Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 C Doc ID: RM000005VB3000X
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster): C1426; Stop Light
Switch OFF Stuck Malfunction; 2016 MY Tacoma [08/2015 - ]
DTC C1426 Stop Light Switch OFF Stuck Malfunction
DESCRIPTION
The skid control ECU (brake actuator assembly) inputs the stop light signal and brake operation condition. When
the brake pedal is depressed and the stop light switch signal is not input, C1426 is output.
DTC
NO.
DETECTION ITEM DTC DETECTION CONDITION TROUBLE AREA
C1426
Stop Light Switch
OFF Stuck
Malfunction
When voltage at terminal +BS is 9.5 V or higher,
vehicle is driven and brake pedal is operated,
stop light switch signal is not input.
Wire harness or
connector
STOP fuse
Stop light switch
assembly
Skid Control ECU
(Brake actuator
assembly)
WIRING DIAGRAM
Refer to DTC C1380 .
INSPECTION PROCEDURE
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store
system information .
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1. CHECK BRAKE PEDAL AND STOP LIGHT SWITCH INSTALLATION
(a) Check the brake pedal height installation .
(b) Check the stop light switch assembly installation .
OK:
The brake pedal height and stop light switch assembly installation are normal.
HINT:
I
f the on/off status of the stop light switch assembly and pressure increase information from the master
cylinder pressure sensor do not match due to an improperly installed brake pedal or stop light switch
cardiagn.com

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