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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 127 (Electronically Controlled Brake System (HV) - Diagnostic Codes (11 Of 11), Symptom Tests & Circuit Tests) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC U0074-88: Control Module Communication Bus "B" Off Bus Off; DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM 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 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 [12/2019 - 10/2021] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different variant/trim than selected.
U0074 (CASE 1)

One of the following conditions is met -
CAN transmission stop instructions On
Difference between CAN frame transmission time and CAN frame reception time 0.003 seconds or more
YGS0 (CAN data) On
U0074 (CASE 2)

One of the following conditions is met -
CAN transmission stop instructions On
Difference between CAN frame transmission time and CAN frame reception time 0.003 seconds or more
STS0 (CAN data) On
U0100

Communication status with ECM (C-Bus) Invalid
U0110

Communication status with inverter with converter assembly Invalid
U111A

Communication status with ECM (P-Bus) Invalid
U0125

Communication status with yaw rate sensor Invalid
U025E

Communication status with No. 1 skid control ECU (brake booster with master cylinder assembly) Invalid
U0293

Communication status with hybrid vehicle control ECU (C-Bus) Invalid
U1107

Communication status with certification ECU (smart key ECU assembly) Invalid
U1150

Communication status with hybrid vehicle control ECU (P-Bus) Invalid
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