Toyota Prius 2010 Repair Manual page 109

(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 Inlet Damper Targ Pulse
OK:
Recirculation damper position changes in accordance with each control range.
NG
INSPECT AIR INLET CONTROL SERVO MOTOR
OK
REPLACE A/C AMPLIFIER
3. INSPECT AIR INLET CONTROL SERVO MOTOR
(a) Replace the air inlet 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 B1442/42 is output
DTC B1442/42 is not output
B
END (AIR INLET CONTROL SERVO MOTOR WAS DEFECTIVE)
A
4. INSPECT AIR CONDITIONING HARNESS
(a) Replace the air conditioning harness
2010 Toyota Prius
Test Part
Air inlet damper target pulse
.
Result
.
Control Range
Min.: 0, Max.: 255
Proceed to
A
B
Diagnostic Note
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Repair Manual