- The power source mode is changed to off (the engine is stopped) by pressing the engine switch while the vehicle is being driven.
- With the electrical key transmitter sub-assembly in the cabin, even if an engine start operation is performed, the engine will not start.
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028K9S |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): B228231,B228262; Vehicle Speed Signal Circuit Open; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ] | ||
|
DTC |
B228231 |
Vehicle Speed Signal Circuit Open |
|
DTC |
B228262 |
Vehicle Speed Signal Compare Failure |
DESCRIPTION
DTC B228231 is stored when the vehicle speed signal sent by the skid control ECU via direct line and the vehicle speed signal sent via CAN communication do not match.
DTC B228262 is stored when a malfunction in the vehicle speed sensor is detected.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|
|
B228231 |
Vehicle Speed Signal Circuit Open |
Vehicle speed signal malfunction is detected (excessive deceleration is detected). (1-trip detection logic*) |
|
DTC Output Confirmation Operation:
|
|
B228262 |
Vehicle Speed Signal Compare Failure |
The vehicle speed signal sent by the skid control ECU via direct line and the vehicle speed signal sent via CAN communication do not match. (1-trip detection logic*) |
|
DTC Output Confirmation Operation:
|
- *: Only detected while a malfunction is present and the ignition switch is ON.
Vehicle Condition and Fail-safe Function when Malfunction Detected
|
DTC Code |
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
|---|---|---|
|
B228231 |
|
Steering lock motor operation is prohibited.* |
|
B228262 |
|
- |
- *: for Manual Transaxle
Related Data List and Active Test Items
|
DTC No. |
Data List and Active Test |
|---|---|
|
B228231 B228262 |
Power Source Control
Brake/EPB
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins.
Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Start Key(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
-
The smart key system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
-
Before replacing the certification ECU (smart key ECU assembly), refer to Registration.
Click here
- After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
|
1. |
READ VALUE USING GTS (VEHICLE SPEED) |
(a) Read the Data List according to the display on the GTS.
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Vehicle Speed |
Vehicle speed |
Min.: 0.0 km/h (0 mph) Max.: 6553.5 km/h (4072 mph) |
Vehicle stopped: 0.0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Vehicle Speed |
OK:
Vehicle speed displayed on the GTS is almost the same as the actual vehicle speed measured using a speedometer tester.
| NG |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM w/ Electric Parking Brake System: Click here
w/o Electric Parking Brake System: Click here
|
|
|
2. |
READ VALUE USING GTS (VEHICLE RUNNING CONDITION (LINE)) |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Power Source Control > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Vehicle Running Condition (Line) |
Vehicle being driven or stopped |
Stop or Running |
Stop: Vehicle stopped |
- |
Body Electrical > Power Source Control > Data List
|
Tester Display |
|---|
|
Vehicle Running Condition (Line) |
OK:
The GTS display changes correctly in response to the vehicle condition.
|
Result |
Proceed to |
|---|---|
|
The value of Vehicle Running Condition (Line) is Stop |
A |
|
The value of Vehicle Running Condition (Line) is not Stop |
B |
| B |
|
|
|
3. |
READ VALUE USING GTS (VEHICLE RUNNING CONDITION (LINE)) |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Power Source Control > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Vehicle Running Condition (Line) |
Vehicle being driven or stopped |
Stop or Running |
Running: Vehicle being driven at 5 km/h (3 mph) or more |
- |
Body Electrical > Power Source Control > Data List
|
Tester Display |
|---|
|
Vehicle Running Condition (Line) |
OK:
The GTS display changes correctly in response to the vehicle condition.
|
Result |
Proceed to |
|---|---|
|
The value of Vehicle Running Condition (Line) is Running |
A |
|
The value of Vehicle Running Condition (Line) is not Running |
B |
| A |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM w/ Electric Parking Brake System: Click here
w/o Electric Parking Brake System: Click here
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
Pre-procedure1
(a) Disconnect the A51*1 or A140*2 skid control ECU (brake actuator assembly) connector.
- *1: for M20A-FKS
- *2: for G16E-GTS
(b) Disconnect the O175 certification ECU (smart key ECU assembly) connector.
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for M20A-FKS
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O175-13 (SPD) - A51-33 (SP1) |
Always |
Below 1 Ω |
|
O175-13 (SPD) or A51-33 (SP1) - Other terminals and body ground |
Always |
10 kΩ or higher |
Standard Resistance:
for G16E-GTS
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O175-13 (SPD) - A140-18 (SP1) |
Always |
Below 1 Ω |
|
O175-13 (SPD) or A140-18 (SP1) - Other terminals and body ground |
Always |
10 kΩ or higher |
Post-procedure1
(d) None
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Pre-procedure1
(a) Connect the O175 certification ECU (smart key ECU assembly) connector.
(b) Connect the A51*1 or A140*2 skid control ECU (brake actuator assembly) connector.
- *1: for M20A-FKS
- *2: for G16E-GTS
Procedure1
(c) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
*b |
Waveform 1 |
OK:
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
O175-13 (SPD) - I167-29 (E) |
Ignition switch ON, vehicle being driven at approx. 5 km/h (3 mph) |
5 V/DIV., 20 ms./DIV. |
Pulse generation (See waveform 1) |
HINT:
The wavelength becomes shorter as the vehicle speed increases.
Post-procedure1
(d) None
| OK |
|
| NG |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM w/ Electric Parking Brake System: Click here
w/o Electric Parking Brake System: Click here
|
|
|