Inspection Flow
- CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE INCREASE
- Turn the temperature control dial (driver) clockwise until 32°C (90°F) is displayed.
- Check for hot air at discharge air outlets.
GO TO 2.
- CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
- Turn the temperature control dial (driver) counterclockwise until 16°C (60°F) is displayed.
- Check for cold air at discharge air outlets.
Can a symptom be duplicated?
YES: GO TO 4.
NO: GO TO 3.
- PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to "OPERATIONAL CHECK (FRONT) ".
Can a symptom be duplicated?
YES: Refer to "SYMPTOM TABLE ".
NO: System OK.
- CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
GO TO 5.
- CHECK AIR MIX DOOR OPERATION
Check and verify air mix door mechanism for smooth operation from 16°C (60°F) to 32°C (90°F) in each mode.
OK or NG
OK: GO TO 6.
NG: Repair as necessary.
- PERFORM SELF-DIAGNOSIS
Perform self-diagnosis to check for any codes. Refer to "A/C SYSTEM SELF-DIAGNOSIS FUNCTION ".
Are any self-diagnosis codes present?
YES: Refer to "SELF-DIAGNOSIS CODE CHART ".
NO: GO TO 7.
- CHECK THE AIR MIX DOOR MOTOR PBR CIRCUIT
Perform diagnostic procedure for the air mix door motors. Refer to "DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR (DRIVER) " and "DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR (PASSENGER) ".
OK or NG
OK: GO TO 8.
NG: Repair PBR circuit or replace air mix door motor. Refer to "AIR MIX DOOR MOTOR ".
- RECHECK FOR CODES
Perform self-diagnosis. Refer to "A/C SYSTEM SELF-DIAGNOSIS FUNCTION ".
Are any self-diagnostic codes present?
YES: Refer to "SELF-DIAGNOSIS CODE CHART ".
NO: GO TO 9.
- RECHECK FOR ANY SYMPTOMS
Perform a complete operational check for any symptoms. Refer to "OPERATIONAL CHECK (FRONT) ".
Does another symptom exist?
YES: Refer to "SYMPTOM TABLE ".
NO: Replace front air control. Refer to "FRONT AIR CONTROL ".