Lexus ES manuals

Lexus ES: Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U023B,U0265,U0293,U1110)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Panoramic View Monitor System (for Hv Model) / Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U023B,U0265,U0293,U1110)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.

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 Off

Control module communication bus off

CAN communication system

U0100

Lost Communication With ECM/PCM "A"

Lost Communication with ECM

CAN communication system

U0126

Steering Sensor Communication

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

U0163

Lost Communication With Navigation Control Module

Lost communication with multi-display assembly

CAN communication system

U0233

Lost Communication with Blind Spot Monitor Master Module

Lost Communication with Blind spot monitor sensor LH

CAN communication system

U023B

Lost Communication with Panoramic View Monitor Control Module

Lost Communication with parking assist ECU

CAN communication system

U0265

Lost Communication with Image Processing Sensor A

Lost Communication with rear television camera assembly

CAN communication system

U0293

Lost Communication with Hybrid Control Module

Lost communication with hybrid vehicle control ECU assembly

CAN communication system

U1110

Lost Communication with Clearance Warning ECU

Lost communication with clearance warning ECU assembly

CAN communication system

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Chassis > Circumference Monitoring Camera Control Module > Clear DTCs

(b) Check for DTCs.

Chassis > Circumference Monitoring Camera Control Module > Trouble Codes

Result

Proceed to

DTCs are output

A

No DTCs are output

B

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 cause the problem symptoms and perform troubleshooting again, even if the DTC was not output when rechecking for DTCs.

    Click here

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

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 Lost Communication with Image Processing Sensor B (U0266-U0268)

DESCRIPTION These DTCs are stored when communication between the parking assist ECU and front television camera assembly, side television camera assembly LH, side television camera RH is not possible.

 CAN Communication Failure (Message Registry) (U1000)

DESCRIPTION If DTC U1000 is stored frequently, duplicate the problem symptoms and perform troubleshooting again even if the DTC is not output when rechecking for DTCs. DTC No. Detection Item DT

 Parking Assist Ecu

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 Center Airbag Sensor Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Center Airbag Sensor Communication Stop Mode Any of the following conditions are met: Communication stop for "Airbag" is indicated on the "Communication Bus Check" screen of the Techstream. Click here Communication stop history fo

 Blind Spot Monitor Master Module Beam Axis Inspection Incomplete (C1ABB)

DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor RH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The purpose of this DTC is to ensure that a beam axis inspection is performed. Completing the beam axis

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