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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Can Communication System - Circuit Tests (1 Of 3) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for PHEV Model) >> DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U0110-00: Lost Communication with Drive Motor Control Module "A"; DTC U0110-87: Lost Communication with Drive Motor Control Module "A" Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); DTC U1150-87: Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message; DTC U1154-87: Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message; DTC U1170-08: Lost Communication with Brake System Control Module "A" (ch2) Bus Signal / Message Failure; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [12/2023 - ] >> Description

DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U0110-00: Lost Communication with Drive Motor Control Module "A"; DTC U0110-87: Lost Communication with Drive Motor Control Module "A" Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); DTC U1150-87: Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message; DTC U1154-87: Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message; DTC U1170-08: Lost Communication with Brake System Control Module "A" (ch2) Bus Signal / Message Failure; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [12/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0110-00 Lost Communication with Drive Motor Control Module "A" Communication stops between the No. 1 skid control ECU (brake booster with master cylinder assembly) and the hybrid motor control inverter assembly.
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • Hybrid motor control inverter assembly
  • No. 15 CAN junction connector
 DTC Output from
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
U0110-87 Lost Communication with Drive Motor Control Module "A" Missing Message Communication stops between the No. 2 skid control ECU (brake actuator assembly) and the hybrid motor control inverter assembly.
  • CAN main/branch bus lines or connector
  • No. 2 skid control ECU (brake actuator assembly)
  • Hybrid motor control inverter assembly
  • No. 15 CAN junction connector
 DTC Output from
  • No. 2 skid control ECU (brake actuator assembly)
U111A-87 Lost Communication with ECM/PCM "A" (ch2) Missing Message Communication stops between the No. 2 skid control ECU (brake actuator assembly) or hybrid vehicle control ECU assembly and the ECM.
  • CAN main/branch bus lines or connector
  • No. 2 skid control ECU (brake actuator assembly)
  • Hybrid vehicle control ECU assembly
  • ECM
  • No. 15 CAN junction connector
 DTC Output from
  • No. 2 skid control ECU (brake actuator assembly)
  • Hybrid vehicle control ECU assembly
U1150-00 Lost Communication with Hybrid Powertrain Control Module (ch2) Communication stops between the No. 1 skid control ECU (brake booster with master cylinder assembly) and the hybrid vehicle control ECU assembly.
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • Hybrid vehicle control ECU assembly
  • No. 15 CAN junction connector
 DTC Output from
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
U1150-87 Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message Communication stops between the ECM or No. 2 skid control ECU (brake actuator assembly) and the hybrid vehicle control ECU assembly.
  • CAN main/branch bus lines or connector
  • ECM
  • No. 2 skid control ECU (brake actuator assembly)
  • Hybrid vehicle control ECU assembly
  • No. 15 CAN junction connector
 DTC Output from
  • ECM
  • No. 2 skid control ECU (brake actuator assembly)
U1154-87 Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message Communication stops between the hybrid vehicle control ECU assembly and the hybrid motor control inverter assembly.
  • CAN main/branch bus lines or connector
  • Hybrid vehicle control ECU assembly
  • Hybrid motor control inverter assembly
  • No. 15 CAN junction connector
 DTC Output from
  • Hybrid vehicle control ECU assembly
U1159-87 Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message Communication stops between the No. 2 skid control ECU (brake actuator assembly) and the No. 1 skid control ECU (brake booster with master cylinder assembly).
  • CAN main/branch bus lines or connector
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • No. 15 CAN junction connector
 DTC Output from
  • No. 2 skid control ECU (brake actuator assembly)
U1170-08 Lost Communication with Brake System Control Module "A" (ch2) Bus Signal / Message Failure Communication stops between the hybrid motor control inverter assembly and the No. 2 skid control ECU (brake actuator assembly).
  • CAN main/branch bus lines or connector
  • Hybrid motor control inverter assembly
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 15 CAN junction connector
 DTC Output from
  • Hybrid motor control inverter assembly
U1170-87 Lost Communication with Brake System Control Module (ch2) Missing Message Communication stops between the hybrid vehicle control ECU assembly or hybrid motor control inverter assembly and the No. 2 skid control ECU (brake actuator assembly).
  • CAN main/branch bus lines or connector
  • Hybrid vehicle control ECU assembly
  • Hybrid motor control inverter assembly
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 15 CAN junction connector
 DTC Output from
  • Hybrid vehicle control ECU assembly
  • Hybrid motor control inverter assembly
U117D-87 Lost Communication with Brake System Control Module (ch4) Missing Message Communication stops between the No. 1 skid control ECU (brake booster with master cylinder assembly) and the No. 2 skid control ECU (brake actuator assembly).
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 15 CAN junction connector
 DTC Output from
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
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