Lexus ES manuals

Lexus ES: Lost Communication with ECM / PCM "A" (U0100,U0126,U0140,U0163,U0233,U1110)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Assist Monitor System (for Gasoline Model) / Lost Communication with ECM / PCM "A" (U0100,U0126,U0140,U0163,U0233,U1110)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera 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

U0100

Lost Communication with ECM / PCM "A"

Lost Communication with ECM

CAN communication system

U0126

Lost Communication with Steering Angle Sensor Module

Lost communication with steering sensor

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 radio receiver assembly

CAN communication system

U0233

Lost Communication with Blind Spot Monitor Master Module

Lost communication with blind spot monitor sensor RH

CAN communication system

U1110

Lost Communication with Intuitive Parking Assist Module

Lost communication with clearance warning ECU assembly

CAN communication system

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Chassis > Rear Camera > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Chassis > Rear Camera > Trouble Codes

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 though the DTC was not output when rechecking for DTCs.

    Click here

Result

Proceed to

DTCs are output

A

No DTCs are output

B

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

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DESCRIPTION The video signal from the rear television camera assembly is transmitted to the multi-display assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If the cable was disconnected fro

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PrecautionPRECAUTION NOTICE: If the battery is connected, the parking brake will operate when the electric parking brake switch assembly is pulled to the lock side even if the engine switch (for Gasoline Model) or power switch (for HV Model) is off. Do not operate the electric parking brake swit

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