Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

READ VALUE OF TECHSTREAM

Connect Techstream to the DLC3.
Turn the ignition switch ON and turn Techstream ON.

Select the items below in the Data List, and read the value displayed on Techstream.

Air conditioning amplifier

DATA LIST - AIR CONDITIONING AMPLIFIER

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
Air Mix Servo Targ Pulse (D)	Driver side air mix servo motor target pulse / Min.: 0, Max.: 255	Customized value displayed	-

OK:

The display is as specified in the normal condition column.

Result

RESULT REFERENCE

Result	Proceed to
NG	A
OK (Checking from PROBLEM SYMPTOMS TABLE)	B
OK (Checking from DTC)	C

B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C: REPLACE AIR CONDITIONING AMPLIFIER

A: Go to next step

REPLACE AIR MIX CONTROL SERVO MOTOR
HINT:

Since the servo motor cannot be tested when it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal.

OK:

Same problem does not occur.

NG: REPAIR OR REPLACE AIR CONDITIONING HARNESS

OK: SYSTEM IS OK