Diagnostic Chart For Self-Diagnosis

Diagnostic Chart for Self-Diagnosis

OPERATION

- Without left/right independent air conditioning function (without high grade MFD)






- Without left/right independent air conditioning function (with high grade MFD)






- With left/right independent air conditioning function






1. A/C CONTROL PANEL SELF-DIAGNOSIS
- Without left/right independent air conditioning function (without high grade MFD)









- Without left/right independent air conditioning function (with high grade MFD), with left/right independent air conditioning function






2. SENSOR CHECK TABLE
- Without left/right independent air conditioning function (without high grade MFD)

NOTE:
- When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as having an open circuit. Always check the sunload sensor at a location exposed to direct sunlight.
- Past malfunction will illuminate if four malfunctions or more were detected previously.
- To cancel the past malfunction, perform either of the following procedure: Disconnect the negative battery terminal or press and hold the FRESH/RECIRC switch for 5 seconds or more while performing self-diagnosis step 3 - 7.






- Without left/right independent air conditioning function (with high grade MFD), with left/right independent air conditioning function

NOTE:
- When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as having an open circuit. Always check the sunload sensor at a location exposed to direct sunlight.
- If there are multiple defective sensors, a malfunction is displayed in the sequence of priority (1, 2, 3, etc.). The display changes in the sequence of priority (1, 2, 3, etc.) each time the A/C switch is pressed.
- Past malfunction will illuminate if four malfunctions or more were detected previously.
- To cancel the past malfunction, perform either of the following procedure: Disconnect the negative battery terminal or press and hold the FRESH/RECIRC switch for 5 seconds or more while performing self-diagnosis step 3 - 4.






3. OPERATING MODE TABLE
- Without left/right independent air conditioning function (without high grade MFD)





- Without left/right independent air conditioning function (with high grade MFD), with left/right independent air conditioning function






4. DRIVE SIGNAL CHECK TABLE
- Without left/right independent air conditioning function (without high grade MFD)

NOTE:
- Past malfunction will illuminate if four malfunctions or more were detected previously.
- To cancel the past malfunction, perform either of the following procedure: Disconnect the negative battery terminal or press and hold the FRESH/RECIRC switch for 5 seconds or more while performing self-diagnosis step 3 - 7.






- Without left/right independent air conditioning function (with high grade MFD), with left/right independent air conditioning function

NOTE:
- If there are multiple defective sensors, a malfunction is displayed in the sequence of priority (1, 2, 3, etc.). The display changes in the sequence of priority (1, 2, 3, etc.) each time the A/C switch is pressed.
- Past malfunction will illuminate if four malfunctions or more were detected previously.
- To cancel the past malfunction, perform either of the following procedure: Disconnect the negative battery terminal or press and hold the FRESH/RECIRC switch for 5 seconds or more while performing self-diagnosis step 3 - 4.






5. DIAGNOSTIC PROCEDURE IF A/C CONTROL PANEL SELF DIAGNOSIS FAILS TO OPERATE

NOTE: For the diagnostic procedures, refer to Diagnostics with Phenomenon "Nothing is displayed on the screen. No illumination appears on the indicator." HVAC System (Auto A/C) (Diagnostics)