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) -

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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.

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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.

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)

    (w/ Seat Position Memory System)

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

    (w/ Seat Position Memory System)

  • Position control ECU and switch assembly LH

  • Position control ECU and switch assembly RH

  • Multiplex tilt and telescopic ECU

    (w/ Power Tilt and Power Telescopic System)

  • Headlight light control ECU sub-assembly LH

    (for Triple Beam Headlight)

  • Open or short in No. 5 CAN junction connector

    (for LHD)

  • Open or short in No. 6 CAN junction connector

    (for RHD)

  • Open or short in No. 10 CAN junction connector

    (for LHD)

  • Open or short in No. 16 CAN junction connector

    (for RHD)

  • 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