Air Conditioning System

DTC Chart
- If a malfunction code is displayed during the diagnostic trouble code check (sensor check), check the circuit listed for that code in the table above.

HINT:
*1 If the room temp. is approx. -20°C (-4°F) or lower, trouble code 11 may be output even though the system is normal.
*2 If the ambient temperature is approx. -50°C (-58°F) or lower, a malfunction code may be output even though the system is normal.
*3 If the check is being performed in a dark place, diagnostic trouble code 21 (solar sensor circuit abnormal) could be displayed. In this case, perform diagnostic trouble code check again while shining a light, such as an inspection light, on the solar sensor. If trouble code 21 is still displayed, there could be trouble in the solar sensor circuit.
*4 Compressor lock (DTC 22) is indicated only for a current occuring malfunction.
To confirm diagnostic trouble code 22, perform the following steps.
(1) With the engine ON, enter the diagnostic trouble code check mode.
(2) Press the RECIRC switch to enter actuator check mode, and set the operation to Step No.3.
(3) Press the AUTO switch to return to diagnostic trouble code check mode.
(4) The diagnostic trouble code is displayed after approx.3 secs.
*5 The ECU memorizes the DTC of the respective malfunction it has occurred for the period of the time indicated in the brackets.