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Honda Fit/Jazz - A/C Signal Circuit Troubleshooting
Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.
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Snip from the Manual
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.
IMAGE REPLACED HERE
Is there approx. 5V?
YES - Go to 5.
NO - Go to 12.
5.Turn the ignition switch OFF.
6.Reconnect the A/C pressure switch connector.
7.Turn the ignition switch ON (II).
8.Momentarily connect ECM/PCM connector terminals A24 and E18 with a jumper wire several times.
IMAGE REPLACED HERE
Is there a clicking noise from the A/C compressor clutch?
YES - Go to 9.
NO - Go to 16.
9. Start the