Symptom Chart

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: During diagnosis, a DTC code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for DTC code(s). If DTC code(s) are set, erase them all.

SYMPTOM CHART

Symptom	Inspection procedure
When the A/C is operation, temperature inside the passenger compartment does not decrease (Cool air is not emitted).	Refer to INSPECTION PROCEDURE 1: WHEN THE A/C IS OPERATION, TEMPERATURE INSIDE THE PASSENGER COMPARTMENT DOES NOT DECREASE (COOL AIR IS NOT EMITTED).
Malfunction of the A/C-ECU power supply system.	Refer to INSPECTION PROCEDURE 2: MALFUNCTION OF THE A/C-ECU POWER SUPPLY SYSTEM.
The compressor does not work.	Refer to INSPECTION PROCEDURE 3: THE COMPRESSOR DOES NOT WORK.
Blower fan and motor do not turn.	Refer to INSPECTION PROCEDURE 4: BLOWER FAN AND MOTOR DO NOT TURN.
Blower air amount cannot be changed.	Refer to INSPECTION PROCEDURE 5: BLOWER AIR AMOUNT CANNOT BE CHANGED.
Outside/inside air changeover is not possible.	Refer to INSPECTION PROCEDURE 6: OUTSIDE/INSIDE AIR CHANGEOVER IS NOT POSSIBLE.
A/C outlet air temperature does not increase.	Refer to INSPECTION PROCEDURE 7: A/C OUTLET AIR TEMPERATURE DOES NOT INCREASE
Air outlet vent cannot be changed.	Refer to INSPECTION PROCEDURE 8: AIR OUTLET VENT CANNOT BE CHANGED.
Blower motor power supply system.	Refer to INSPECTION PROCEDURE 9: BLOWER MOTOR POWER SUPPLY SYSTEM.