Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 T Doc ID: RM000005V9Q000X
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster): PROBLEM
SYMPTOMS TABLE; 2016 MY Tacoma [08/2015 - ]
PROBLEM SYMPTOMS TABLE
NOTICE:
When replacing the skid control ECU (brake actuator assembly), sensor, etc., turn the ignition switch off.
HINT:
U
se the table below to help determine the cause of problem symptoms. If multiple suspected areas are
listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area"
column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Vehicle Stability Control System
SYMPTOM SUSPECTED AREA SEE
PAGE
ABS, BA and/or EBD
does not operate
efficiently
Check for DTCs again and make sure that the normal system code is output.
Power source circuit (low power supply voltage malfunction)
Power source circuit (high power supply voltage malfunction)
Front speed sensor circuit (comparison malfunction)
Front speed sensor circuit (open or short malfunction)
Front speed sensor circuit (output malfunction)
Rear speed sensor circuit (comparison malfunction)
Rear speed sensor circuit (open or short malfunction)
Rear speed sensor circuit (output malfunction)
Check the skid control ECU (brake actuator assembly) with the Techstream.
(Check skid control ECU (brake actuator assembly) operation using the Active
Test function.) If abnormal, check the hydraulic circuit for leaks.
If the symptoms still occur even after the above circuits in suspected areas
have been inspected and proved to be normal, replace the skid control ECU
(brake actuator assembly).
ABS, BA and/or EBD
does not operate
efficiently
Check for DTCs again and make sure that the normal system code is output.
Front speed sensor circuit (comparison malfunction)
Front speed sensor circuit (open or short malfunction)
Front speed sensor circuit (output malfunction)
Rear speed sensor circuit (comparison malfunction)
Rear speed sensor circuit (open or short malfunction)
Rear speed sensor circuit (output malfunction)
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