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Honda Fit/Jazz - A/C Compressor Clutch Circuit Troubleshooting (Without ETCS)

Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.

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A/C Compressor Clutch Circuit Troubleshooting

1.Check the No. 11 (30A) fuse in the under-hood fuse/relay box, and the No. 22 (30A) fuse in the under-dash fuse/relay box.

Are the fuses OK?


YES - Go to 2.


NO - Replace the fuse(s), and recheck.n


2.Check the engine coolant temperature (use the Honda PGM Tester PGM-FI data list if possible).

Is the coolant temperature above nomal?


YES - Troubleshoot and repair the cause of the high engine coolant temperature.n


NO - Go to 3.


Remove the compressor clutch relay from the under-hood fuse/relay box, and test it.

Is the relay OK?


YES - Go to 4.


NO - Replace the compressor clutch relay.n


4.Measure the voltage between the No. 2 terminal of the compressor clutch relay 5P socket and body ground.

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Is there battery voltage?


YES - Go to 5.


NO - Replace the under-hood fuse/relay box.n

5.Connect the No. 1 and No. 2 terminals of the compressor clutch relay 5P socket with a jumper wire.

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Does the compressor clutch click ?


YES - Go to 6.


NO - Go to 14.


6.Disconnect the jumper wire.

7.Turn the ignition switch ON (II).

8.Measure the voltage between the No. 5 terminal of the compressor clutch relay 5P socket and body ground.

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Is there battery voltage?


YES - Go to 9.n


NO - Repair open in the wire between the No. 22 fuse in the under-dash fuse/relay box and the compressor clutch relay.n

9.Turn the ignition switch OFF.

10.Reinstall the compressor clutch relay.

11.Make sure the A/C switch is OFF.

12.Turn the ignition switch ON (II).

13.Measure the voltage between the No. 18 terminal of ECM/PCM connector E (31P) and body ground with the ECM/PCM connectors connected.

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Is there battery voltage?


YES - Check for loose wires or poor connections at ECM/PCM connector E (31P). If the connections are good, substitute a known-good ECM/PCM, and recheck. If the symptom/indication goes away, replace the original ECM/PCM.n


NO - Repair open in the wire between the compressor clutch relay and the ECM/PCM.n


14.Disconnect the jumper wire.

15.Disconnect the compressor clutch 1P connector.

16.Check for continuity between the No. 1 terminal of the compressor clutch relay 5P socket and the No. 1 terminal of the compressor clutch 1P connector.

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Is there continuity?


YES - Check the compressor clutch clearance, the thermal protector, and the compressor clutch field coil.n


NO - Repair open in the wire between the compressor clutch relay and the compressor clutch.n

4 .


Honda Fit/Jazz 02-05 Workshop Manual    Back to all Manuals