Refer to DTC C004013.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| C00409E | Brake Pedal Switch "A" Stuck On | Either of the following is detected:
·
With the stop light switch off, the brake pedal load sensing switch on, and the master cylinder pressure less than 0.7 MPa (7.13 kgf/cm2, 101 psi), the vehicle acceleration rate is more than -0.8 m/s2 for 10 seconds or more. (Only when the engine is running and booster malfunctions are not detected.) ·
Condition which the brake pedal load sensing switch remains on while the vehicle speed increases from 0 km/h (0 mph) to 30 km/h (19 mph) occurs 5 times in succession. |
·
Brake pedal load sensing switch (brake pedal support assembly) ·
Wire harness and connector ·
Skid control ECU (brake actuator assembly) |
Brake/EPB | B |
| C00409F | Brake Pedal Switch "A" Stuck Off | Either of the following is detected:
·
With the stop light switch on, the brake pedal load sensing switch off, and the master cylinder pressure more than 6 MPa (61.2 kgf/ cm2, 870 psi), the vehicle acceleration rate is less than -4 m/s2 for 1 second or more. ·
With the stop light switch on, the brake pedal load sensing switch off, and the master cylinder pressure more than 6 MPa (61.2 kgf/ cm2, 870 psi), the vehicle speed is 0 km/h (0 mph) for 5 seconds or more. |
·
Brake pedal load sensing switch (brake pedal support assembly) ·
Wire harness and connector ·
Skid control ECU (brake actuator assembly) |
Brake/EPB | B |
Check if the same DTC is output.
When P057111, P057112, and/or P057113 is output together with C00409E and/or C00409F, inspect and repair the trouble areas indicated by P057111, P057112, and/or P057113 first.
| Result | Proceed to |
|---|---|
| C00409E and P057111 are output | A |
| C00409E and P057112 are output | B |
| C00409E and P057113 are output | C |
| C00409F and P057111 are output | D |
| C00409F and P057112 are output | E |
| C00409F and P057113 are output | F |
| Only C00409E or C00409F is output | G |
A
B
C
D
E
F
G
Check that the stop light switch display and brake pedal load sensing switch (brake pedal support assembly) display observed on the GTS change according to brake pedal operation.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Stop Light SW | Stop light switch assembly (STP terminal input) | OFF / ON | OFF: Brake pedal released
ON: Brake pedal depressed |
|
| Brake Pedal Load Sensing SW | Brake pedal load sensing switch (brake pedal support assembly) | OFF / ON | OFF: Brake pedal load sensing switch (brake pedal support assembly) OFF
ON: Brake pedal load sensing switch (brake pedal support assembly) ON |
- |
| Tester Display |
|---|
| Stop Light SW |
| Brake Pedal Load Sensing SW |
The GTS displays ON or OFF according to brake pedal operation.
Slowly depress the brake pedal, and check when the stop light switch and brake pedal load sensing switch (brake pedal support assembly) turn on.
First the stop light switch turns on, and then the brake pedal load sensing switch (brake pedal support assembly) turns on.
| Result | Proceed to |
|---|---|
| OK | A |
| NG (Turning on of the brake pedal load sensing switch (brake pedal support assembly) is not confirmed.) | B |
| NG (The brake pedal load sensing switch (brake pedal support assembly) turns on first.) | C |
A
B
C
Pre-procedure1
None
Procedure1
Clear the DTCs.
| Proceed to |
|---|
| NEXT |
Post-procedure1
Turn the ignition switch to off.
NEXT
Pre-procedure1
Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
Procedure1
Check if the same DTC is output.
| Result | Proceed to |
|---|---|
| C00409E and C00409F are not output | A |
| C00409E and C00409F are output | B |
Post-procedure1
None
A
B
The brake pedal load sensing switch (brake pedal support assembly) is normal.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Procedure1
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
The connector is securely connected.
Pre-procedure1
Disconnect the A84 brake pedal load sensing switch (brake pedal support assembly) connector.
Disconnect the A40 skid control ECU (brake actuator assembly) connector.
Procedure2
Check both the connector case and the terminals for deformation and corrosion.
No deformation or corrosion.
Procedure3
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
|
Click Location & Routing(A40,A84)Location & Routingewd_type=routing;type=c,c;code=A40,A84 Click Connector(A40)Engine Compartment>Engine Room Main Wire / Transmission Wire>Brake Actuator Assemblyewd_type=component;type=c;code=A40;pinno=10 Click Connector(A84)Instrument Panel>Engine Room Main Wire>Brake Pedal Support Assemblyewd_type=component;type=c;code=A84;pinno=2,1 |
||
| A40-10 (FSW+) - A84-2 | Always | Below 1 Ω |
| A40-10 (FSW+) or A84-2 - Body ground | Always | 10 kΩ or higher |
| A84-1 - Body ground | 1 minute or more after disconnecting the cable from the negative (-) battery terminal | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG
Pre-procedure1
Turn the ignition switch off.
Procedure1
Check the brake pedal height and stop light switch assembly installation are normal.
The brake pedal height and stop light switch assembly installation are normal.
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG