CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

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

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U0199 Lost Communication with "Door Control Module A"

  • Power source circuit of outer mirror control ECU assembly LH

  • Outer mirror control ECU assembly LH ground circuit

  • Outer mirror control ECU assembly LH CAN branch wire or connector

  • Outer mirror control ECU assembly LH

 Main body ECU (multiplex network body ECU)

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U0200 Lost Communication with "Door Control Module B"

  • Power source circuit of outer mirror control ECU assembly RH

  • Outer mirror control ECU assembly RH ground circuit

  • Outer mirror control ECU assembly RH CAN branch wire or connector

  • Outer mirror control ECU assembly RH

 Main body ECU (multiplex network body ECU)

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U0208 Lost Communication with "Seat Control Module A"

  • Power source circuit of front power seat switch (for driver side)

  • Front power seat switch (for driver side) ground circuit

  • Front power seat switch (for driver side) CAN branch wire or connector

  • Front power seat switch (for driver side)

 Main body ECU (multiplex network body ECU)

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U0230 Lost Communication with Rear Gate Module

  • Power source circuit of multiplex network door ECU

  • Multiplex network door ECU ground circuit

  • Multiplex network door ECU CAN branch wire or connector

  • Multiplex network door ECU

 Main body ECU (multiplex network body ECU)

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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)

  • Front power seat switch (for Driver Side)

    (w/ Memory)

  • Multiplex tilt and telescopic ECU (for Power Tilt and Power Telescopic Steering Column)

  • Multiplex network door ECU

    (w/ Power Back Door System)

  • Outer mirror control ECU assembly LH (w/ Memory)

  • Outer mirror control ECU assembly RH (w/ Memory)

  • Open or short in No. 4 CAN junction connector

  • Open or short in No. 5 CAN junction connector

  • Open or short in No. 7 CAN junction connector

  • Open or short in No. 2 CAN junction terminal

 Main body ECU (multiplex network body ECU)

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U1115 Lost Communication with Tilt & Telescopic Module

  • Power source circuit of multiplex tilt and telescopic ECU

  • Multiplex tilt and telescopic ECU ground circuit

  • Multiplex tilt and telescopic ECU CAN branch wire or connector

  • Multiplex tilt and telescopic ECU

 Main body ECU (multiplex network body ECU)

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