Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

OK
2. READ VALUE USING TECHSTREAM (STOP LIGHT SW AND MASTER CYLINDER SENSOR)
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
ABS/VSC/TRAC
TESTER
DISPLAY
MEASUREMENT ITEM/RANGE NORMAL CONDITION DIAGNOSTIC NOTE
Stop Light SW Stop light switch/ ON or OFF
ON: Brake pedal
depressed
OFF: Brake pedal
released
-
Master
Cylinder
Sensor
Master cylinder pressure sensor
reading/ Min.: 0 V, Max.: 5 V
0.3 to 0.9 V: When brake
pedal is released
Reading increases when brake
pedal is depressed.
Standard:
Master cylinder pressure sensor reading is 0.86 V or less at the instant the stop light switch changes from
off to on.
NG
GO TO STEP 4
3. RECONFIRM DTC
(a) Clear the DTCs .
(b) Start the engine.
(c) Drive the vehicle at a speed of 40 km/h (25 mph) or more and perform a braking test (decelerate the
vehicle by depressing the brake pedal).
(d) Check if the same DTC is output .
Result
RESULT PROCEED TO
DTC C1422 is not output A
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