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Home >> Lexus >> 2018 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostics - Introduction (13 Of 13) >> Can Communication System >> Diagnostic Trouble Code Chart [06/2014 - 08/2015] >> Diagnostic Trouble Code Chart [06/2014 - 08/2015]
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Diagnostic Trouble Code Chart [06/2014 - 08/2015]

DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Trouble Area Note Link
U0104 Lost Communication with Driving Support ECU
  • Driving support ECU assembly branch line or connector
  • Power source circuit of driving support ECU assembly
  • Driving support ECU assembly ground circuit
  • Driving support ECU assembly
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U0104: Lost Communication with Driving Support ECU [06/2014 - 10/2016]
U0114 Lost Communication with 4WD Control ECU
  • 4WD ECU assembly branch line or connector
  • Power source circuit of 4WD ECU assembly
  • 4WD ECU assembly ground circuit
  • 4WD ECU assembly
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U0114: Lost Communication with 4WD Control ECU [06/2014 - 10/2016]
U0129 Lost Communication with Skid Control ECU
  • Open or short in V3 bus main line or connector
  • Open or short in V3 bus branch line or connector
  • Power source circuit of skid control ECU (brake actuator assembly)
  • Skid control ECU (brake actuator assembly)
  • Power source circuit of power steering ECU assembly
  • Power steering ECU assembly
  • Power source circuit of front steering control ECU
  • Front steering control ECU
  • Open or short in No. 5 CAN junction connector
HINT: 
As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
Refer to DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0131: Lost Communication with Power Steering Control Module [04/2013 - 10/2016]
U0130 Lost Communication with VGRS
  • Open or short in V3 bus main line or connector
  • Open or short in V3 bus branch line or connector
  • Power source circuit of skid control ECU (brake actuator assembly)
  • Skid control ECU (brake actuator assembly)
  • Power source circuit of front steering control ECU
  • Front steering control ECU
  • Power source circuit of absorber control ECU
  • Absorber control ECU
  • Open or short in No. 5 CAN junction connector
HINT: 
As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
Refer to DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0131: Lost Communication with Power Steering Control Module [04/2013 - 10/2016]
U0130 Lost Communication with VGRS
  • Front steering control ECU branch line or connector
  • Power source circuit of front steering control ECU
  • Front steering control ECU ground circuit
  • Front steering control ECU
HINT: 
As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
Refer to DTC U0130: Lost Communication with VGRS [04/2013 - 10/2016]
U0131 Lost Communication with Power Steering Control Module
  • Open or short in V3 bus main line or connector
  • Open or short in V3 bus branch line or connector
  • Power source circuit of power steering ECU assembly
  • power steering ECU assembly
  • Power source circuit of front steering control ECU
  • Front steering control ECU
  • Open or short in No. 5 CAN junction connector
HINT: 
As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
Refer to DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0131: Lost Communication with Power Steering Control Module [04/2013 - 10/2016]
U0132 Lost Communication with Suspension Control ECU
  • Absorber control ECU branch line or connector
  • Power source circuit of absorber control ECU
  • Absorber control ECU ground circuit
  • Absorber control ECU
HINT: 
  • The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
  • As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
Refer to DTC U0132: Lost Communication with Suspension Control ECU [06/2014 - 10/2016]
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)
HINT: 
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.
Refer to DTC U0199: Lost Communication with "Door Control Module A" [06/2014 - 10/2016]
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)
HINT: 
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.
Refer to DTC U0200: Lost Communication with "Door Control Module B" [06/2014 - 10/2016]
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
HINT: 
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.
Refer to DTC U0208: Lost Communication with "Seat Control Module A" [06/2014 - 08/2015]
U0233 Lost Communication with Blind Spot Monitor Master Module
  • Blind spot monitor sensor LH branch line or connector
  • Power source circuit of blind spot monitor sensor LH
  • Blind spot monitor sensor LH ground circuit
  • Blind spot monitor sensor LH
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U0233: Lost Communication with Blind Spot Monitor Master Module [06/2014 - 10/2016]
U0235 Lost Communication with Cruise Control Front Distance Range Sensor
  • Open or short in sub bus 13 main line or connector
  • Millimeter wave radar sensor assembly
  • Power source circuit of millimeter wave radar sensor assembly
  • Millimeter wave radar sensor assembly ground circuit
HINT: 
The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13.
Refer to DTC U1002: Lost Communication with Gateway Module (Sensor Bus); DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor [04/2013 - 10/2016]
U023A Lost Communication with Front Camera Module
  • Lane departure warning camera branch line or connector
  • Power source circuit of lane departure warning camera
  • Lane departure warning camera ground circuit
  • Lane departure warning camera
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U023A: Lost Communication with Front Camera Module [06/2014 - 10/2016]
U0265 Lost Communication with Parking Assist Monitor Module
  • Rear television camera assembly branch line or connector
  • Power source circuit of rear television camera assembly
  • Rear television camera assembly ground circuit
  • Rear television camera assembly
HINT: 
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.
Refer to DTC U0265: Lost Communication with Parking Assist Monitor Module [06/2014 - 10/2016]
U1002 Lost Communication with Gateway Module (Sensor Bus)
  • Open or short in sub bus 13 main line or connector
  • Driving support ECU assembly
  • Power source circuit of driving support ECU assembly
  • Driving support ECU assembly ground circuit
  • Millimeter wave radar sensor assembly
  • Power source circuit of millimeter wave radar sensor assembly
  • Millimeter wave radar sensor assembly ground circuit
HINT: 
The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13.
Refer to DTC U1002: Lost Communication with Gateway Module (Sensor Bus); DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor [04/2013 - 10/2016]
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 with seat position memory system)

