Inspection Procedure
NOTE:
When replacing the brake actuator assembly, perform zero point calibration (see CALIBRATION
).
HINT:
If DTC C1249/49 is output, repair it before repairing DTC C1267/67 based on the flowchart below.
- READ VALUE OF TECHSTREAM (BRAKE PEDAL LOAD SENSING SWITCH)
- Check the Data List for proper functioning of the brake pedal load sensing switch.
ABS / VSC / TRAC:
MEASUREMENT ITEM/RANGE AND DIAGNOSTIC NOTETester Display Measurement Item/Range Normal Condition Diagnostic Note Brake Pedal Load Sensing SW Brake pedal load sensing switch / ON or OFF ON: Depressed brake pedal
OFF: Released brake pedal- OK: ON (brake pedal is depressed) appears on the screen.
OK: Go to step 4
NG: Go to next step.
- Check the Data List for proper functioning of the brake pedal load sensing switch.
- INSPECT BRAKE PEDAL LOAD SENSING SWITCH
NOTE:
- Do not remove the brake pedal load sensing switch from the brake pedal.
- When there is a malfunction in the brake pedal load sensing switch, replace the brake pedal.
- Turn the ignition switch OFF.
- Disconnect the brake pedal load sensing switch connector.
- Measure the resistance of the switch.
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Condition Specified Condition 2 - 1 Brake pedal depressed (OFF) 0.95 to 1.05 kΩ 2 - 1 Brake pedal released (ON) 202.4 to 223.7 Ω
NG: REPLACE BRAKE PEDAL SUPPORT ASSEMBLY
OK: Go to next step.
- CHECK WIRE HARNESS (SKID CONTROL ECU - BRAKE PEDAL LOAD SENSING SWITCH)
- Disconnect the A19 ECU connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition A19-7 (FSW+) - A2-2 Below 1 Ω A19-7 (FSW+) - Body ground 10 kΩ or higher A2-1 - Body ground Below 1 Ω
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: Go to next step.
- RECONFIRM DTC
- Clear the DTC (see DTC CHECK / CLEAR ).
- Check if the same DTC is recorded (see DTC CHECK / CLEAR
).
Result
DTC RESULT DESCRIPTIONResult Proceed to DTC (C1267/67) is not output A DTC (C1267/67) is output B
B: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY
A: USE SIMULATION METHOD TO CHECK