Climate Control Symptom Troubleshooting

Symptom	Diagnostic procedure	Also check for
The blower motor does not run immediately even th ough the engine is fully warmed up NOTE: The temperature control dial must be set between 18°C (64°F) and 32°C (90°F)	ECT Sensor Circuit Troubleshooting	Cleanliness and tightness of all connectors
Both heater and A/C do not work	Climate Control Power and Ground Circuits Troubleshooting	Blown fuse No. 22 (7.5 A) 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 with the A/C on)	Condenser Fan Circuit Troubleshooting	Blown fuse No. 11 (30A) in the under-hood fuse/relay box, and No. 22 (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	Radiator and Condenser Fans Common Circuit Troubleshooting	Blown fuse No. 10 (20A) and No. in the under-hood fuse/relay box, and No. 11 (30A) in the under-dash fuse/relay box Poor ground at G301 Cleanliness and tightness of all connectors
Compressor clutch does not engage	Compressor Clutch Circuit Troubleshooting	Blown fuse No. 11 (30A) in the under-hood fuse/relay box, and No. 22 (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)	A/C Pressure Switch Circuit Troubleshooting	Cleanliness and tightness of all connectors