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Honda Fit/Jazz - A/C Signal Circuit Troubleshooting (L15A)

A/C Signal Circuit Troubleshooting

1.Turn the ignition switch OFF.

2.Disconnect the A/C pressure switch connector.

3.Turn the ignition switch ON (II).

4.Measure voltage between ECM/PCM connector terminals A24 and E28.
then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n


15.Momentarily connect the A/C compressor clutch relay 4P connector (into the under-hood fuse/relay box) terminal No. 3 to body ground with a jumper wire several times.
then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n


NO - Repair open in the wire between the ECM/PCM (E28) and the A/C pressure switch.n

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