Brake control

Problem symptoms table

~1min read

If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.

NOTICE: When replacing the brake actuator assembly, sensor, etc., turn the ignition switch off.

HINT: Inspect the fuse and relay before investigating the suspected areas as shown in the table below. Inspect each malfunction circuit in numerical order for the corresponding symptom.

Anti-lock brake system:

Anti-lock brake system

Terminals of ecu

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.