S2000 L4-1997cc 2.0L DOHC (VTEC) MFI (2001)
Compressor Clutch: Testing and Inspection
Compressor Clutch Circuit
Compressor Clutch Circuit Troubleshooting
1. Check the No.58 (20 A) fuse in the main under-hood fuse/relay box, and the No.20 (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.
2. Check the engine coolant temperature, the throttle position sensor, and the idle speed (use the Honda PGM Tester PGM-FI data list if possible).
Is the coolant temperature above normal, the throttle position sensor reading too high, or the idle speed to low?
YES - Troubleshooting repair the cause of the high engine coolant temperature, high throttle position sensor reading, or low idle speed.
NO - Go to step 3.
3. Remove the compressor clutch relay from the main under-hood fuse/relay box, and test it.
Is the relay OK?
YES - Go to step 4.
NO - Replace the compressor clutch relay.
4. Measure the voltage between the No.1 terminal of the compressor clutch relay 4P socket and body ground.
Is there battery voltage?
YES - Go to step 5.
NO - Replace the main under-hood fuse/relay box.
5. Connect the No.1 and No.2 terminals of the compressor clutch relay 4P socket with a jumper wire.
Does the compressor clutch click ?
YES - Go to step 6.
NO - Go to step 14.