Air Conditioning Diagnosis

See this page for instructions on how to obtain these values.

Is your "EC" light stuck ON?:

Yes

No

The "EC" button controls switches the air conditioning on and off. If the "EC" button is lit, it means the A/C is switched off.

A/C Sensor Values

Enter the values from each sensor.

Sensor 1 - Inside Temperature:*

Sensor 2 - Outside Temperature:*

Sensor 3 - Left Heater Core Temperature:*

Sensor 4 - Right Heater Core Temperature:*

Sensor 5 - Evaporator Temperature:*

Sensor 6 - Engine Coolant Temperature:*

Sensor 7 - Refrigerant Pressure:*

Sensor 8 - Refrigerant Temperature:*

Error Codes:

Error B1226 - In-car Temperature Sensor Malfunction

Error B1227 - Outside Temperature Sensor Malfunction

Error B1228 - Left Heater Core Temperature Sensor Malfunction

Error B1229 - Right Heater Core Temperature Sensor Malfunction

Error B1230 - Evaporator Temperature Sensor Malfunction

Error B1231 - Engine Coolant Temperature Sensor Malfunction

Error B1232 - Refrigerant Pressure Sensor Malfunction

Error B1233 - Refrigerant Temperature Sensor Malfunction

Error B1234 - Sun Sensor Malfunction

Error B1235 - Emissions Sensor Malfunction

Error B1241 - Refrigerant Low

Error B1416 - Coolant Circulation Pump Malfunction

Error B1417 - Left Duovalve Malfunction

Error B1418 - Right Duovalve Malfunction

Check off each error code that you recorded in part 2. These are helpful to report, but not absolutely necessary.