LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Hybrid Control System - Diagnostic Codes (7 Of 7) & Circuit Tests (1 Of 2)) >> HYBRID CONTROL SYSTEM (for PHEV Model) >> DTC U11BC-87: Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message [08/2023 - ] >> Description

DTC U11BC-87: Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message [08/2023 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.

The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the No. 2 skid control ECU (brake actuator assembly).

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
U11BC-87 Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message No. 2 skid control ECU (brake actuator assembly) cannot receive signals from the The hybrid vehicle control ECU
  • No. 2 skid control ECU (brake actuator assembly)
  • Hybrid vehicle control ECU
  • Wire harness or connector
Does not come on Master Warning:
Does not come on
Hybrid Control B SAE Code: U11BC