AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) DIAGNOSTIC TROUBLE CODE CHART

Tip:

If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
*1: The air conditioning amplifier stores the DTC of the respective malfunction that has been detected for the period of time indicated in parentheses.
*2: For vehicles without an air conditioning system, DTCs B1413 and B1423 are always output and DTC B1451 may be output. As this is not a malfunction, troubleshooting is not necessary.

Table 1. Air Conditioning System
DTC Code	Detection Item	Memory*1	Diagnostic Note	See page
B1412	Ambient Temperature Sensor Circuit	Stored (4 seconds or more)	If the ambient temperature is approx. -52.9°C (-63.22°F) or less, DTC B1412/12 may be stored even though the system is normal.	Click here
B1413*2	Evaporator Temperature Sensor Circuit	Stored (4 seconds or more)	-	Click here
B1423*2	Pressure Sensor Circuit	Stored (4 seconds or more)	-	Click here
B1451*2	Compressor Solenoid Circuit	Stored (30 seconds or more)	-	Click here
B14B8	Refrigerant Shortage	Stored (15 seconds or more)	-	Click here
U0100	Lost Communication with ECM	-	-	Click here
U0131	Lost Communication with Power Steering Control Module	-	-	Click here
U0142	Lost Communication with Main Body ECU	-	-	Click here
U0155	Lost Communication with Combination Meter	-	-	Click here