NOTE: Do not use this troubleshooting procedure if the fans are also inoperative with the A/C on. Refer to the symptom troubleshooting index. Before performing symptom troubleshooting, check for powertrain DTCs. Check the No. 9 (20 A) fuse in the under-hood fuse/relay box, and the No. 30 (7.5 A) fuse in the under-dash fuse/relay box. Are the fuses OK?
YES | - | Go to Step 2 .
NO | - | Replace the fuse(s), and recheck.■
1. Check the engine coolant temperature, throttle position, and idle speed (use the HDS PGM-FI data list if possible).
   ECT Sensor | 76−90 °C (80−194 °F)
   TPS | About 0.5 V
   RPM (min −1 ) | More than 650
Is the coolant temperature, throttle position, and idle speed OK?
YES | - | Go to Step 3 .
NO | - | Troubleshoot and repair the cause of the high engine coolant temperature, low idle, or excessively high throttle position sensor reading.■
Remove the A/C compressor clutch relay from the under-hood fuse/relay box, and test it. Is the relay OK?
YES | - | Go to Step 4 .
NO | - | Replace the A/C compressor clutch relay .■
Measure the voltage between the No. 1 terminal of the A/C compressor clutch relay 4P socket and body ground. Is there battery voltage?
YES | - | Go to Step 5 .
NO | - | Replace the under-hood fuse/relay box.■