Air conditioning

Dtc check / clear

~1min read

1. DTC CHECK (SENSOR CHECK)

DTC CHECK (SENSOR CHECK)

(a) After the indicator check is completed, the system enters the DTC check mode automatically.

(b) Read the codes displayed on the panel. Refer to the list of codes (See page AC-19) when reading the codes. (Trouble codes are output at the temperature display.)

DTC CHECK (SENSOR CHECK)

(c) If the slower display is desired, press the DEF switch and change it to the step operation. Each time the DEF switch is pressed, the display changes by 1 step.

2. CLEARING DTC

CLEARING DTC

(a) To clear diagnostic trouble codes, there are 2 ways.

(1) During sensor check, press the "DEF" switch and "A/C" switch at the same time.

(2) Remove the ECU-B fuse in the engine room junction block for 20 seconds or longer to clear the DTC memory.

Test yourself

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