Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

SYMPTOM SUSPECTED AREA SEE
PAGE
Stop light switch circuit
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 sensor DTC check
cannot be done
Check for DTCs again and make sure that the normal system code is output.
TC and CG terminal circuit
If the symptoms still occur even after the above circuit in the suspected area
has been inspected and proved to be normal, replace the skid control ECU
(brake actuator assembly).
ABS warning light
abnormal (Remains on)
ABS warning light circuit
Skid control ECU (brake actuator assembly)
ABS warning light
abnormal (Does not
come on)
ABS warning light circuit
Skid control ECU (brake actuator assembly)
Brake warning light
abnormal (Remains on)
Brake warning light circuit
Skid control ECU (brake actuator assembly)
Brake warning light
abnormal (Does not
come on)
Brake warning light circuit
Skid control ECU (brake actuator assembly)
VSC and/or TRAC does
not operate
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)
Check the hydraulic circuit for leaks. -
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)
Yaw rate and acceleration sensor (airbag sensor assembly) circuit (zero point
malfunction)
Yaw rate and acceleration sensor (airbag sensor assembly) circuit (power
supply malfunction)
Acceleration sensor (airbag sensor assembly) circuit (comparison malfunction)
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