CAN COMMUNICATION SYSTEM(for LHD) DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart
DTC No. Detection Item Trouble Area Note Link
U0182 Lost Communication with Lighting Control Module Front

  • Headlight light control ECU sub-assembly LH main bus 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

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

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

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

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

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

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

  • Outer mirror control ECU assembly (for driver side)

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

U0201 Lost Communication with "Door Control Module C"

  • Slide door motor unit RH branch line or connector

  • Power source circuit of slide door motor unit RH

  • Slide door motor unit RH ground circuit

  • Slide door motor unit RH

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

U0202 Lost Communication with "Door Control Module D"

  • Slide door motor unit LH branch line or connector

  • Power source circuit of slide door motor unit LH

  • Slide door motor unit LH ground circuit

  • Slide door motor unit 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

U0208 Lost Communication with "Seat Control Module A"

  • Front power seat switch LH branch line or connector

  • Power source circuit of front power seat switch LH

  • Front power seat switch LH ground circuit

  • Front power seat switch 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

U0230 Lost Communication with Rear Gate Module

  • Back door motor unit branch line or connector

  • Power source circuit of back door motor unit

  • Back door motor unit ground circuit

  • Back door motor unit

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

U023A Lost Communication with Front Camera Module

  • Inner rear view mirror assembly branch line or connector

  • Power source circuit of inner rear view mirror assembly

  • Inner rear view mirror assembly ground circuit

  • Inner rear view mirror assembly

Tech Tips

The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.

Click here

U023B Lost Communication with Panoramic View Monitor Control Module

  • Parking assist ECU branch line or connector

  • Power source circuit of parking assist ECU

  • Parking assist ECU ground circuit

  • Parking assist ECU

Tech Tips

The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.

Click here

U024A Lost Communication with Interior Lighting Control Module

  • Room light control relay branch line or connector

  • Power source circuit of room light control relay

  • Room light control relay ground circuit

  • Room light control relay

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 (Network Gateway ECU)

  • Open or short in sub bus 2 main lines or connector

  • Short in sub bus 2 branch lines or connector

  • Network gateway ECU

  • Inner rear view mirror assembly

    (w/ Automatic High Beam System)

  • Parking assist ECU

    (w/ Panoramic View Monitor System)

  • Open or short in No. 2 CAN junction connector

  • Open or short in No. 2 CAN junction terminal

Tech Tips

The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.

Click here

U1002 Lost Communication with Gateway Module (Main Body ECU)

  • Open or short in sub bus 1 main bus 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)

  • Front power seat switch LH

  • Room light control relay

  • Slide door motor unit LH

  • Slide door motor unit RH

  • Headlight light control ECU sub-assembly LH

  • Back door motor unit

  • Open or short in No. 1 CAN junction connector

  • Open or short in No. 5 CAN junction connector

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