Climate Control Symptom Troubleshooting

Symptom	Diagnostic procedure	Also check for
Recirculation control doors do not change between Fresh and Recirculate	Recirculation Control Motor Circuit Troubleshooting	HVAC DTCs Blown fuse No. 10 (7.5A) in the under-dash fuse/relay box Cleanliness and tightness of all connectors
The blower motor does not run immediately even though the engine is fully warmed up NOTE: The temperature control button must be set between 18°C (64°F) and 32°C (90°F)	ECT Sensor Circuit Troubleshooting	Power train DTCs Cleanliness and tightness of all connectors
Blower, heater controls, and A/C do not work	Climate Control Power and Ground Circuit Troubleshooting	HVAC DTCs Blown fuse No. 10 (7.5A) in the under-dash fuse/relay box Poor ground at G402 Cleanliness and tightness of all connectors
Condenser fan does not run at all (but radiator fan runs compressor operates with the A/C on)	Condenser Fan Circuit Troubleshooting	HVAC DTCs Blown fuse No. 11 (30A) in the under-hood fuse/relay box, and No. 10 (7.5A) in the under-dash fuse/relay box Poor ground at G301 Cleanliness and tightness of all connectors
Both fans do not run with the A/C on (but compressor operates with the A/C on)	Radiator and Condenser Fans Common Circuit Troubleshooting	HVAC DTCs Blown fuse No. 10 (30A) and No. 11 (30A) in the under-hood fuse/relay box, and No. 10 (7.5A) in the under-dash fuse/relay box Poor ground at G301 Cleanliness and tightness of all connectors
Compressor clutch does not engage (but both fans run with the A/C on)	Compressor Clutch Circuit Troubleshooting	HVAC DTCs Blown fuse No. 11 (30A) in the under-hood fuse/relay box, and No. 10 (7.5A) in the under-dash fuse/relay box Cleanliness and tightness of all connectors
A/C System does not come on (both fans and compressor do not work); heater is OK	A/C Pressure Switch Circuit Troubleshooting	HVAC DTCs Cleanliness and tightness of all connectors