  • Outer mirror control ECU assembly

    (for Front passenger side with seat position memory system)

  • Front power seat switch LH

    (w/ Seat position memory system)

  • Rear television camera assembly

    (w/ Parking assist monitor system)

  • Multiplex tilt and telescopic ECU

    (w/ Power tilt and power telescopic system)

  • Open or short in No. 3 CAN junction connector
  • Open or short in No. 4 CAN junction connector
  • Open or short in No. 13 CAN junction connector
  • Open or short in No. 1 CAN junction terminal
HINT: 
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.
Refer to DTC U1002: Lost Communication with Gateway Module (Main Body ECU) [06/2014 - 08/2015]
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
  • 4WD ECU assembly

    (for AWD)

  • Absorber control ECU

    (w/ AVS system)

  • Driving support ECU assembly

    (w/ Pre-collision system)

  • Clearance warning ECU assembly

    (w/ Intuitive parking assist system)

  • Option connector (bus buffer ECU)

    (w/ Option connector)

  • Lane departure warning camera

    (w/ Lane departure alert system)

  • Blind spot monitor sensor LH

    (w/ Blind spot monitor system)

  • Open or short in No. 3 CAN junction connector
  • Open or short in No. 4 CAN junction connector
  • Open or short in No. 10 CAN junction connector
  • Open or short in No. 13 CAN junction connector
  • Open or short in No. 2 CAN junction terminal
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [06/2014 - 10/2016]
U1110 Lost Communication with Clearance Sonar Module
  • Clearance warning ECU assembly branch line or connector
  • Power source circuit of clearance warning ECU assembly
  • Clearance warning ECU assembly ground circuit
  • Clearance warning ECU assembly
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U1110: Lost Communication with Clearance Sonar Module [06/2014 - 10/2016]
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
HINT: 
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.
Refer to DTC U1115: Lost Communication with Tilt & Telescopic Module [06/2014 - 10/2016]
U1117 Lost Communication with Accessory Gateway
  • Option connector (bus buffer ECU) branch line or connector
  • Option Connector (bus buffer ECU)
HINT: 
The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.
Refer to DTC U1117: Lost Communication with Accessory Gateway [06/2014 - 10/2016]