(d) Check that the stop light switch display and brake pedal load sensing switch display observed on the Techstream change according to
brake pedal operation.
OK:
The Techstream displays ON or OFF according to brake pedal operation.
(e) Slowly depress the brake pedal, and check when the stop light switch and brake pedal load sensing switch turn ON.
OK:
First the stop light switch should turn ON, and then the brake pedal load sensing switch should turn ON.
Result:
D -- CHECK BRAKE PEDAL AND STOP LIGHT SWITCH INSTALLATION
C -- INSPECT SKID CONTROL ECU (FSW+ TERMINAL)
B -- INSPECT SKID CONTROL ECU (STP1 TERMINAL)
A -- Continue to next step.
3. READ VALUE USING TECHSTREAM (MASTER CYLINDER PRESSURE SENSOR)
(a) Select the Data List on the Techstream See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Data List / Active Test.
ABS/VSC/TRAC
(b) Check that the brake fluid pressure value of the master cylinder pressure sensor observed on the Techstream changes when the brake
pedal is depressed.
OK:
When the pedal is depressed, voltage displayed on the Techstream increases.
NG -- REPLACE BRAKE ACTUATOR ASSEMBLY See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Hydraulic Control Assembly - Antilock Brakes/Service and Repair/Removal
OK -- Continue to next step.
4. PERFORM TEST MODE (SIGNAL CHECK)
(a) Turn the engine switch off.
(b) Perform the sensor check in the Test Mode procedure See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Test Mode Procedure.
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