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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Can Communication System (HV) - Diagnostics - Introduction (7 Of 7)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Diagnostic Trouble Code Chart [11/2023 - ] >> Diagnostic Trouble Code Chart [11/2023 - ]

Diagnostic Trouble Code Chart [11/2023 - ]

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DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Trouble Area Link
B1020-04 Central Gateway ECU System Internal Failure Central gateway ECU (network gateway ECU) Refer to DTC B1020-04: Central Gateway ECU System Internal Failure [11/2023 - ]
U111A-87 Lost Communication with ECM/PCM "A" (ch2) Missing Message
  • CAN main/branch bus lines or connector
  • ECM
  • Hybrid vehicle control ECU
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
U1150-00 Lost Communication with Hybrid Powertrain Control Module (ch2)
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • Hybrid vehicle control ECU
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
U1150-87 Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message
  • CAN main/branch bus lines or connector
  • ECM
  • Hybrid vehicle control ECU
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
U1159-87 Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
U1170-87 Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message
  • CAN main/branch bus lines or connector
  • Hybrid vehicle control ECU
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
U117D-87 Lost Communication with Brake System Control Module (ch4) Missing Message
  • CAN main/branch bus lines or connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 1 global CAN junction connector
 Refer to DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1150-00: Lost Communication with Hybrid Powertrain Control Module (ch2); 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; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [11/2023 - ]
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