Air Conditioning System (for Automatic Air Conditioning System)

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART
HINT: When the air conditioning system functions properly, DTC B1400/00 is output.

Air Conditioning System

B1411 - B1443:

B1451 - B1499:

*1: If the cabin temperature is approximately -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
*2: If the ambient temperature is approximately -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
*3: If the check is performed in a dark place, DTC B1421/21 (solar sensor circuit abnormal) may be output even though the system is normal.
*4: The A/C amplifier memorizes the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.