Air Conditioning System

AIR CONDITIONING: AIR CONDITIONING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

If a trouble code is displayed during the DTC check (sensor check), check the circuit listed for that code in the table below (proceed to the page given for that circuit).

AIR CONDITIONING SYSTEM









HINT
* *1: If the cabin temperature is approx. -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 approx. -52.9°C (-63.22°F) or lower, a malfunction code may be output even though the system is normal.
* *3: If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal) could be displayed.
* *4: Compressor lock (DTC B1422/22) is indicated only for a current occurring malfunction.
To confirm DTC B1422/22, perform the following steps:
(1) With engine ON, enter the DTC check mode.
(2) Press the R/F (Recirculation / Fresh) switch to enter actuator check mode, and set the operation to Step No. 3.
(3) Press the AUTO switch to return to DTC check mode.
(4) The DTC is displayed after approx. 3 sec.
* *5: Even though the system is in good condition, DTC is output when the seat sensor temperature senses -40°C (-40°F) and over 99°C (210.2°F).
* *6: The A/C amplifier memorizes the DTC of the respective malfunction that has occurred for a period of the time indicated in the brackets.