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Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Diagnostics - Introduction) (2 Of 2) >> Can Communication System >> Diagnostic Trouble Code Chart (08/2010 - 08/2011) >> Diagnostic Trouble Code Chart

Diagnostic Trouble Code Chart

HINT: 

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See" below.

CAN COMMUNICATION SYSTEM

DTC Code Detection Item Trouble Area DTC Output from See
U0114/38 Lost Communication with 4WD Control ECU - Power source circuit of 4WD control ECU
- 4WD control ECU
- 4WD control ECU branch wire or connector
Network gateway ECU Refer to DTC U0114/38: Lost Communication with 4WD Control ECU
U0122 Lost Communication with Vehicle Dynamics Control Module - Power source circuit of master cylinder solenoid (skid control ECU)
- One side of CAN branch wire of other systems
- Master cylinder solenoid (skid control ECU)
- Master cylinder solenoid (skid control ECU) branch wire or connector
Network Gateway ECU Refer to DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0129: Lost Communication with Brake System Control Module
U0123 Lost Communication with Yaw Rate Sensor Module - Power source circuit of yaw rate sensor assembly
- Yaw rate sensor assembly
- Yaw rate sensor branch wire or connector
Network gateway ECU Refer to DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module
U0124 Lost Communication with Lateral Acceleration Sensor Module - Power source circuit of yaw rate sensor assembly
- Yaw rate sensor assembly
- Yaw rate sensor branch wire or connector
Network gateway ECU Refer to DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module - Power source circuit of steering angle sensor
- One side of CAN branch wire of other systems
- Steering angle sensor
- Steering angle sensor branch wire or connector
Network gateway ECU Refer to DTC U0126: Lost Communication with Steering Angle Sensor Module
U0127 Lost Communication with Tire Pressure Monitor Module - Power source circuit of tire pressure warning ECU
- Tire pressure warning ECU
- Tire pressure warning ECU branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0127: Lost Communication with Tire Pressure Monitor Module
U0129 Lost Communication with Brake System Control Module - Power source circuit of master cylinder solenoid (skid control ECU)
- One side of CAN branch wire of other systems
- Master cylinder solenoid (skid control ECU)
- Master cylinder solenoid (skid control ECU) branch wire or connector
Network gateway ECU Refer to DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0129: Lost Communication with Brake System Control Module
U0130 Lost Communication with Steering Effort Control Module - Power source circuit of steering control ECU
- One side of CAN branch wire of other systems
- Steering control ECU
- Steering control ECU branch wire or connector
Network gateway ECU Refer to DTC U0130: Lost Communication with Steering Effort Control Module
U0132 Lost Communication with Suspension Control ECU - Power source circuit of suspension control ECU
- One side of CAN branch wire of other systems
- Suspension control ECU
- Suspension control ECU branch wire or connector
Network gateway ECU Refer to DTC U0132: Lost Communication with Suspension Control ECU
U0141 Lost Communication with Body Control Module "A" - Power source circuit of No. 2 main body ECU
- No. 2 main body ECU
- No. 2 main body ECU branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0141: Lost Communication with Body Control Module "A"
U0199 Lost Communication with "Door Control Module A" - Power source circuit of outer mirror control ECU assembly
- Outer mirror control ECU assembly
- Outer mirror control ECU branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0199: Lost Communication with "Door Control Module A"
U0208 Lost Communication with "Seat Control Module A" - Power source circuit of position control ECU and switch assembly
- Position control ECU and switch assembly
- Position control ECU and switch branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0208: Lost Communication with "Seat Control Module A"
U0230 Lost Communication with Rear Gate Module - Power source circuit of power back door unit (power back door ECU)
