RSX L4-2.0L (2005)
Compressor Clutch: Testing and Inspection
Non-Trouble Code Procedures
A/C Compressor Clutch Circuit Troubleshooting
NOTE:
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Do not use this troubleshooting procedure if the fans are also inoperative. Refer to the symptom troubleshooting index.
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Before performing symptom troubleshooting, check for powertrain DTCs.
1. Check the No. 1 (30 A) fuse in the under-hood fuse/relay box, and the No. 14 (10 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.
2. Check the engine coolant temperature, the throttle position sensor, and the idle speed (use the HDS PGM-FI data list if possible).
Are 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.
3. 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.
4. Measure the voltage between the No. 2 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.