Lexus ES: Control Module Communication Bus "A" Off (U0073,U0100,U0124,U0126,U0129,U0140,U0155,U0164,U0265)
DESCRIPTION
These DTCs are stored if there is a malfunction in the CAN communication system connected to the clearance warning ECU assembly.
HINT:
If CAN communication system DTCs are stored, they may also be stored in other systems.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Control Module Communication Bus "A" Off | Control module communication bus off | CAN communication system |
| U0100 | Lost Communication with ECM / PCM "A" | Lost communication with ECM | CAN communication system |
| U0124 | Lost Communication with Lateral Acceleration Sensor Module | Lost communication with airbag sensor assembly | CAN communication system |
| U0126 | Lost Communication with Steering Angle Sensor Module | Lost communication with steering sensor | CAN communication system |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with skid control ECU | CAN communication system |
| U0140 | Lost Communication with Body Control Module | Lost communication with main body ECU (multiplex network body ECU) | CAN communication system |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | Lost communication with meter circuit plate | CAN communication system |
| U0164 | Lost Communication with HVAC Control Module | Lost communication with air conditioning amplifier assembly | CAN communication system |
| U0265 | Lost Communication with Image Processing Sensor A | Lost communication with rear television camera assembly | CAN communication system |
PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the engine switch from off to on (IG), wait 10 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes(b) Clear the DTCs according to the screen on the Techstream.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs(c) Recheck for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble CodesOK:
No DTCs are output.
HINT:
- If CAN communication system DTCs are stored, they may also be stored in other systems.
- If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
- If these DTCs are output frequently, duplicate the conditions that caused the problem symptoms and perform troubleshooting again, even though DTCs were not output when rechecking for DTCs.
| OK |  | GO TO CAN COMMUNICATION SYSTEM |
| NG | | USE SIMULATION METHOD TO CHECK |
READ NEXT:
Lost Communication with Blind Spot Monitor Slave Module (U0232,U0233)
DESCRIPTION This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH. DTC No. Detection Item DTC Detection Con
CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION When the clearance warning ECU assembly determines that the CAN communication circuit is malfunctioning during self diagnosis, DTC U1000 is stored. DTC No. Detection Item DTC Detect
Utility
UTILITY FREEZE FRAME DATA NOTICE:
Freeze frame data is stored and updated each time the brakes are operated. Only the latest 30 sets of data are stored.
Using the Techstream, make sure to save th
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 FRONT FENDER LINER RETAINER *2 FRONT WHEEL OPENING EXTENSION PAD RH *3 PIN HOLD CLIP *4 REAR FENDER SPLASH SHIELD SUB-ASSEMBLY RH *5 WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY - -
Grille Shutter Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Grille Shutter Communication Stop Mode Any of the following conditions are met:
Communication stop for "Grill Shutter" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
Communication stop history fo
