memory System)

  • Position control ECU and switch assembly RH (w/ Seat Position Memory System)

  • Multiplex tilt and telescopic ECU

  • Multiplex network door ECU (w/ Power Back Door System)

  • Open or short in No. 8 CAN junction connector

  • Open or short in No. 11 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

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