Toyota Prius 2010 Repair Manual page 105

2. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.
(e) Check the operation by referring to the table below.
Air Conditioner
Tester Display
Air Mix Servo Targ Pulse (D)
OK:
Air temperature changes in accordance with each control range.
NG
INSPECT AIR MIX CONTROL SERVO MOTOR
OK
REPLACE A/C AMPLIFIER
3. INSPECT AIR MIX CONTROL SERVO MOTOR
(a) Replace the air mix control servo motor
HINT:
Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a
new or a known good one and check that the condition returns to normal.
(b) Check for the DTC.
Result:
DTC B1441/41 is output
DTC B1441/41 is not output
B
END (AIR MIX CONTROL SERVO MOTOR WAS DEFECTIVE)
A
4. INSPECT AIR CONDITIONING HARNESS
2010 Toyota Prius
Test Part
Air mix servo motor pulse
.
Result
Control Range
Min.: 0, Max.: 255
Proceed to
A
B
Diagnostic Note
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Repair Manual