| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM10000000260S1 |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C054017; Brake Pressure Sensor "A" Circuit Voltage Above Threshold; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ] | ||
|
DTC |
C054017 |
Brake Pressure Sensor "A" Circuit Voltage Above Threshold |
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C054017 |
Brake Pressure Sensor "A" Circuit Voltage Above Threshold |
When vehicle speed exceeds 3 km/h (2 mph) and stop light switch assembly is OFF, master cylinder pressure continuously exceeds 1.764 MPa (18.0 kgf/cm2, 255 psi) for 5 seconds or more. |
|
WIRING DIAGRAM
Refer to DTC C13807E.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C13807E; Stop Lamp Relay Actuator Stuck On+](/t3Portal/stylegraphics/info.gif)
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs
(b) Turn the ignition switch off.
|
|
2. |
RECONFIRM DTC |
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
(b) Check if the same DTC is output.
Chassis > Brake/EPB > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC C054017 is output |
A |
|
DTCs C054017 and P057113 are output |
B |
| B |
|
|
|
3. |
READ VALUE USING GTS (STOP LIGHT SWITCH ASSEMBLY) |
(a) Check that the stop light switch assembly condition observed on the GTS changes according to brake pedal operation.
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Stop Light SW |
Stop light switch assembly status (STP or STP2 terminal input) |
OFF / ON |
OFF: Brake pedal released ON: Brake pedal depressed |
HINT:
|
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Stop Light SW |
OK:
The GTS displays OFF / ON according to brake pedal operation.
| NG |
|
|
|
4. |
READ VALUE USING GTS (MASTER CYLINDER SENSOR 1) |
(a) Start the engine.
(b) Check the value of Data List item Master Cylinder Sensor 1 when the brake pedal is released.
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Master Cylinder Sensor 1 |
Master cylinder pressure sensor pressure (value detected by ECU) |
Min.: -1.00 MPa Max.: 23.99 MPa |
Brake pedal released: -1.00 to 0.00 MPa |
Reading increases when brake pedal is depressed |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Master Cylinder Sensor 1 |
OK:
The value of Data List item Master Cylinder 1 is within standard range.
| NG |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
|
|
5. |
CLEAR DTC |
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs
(b) Turn the ignition switch off.
|
|
6. |
RECONFIRM DTC |
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
(b) Check if the same DTC is output.
Chassis > Brake/EPB > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC C054017 is not output. |
A |
|
DTC C054017 is output. |
B |
| A |
|
| B |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
|
7. |
CHECK STOP LIGHT SWITCH ASSEMBLY INSTALLATION |
(a) Turn the ignition switch off.
(b) Check the stop light switch assembly installation.
Click here
OK:
The stop light switch assembly installation are normal.
| NG |
|
|
|
8. |
INSPECT STOP LIGHT SWITCH ASSEMBLY |
Click here
OK:
The stop light switch assembly is normal.
| NG |
|
|
|
9. |
CHECK HARNESS AND CONNECTOR (STP TERMINAL) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A140 skid control ECU (brake actuator assembly) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A140-11 (STP) - Body ground |
Stop light switch assembly on (Brake pedal depressed) |
8 to 14 V |
|
A140-11 (STP) - Body ground |
Stop light switch assembly off (Brake pedal released) |
Below 1.5 V |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|