DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit: Procedure
WARNING: This page is about a different variant/trim than selected.
- READ VALUE USING TECHSTREAM
- Connect Techstream to the DLC3.
- Turn the ignition switch on (IG) and turn Techstream main switch on.
- Select the items below in the Data List, and read the value displayed on Techstream.DATA LIST / AIR CONDITIONER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Inlet Damper Targ Pulse Air inlet damper target pulse /
Min.: 0, Max.: 255RECIRCULATION: 7 (pulse)
FRESH: 28 (pulse)- OK
The display is as specified in the normal condition column.
Result
Result Proceed to NG A OK (Checking from PROBLEM SYMPTOMS TABLE) B OK (Checking from DTC) C
B → See step 4
C → See step 5
A: Go to next step
- REPLACE AIR INLET 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.
NEXT: Go to next step
- CHECK DTC OUTPUT
- Check for DTC.
OK
DTC B1442/42 is not output.
NG → REPAIR OR REPLACE AIR CONDITIONING HARNESS
OK → END
- Check for DTC.
- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
- REPLACE AIR CONDITIONING AMPLIFIER. Refer to REMOVAL - Step 6