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Home >> Toyota >> 2025 >> Prius LE >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (6 Of 6), Circuit Tests & Symptom Tests >> Electronically Controlled Brake 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 U0110-87: Lost Communication with Drive Motor Control Module "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module 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 U025E-87: Lost Communication with Electronic Brake Booster Control Module "A" Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1107-87: Lost Communication with Power Management Module Missing Message; DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-87: Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message [12/2022 - 03/2023] >> Component Operating Range
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Component Operating Range

U0100

Both of the following conditions are met -
Communication reception with ECM (CH1) Not delayed
No checksum error with ECM (CH1) -
U0110

Both of the following conditions are met -
Communication reception with inverter with converter assembly "A" (CH2) Not delayed
No checksum error with inverter with converter assembly "A" (CH2) -
U0125

Both of the following conditions are met -
Communication reception with yaw rate and acceleration sensor (airbag ECU assembly) Not delayed
No checksum error with yaw rate and acceleration sensor (airbag ECU assembly) -
U025E

Both of the following conditions are met -
Communication reception with No. 1 skid control ECU (brake booster with master cylinder assembly) (CH1) Not delayed
No checksum error with No. 1 skid control ECU (brake booster with master cylinder assembly) (CH1) -
U0293

Both of the following conditions are met -
Communication reception with hybrid vehicle control ECU (CH1) Not delayed
No checksum error with hybrid vehicle control ECU (CH1) -
U1107

Both of the following conditions are met -
Communication reception with certification ECU (smart key ECU assembly) Not delayed
No checksum error with certification ECU (smart key ECU assembly) -
U111A

Both of the following conditions are met -
Communication reception with ECM (CH2) Not delayed
No checksum error with ECM (CH2) -
U1150

Both of the following conditions are met -
Communication reception with hybrid vehicle control ECU (CH2) Not delayed
No checksum error with hybrid vehicle control ECU (CH2) -
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