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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes (3 Of 3) & Symptom Tests (1 Of 2) >> Meter / Gauge System >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0127-87: Lost Communication with Tire Pressure Monitor Module Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0132-87: Lost Communication with Suspension Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U0168-87: Lost Communication with Vehicle Security Control Module Missing Message; DTC U0182-87: Lost Communication with Lighting Control Module Front Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U0233-87: Lost Communication with Side Obstacle Detection Control Module "B" Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A"; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing; DTC U1100-87: Lost Communication with Seat Belt Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1112-87: Lost Communication with Combination Switch Module Missing Message; DTC U1133-87: Lost Communication with PMN Module Missing Message; DTC U1184-87: Lost Communication with Advanced Drive Control Module Missing Message [10/2023 - ] >> Description
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DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0127-87: Lost Communication with Tire Pressure Monitor Module Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0132-87: Lost Communication with Suspension Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U0168-87: Lost Communication with Vehicle Security Control Module Missing Message; DTC U0182-87: Lost Communication with Lighting Control Module Front Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U0233-87: Lost Communication with Side Obstacle Detection Control Module "B" Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A"; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing; DTC U1100-87: Lost Communication with Seat Belt Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1112-87: Lost Communication with Combination Switch Module Missing Message; DTC U1133-87: Lost Communication with PMN Module Missing Message; DTC U1184-87: Lost Communication with Advanced Drive Control Module Missing Message [10/2023 - ]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0100-87 Lost Communication With ECM/PCM "A" Missing Message Communication stop occurs between the combination meter assembly and ECM continuously for approximately 3.6 seconds or more.
  • CAN communication system
  • ECM
  • Hybrid vehicle control ECU
  • Combination meter assembly
 -
U0103-87 Lost Communication with Gear Shift Control Module "A" Missing Message Communication stop occurs between the combination meter assembly and shift control ECU continuously for 5 seconds or more.
  • CAN communication system
  • Shift control ECU
  • Combination meter assembly
 -
U0127-87 Lost Communication with Tire Pressure Monitor Module Missing Message Communication stop occurs between the combination meter assembly and tire pressure warning ECU and receiver continuously for 5 seconds or more.
  • Tire pressure warning ECU and receiver
  • CAN communication system
  • Combination meter assembly
 -
U0129-87 Lost Communication With Brake System Control Module Missing Message Communication stop occurs between the combination meter assembly and brake actuator assembly (No. 2 skid control ECU) continuously for 3.6 second or more.
  • CAN communication system
  • Brake actuator assembly (No. 2 skid control ECU)
  • Combination meter assembly
 -
U0131-87 Lost Communication With Power Steering Control Module Missing Message Communication stop occurs between the combination meter assembly and rack and pinion power steering gear assembly continuously for approximately 3.6 seconds or more.
  • CAN communication system
  • Power steering ECU assembly
  • Combination meter assembly
 -
U0132-87 Lost Communication with Suspension Control Module "A" Missing Message Communication stop occurs between the combination meter assembly and absorber control ECU continuously for 10 seconds or more.
  • CAN communication system
  • Absorber control ECU
  • Combination meter assembly
 -
U0140-87 Lost Communication with Body Control Module Missing Message Communication stop occurs between the combination meter assembly and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Combination meter assembly
 -
U0151-87 Lost Communication with Restraints Control Module Missing Message Communication stop occurs between the combination meter assembly and airbag ECU assembly continuously for 5 seconds or more.
  • CAN communication system
  • Airbag ECU assembly
  • Combination meter assembly
 -
U0163-87 Lost Communication with Navigation Control Module Communication stop occurs between the combination meter assembly and radio receiver assembly continuously for 5 seconds or more.
  • CAN communication system
  • Radio receiver assembly
  • Combination meter assembly
 -
U0164-87 Lost Communication with HVAC Control Module Missing Message Communication stop occurs between the combination meter assembly and air conditioning amplifier assembly continuously for 5 seconds or more.
  • CAN communication system
  • Air conditioning amplifier assembly
  • Combination meter assembly
 -
U0168-87 Lost Communication with Vehicle Security Control Module Missing Message Communication stop occurs between the combination meter assembly and certification ECU (smart key ECU assembly) continuously for approximately 5 seconds or more.
  • CAN communication system
  • Certification ECU (Smart key ECU assembly)
  • Combination meter assembly
 -
U0182-87 Lost Communication with Lighting Control Module Front Missing Message Communication stop occurs between the combination meter assembly and headlight ECU sub-assembly LH continuously for 5 seconds or more.
  • CAN communication system
  • Headlight ECU sub-assembly LH
  • Combination meter assembly
 -
U0230-87 Lost Communication with Rear Gate Module Missing Message Communication stop occurs between the combination meter assembly and luggage closer motor assembly continuously for 5 seconds or more.
  • CAN communication system
  • Luggage closer motor assembly
  • Combination meter assembly
 -
U0233-87 Lost Communication with Side Obstacle Detection Control Module "B" Missing Message Communication stop occurs between the combination meter assembly and blind spot monitor sensor RH (B) continuously for 5 seconds or more.
  • CAN communication system
  • Blind spot monitor sensor RH (B)
  • Combination meter assembly
 -
U023A-87 Lost Communication with Image Processing Module "A" Communication stop occurs between the combination meter assembly and forward recognition camera continuously for 5 seconds or more.
  • CAN communication system
  • Forward recognition camera
  • Combination meter assembly
 -
U0293-87 Lost Communication with Hybrid/EV Powertrain Control Module Missing Communication stop occurs between the combination meter assembly and hybrid vehicle control ECU continuously for approximately 3.6 seconds or more.
  • CAN communication system
  • Hybrid vehicle control ECU
  • Combination meter assembly
 -
U1100-87 Lost Communication with Seat Belt Control Module Missing Message Communication stop occurs between the combination meter assembly and seat belt control ECU for 5 seconds or more.
  • CAN communication system
  • Seat belt control ECU
  • Combination meter assembly
 -
U1110-87 Lost Communication with Intuitive Parking Assist Module Missing Message Communication stop occurs between the combination meter assembly and clearance warning ECU assembly continuously for 5 seconds or more.
  • CAN communication system
  • Clearance warning ECU assembly
  • Combination meter assembly
 -
U1112-87 Lost Communication with Combination Switch Module Missing Message Communication stop occurs between the combination meter assembly and steering sensor continuously for 10 seconds or more.
  • CAN communication system
  • Steering sensor
  • Combination meter assembly
 -
U1133-87 Lost Communication with PMN Module Missing Message Communication stop occurs between the combination meter assembly and certification ECU (smart key ECU assembly) continuously for approximately 3.6 seconds or more.
  • CAN communication system
  • Certification ECU (Smart key ECU assembly)
  • Combination meter assembly
 -
U1184-87 Lost Communication with Advanced Drive Control Module Missing Message Communication stop occurs between the combination meter assembly and advanced drive ECU assembly continuously for approximately 5 seconds or more.
  • CAN communication system
  • Advanced Drive ECU assembly
  • Combination meter assembly
 w/ Front LiDAR Sensor
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