Lexus ES manuals

Lexus ES: Control Module Communication Bus "A" Off (U0073,U0100,U0124,U0126,U0129,U0140,U0155,U0164,U0265)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Support Brake System (for Gasoline Model) / 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 Codes

OK:

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:

 Check Bus 5 Line for Short to +B

DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and termi

 Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during air fuel ratio sensor removal/installation are shown below. Necessary Procedures After Parts Removed/Ins

© 2016-2024 Copyright www.lexguide.net