Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 D Doc ID: RM000001DX300VX
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster): TEST MODE
PROCEDURE; 2016 MY Tacoma [08/2015 - ]
TEST MODE PROCEDURE
1. TEST MODE PROCEDURE (for Using Techstream)
HINT:
I
f the ignition switch is turned from the ON to the ACC or LOCK position during test mode, DTCs related to
the signal check function will be cleared.
During test mode, the skid control ECU (master cylinder solenoid) records all DTCs related to the signal
check function. By performing the signal check, the codes are cleared if normality is confirmed. The codes
left over are the codes where an abnormality was found.
(a) Turn the ignition switch to off.
(b) Check that the steering wheel is in the straight-ahead position.
(c) for Automatic transmission: Check that the shift lever is in P and apply the parking brake.
for Manual transmission: Check that the shift lever is in neutral and apply the parking brake.
(d) Connect Techstream to the DLC3.
(e) Turn the ignition switch to ON.
(f) Switch the ECU to test mode using Techstream. Enter the following menu items: Chassis / ABS/VSC/TRAC
/ Utility / Signal Check.
(g) Check that the ABS warning light and slip indicator light blink at 0.125 second intervals (0.125 seconds on
and 0.125 seconds off).
HINT:
I
f the ABS warning light and slip indicator light do not blink, inspect the TS and CG terminal circuit, the
ABS warning light circuit and slip indicator light circuit.
TROUBLE AREA SEE PAGE
ABS warning light circuit
Slip indicator light circuit
TS and CG terminal circuit
(h) Start the engine.
2. TEST MODE PROCEDURE (for Using SST Check Wire)
HINT:
After replacing the yaw rate and acceleration sensor (airbag sensor assembly), be sure to clear the zero
point calibration data in the skid control ECU (master cylinder solenoid) and perform zero point calibration.
If the ignition switch is turned from the ON to the ACC or LOCK position during test mode, DTCs relating to
the signal check function will be cleared.
During test mode, the skid control ECU (master cylinder solenoid) records all DTCs relating to the signal
check function. By performing the signal check, the codes are cleared if normality is confirmed. The
remaining codes are those indicating where an abnormality was found.
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