CHECK AIR MIX DOOR ACTUATOR.

1) Disconnect the air mix door actuator connector.

2) Connect the battery negative terminal to the following terminals. Measure the resistance between air mix actuator terminals using a tester.

Connector & terminal

(B239) No. 3 — No. 1:

(B239) No. 3 — No. 2:

(B239) No. 3 — No. 5:

(B239) No. 3 — No. 6:

QUESTION

Is the resistance between 80 — 100 Ω?

Yes No

Replace the air mix door actuator.