- Power back door unit (power back door ECU)
- Power back door unit (power back door ECU) branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0230: Lost Communication with Rear Gate Module
U0327 Software Incompatibility with Vehicle Security Control Module - Power source circuit of certification ECU (smart key ECU assembly)
- Certification ECU (smart key ECU assembly)
- Certification ECU (smart key ECU assembly) branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U0327: Software Incompatibility with Vehicle Security Control Module
U1002 (CAN MS BUS) Lost Communication with Gateway Module (Main body ECU) - MS bus circuit
- Certification ECU (smart key ECU assembly) branch wire or connector
- Position control ECU and switch branch wire or connector
- Outer mirror control ECU branch wire or connector
- Multiplex tilt and telescopic ECU branch wire or connector
- Tire pressure warning ECU branch wire or connector
- Power back door unit (power back door ECU) branch wire or connector
- Windshield wiper ECU branch wire or connector
- No. 2 main body ECU branch wire or connector
- Main body ECU (cowl side junction block LH) main wire or connector
- Combination meter main wire or connector
- Certification ECU (smart key ECU assembly)
- Position control ECU and switch assembly
- Outer mirror control ECU assembly
- Multiplex tilt and telescopic ECU
- Tire pressure warning ECU
- Power back door unit (power back door ECU)
- Windshield wiper ECU
- No. 2 main body ECU
- Main body ECU (cowl side junction block LH)
- Combination meter assembly
- No. 8 junction connector
- No. 9 junction connector
- No. 10 junction connector
- No. 2 CAN junction connector
Main body ECU (cowl side junction block LH) Refer to DTC U1002 (CAN MS BUS): Lost Communication with Gateway Module (Main body ECU)
U1002 (CAN No. 2 BUS) Lost Communication with Gateway Module (Network Gateway ECU) - Movement control bus circuit
- 4WD control ECU branch wire or
connector
- Yaw rate sensor branch wire or connector
- Seat belt control ECU branch wire or
connector
- Distance control ECU branch wire or
connector
- Parking assist ECU branch wire or
connector
- Master cylinder solenoid (skid control
ECU) branch wire or connector
- Steering angle sensor branch wire or
connector
- Network gateway ECU main wire or
connector
- Suspension control ECU branch wire or
connector
- Steering control ECU branch wire or
connector
- 4WD control ECU
- Yaw rate sensor
- Seat belt control ECU
- Distance control ECU
- Parking assist ECU
- Master cylinder solenoid (skid control
ECU)
- Steering angle sensor
- Suspension control ECU
- Steering control ECU
- Network gateway ECU
- No. 4 junction connector
- No. 5 junction connector
- No. 6 junction connector
- No. 7 junction connector
- No. 1 CAN junction connector
Network gateway ECU Refer to DTC U1002 (CAN No. 2 BUS): Lost Communication with Gateway Module (Network Gateway ECU)
U1100 Lost Communication with Seat Belt Control ECU - Power source circuit of seat belt control ECU
- Seat belt control ECU
- Seat belt control ECU branch wire or connector
Network gateway ECU Refer to DTC U1100: Lost Communication with Seat Belt Control ECU
U1101 Lost Communication with Distance Control ECU - Power source circuit of distance control ECU assembly
- Distance control ECU assembly
- Distance control ECU assembly branch wire or connector
Network gateway ECU Refer to DTC U1101: Lost Communication with Distance Control ECU
U1111 Lost Communication with Body No. 5 Module - Power source circuit of windshield wiper ECU
- Windshield wiper ECU
- Windshield wiper ECU branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U1111: Lost Communication with Body No. 5 Module
U1115 Lost Communication with Tilt and Telescopic Module - Power source circuit of multiplex tilt and telescopic ECU
- Multiplex tilt and telescopic ECU
- Multiplex tilt and telescopic ECU branch wire or connector
Main body ECU (cowl side junction block LH) Refer to DTC U1115: Lost Communication with Tilt and Telescopic Module
U1126 Lost Communication with Parking Assist ECU - Power source circuit of parking assist ECU
- Parking assist ECU
- Parking assist ECU branch wire or connector
Network gateway ECU Refer to DTC U1126: Lost Communication with Parking Assist ECU