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Home >> Toyota >> 2024 >> Land Cruiser Base >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (5 Of 5), Symptom Tests & Circuit Tests >> Electronically Controlled Brake System >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0114-87: Lost Communication with Four-wheel Drive Clutch Control Module 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 U1107-87: Lost Communication with Power Management Module Missing Message; DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message [02/2024 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

U0100 AND U111A

Monitor runs whenever the following DTCs are not stored C1021 (Case 1): Brake system voltage input out of range low
C137C: Brake system voltage input out of range low
C137D: Brake system voltage input out of range high
P2531: Brake system voltage input open circuit
Both of the following conditions are met A and B
A. +BS voltage 9.5 V or more, and less than 17.4 V
B. Following condition is met 3 seconds or more
IGR voltage Higher than 10 V
U0101

Monitor runs whenever the following DTCs are not stored C1021 (Case 1): Brake system voltage input out of range low
C137C: Brake system voltage input out of range low
C137D: Brake system voltage input out of range high
All of the following conditions are met A, B and C
A. +BS voltage 9.5 V or more, and less than 17.4 V
B. Following condition is met 3 seconds or more
IGR voltage Higher than 10 V
C. Transmission type AT
U0114

Monitor runs whenever the following DTCs are not stored C1021 (Case 1): Brake system voltage input out of range low
C137C: Brake system voltage input out of range low
C137D: Brake system voltage input out of range high
All of the following conditions are met A, B and C
A. +BS voltage 9.5 V or more, and less than 17.4 V
B. Following condition is met 3 seconds or more
IGR voltage Higher than 10 V
C. Drive Type 4WD
U0125 AND U025E

Monitor runs whenever the following DTCs are not stored C1021 (Case 1): Brake system voltage input out of range low
C137C: Brake system voltage input out of range low
C137D: Brake system voltage input out of range high
Both of the following conditions are met A and B
A. +BS voltage 9.5 V or more, and less than 17.4 V
B. Following condition is met 3 seconds or more
IGR voltage Higher than 10 V
U1107

Monitor runs whenever the following DTCs are not stored C1021 (Case 1): Brake system voltage input out of range low
C137C: Brake system voltage input out of range low
C137D: Brake system voltage input out of range high
All of the following conditions are met A and B
A. +BS voltage 9.5 V or more, and less than 17.4 V
B. Following condition is met -
Following condition is met More than 3 seconds
IGR voltage Higher than 10 V
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