Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GU33
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): DIAGNOSTIC TROUBLE CODE CHART; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DIAGNOSTIC TROUBLE CODE CHART

Smart Key System (for Entry Function)

DTC No.

Detection Item

Link

B27A1

Open in Driver Side Electrical Antenna Circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): B27A1; Open in Driver Side Electrical Antenna Circuit

B27A2

Open in Front Passenger Side Electrical Antenna Circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): B27A2; Open in Front Passenger Side Electrical Antenna Circuit

B27A7

Open in Inside Luggage Compartment Electrical Key Oscillator Circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): B27A7; Open in Inside Luggage Compartment Electrical Key Oscillator Circuit

B27A8

Open in Outside Luggage Compartment Electrical Key Antenna Circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): B27A8; Open in Outside Luggage Compartment Electrical Key Antenna Circuit

U0100

Lost Communication With ECM/PCM "A"

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): U0100,U0129,U0142,U0155,U0293; Lost Communication With ECM/PCM "A"

U0129

Lost Communication with Brake System Control Module

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): U0100,U0129,U0142,U0155,U0293; Lost Communication With ECM/PCM "A"

U0142

Lost Communication with Body Control Module "B"

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): U0100,U0129,U0142,U0155,U0293; Lost Communication With ECM/PCM "A"

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): U0100,U0129,U0142,U0155,U0293; Lost Communication With ECM/PCM "A"

U0293

Lost Communication With Hybrid Vehicle Control System

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): U0100,U0129,U0142,U0155,U0293; Lost Communication With ECM/PCM "A"