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Honda Fit/Jazz - Climate Control Power and Ground Circuit Troubleshooting
Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.
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Snip from the Manual
Climate Control Power and Ground Circuit Troubleshooting
1.Check the No. 10 (7.5A) fuse in the under-dash fuse/relay box.Is the fuse OK?
YES - Go to 2.
NO - Replace the fuse, and recheck.n
2.Disconnect climate control unit 28P connector.
3.Turn the ignition switch ON (II).
4.Measure the voltage between the No. 3 terminal of climate control unit 28P connector and body ground.
IMAGE REPLACED HERE
Is there battery voltage?
YES - Go to 5.
NO - Repair open in the wire between the No. 10 fuse in the under-dash fuse/relay box and the climate control unit.n
5.Turn the ignition switch OFF.
6.Check for continuity between the No. 5 terminal of climate control unit 28P connector and body ground.
IMAGE REPLACED HERE
Is there continuity?
YES - Check for loose wires or poor connections at climate control unit 28P connector. If the connections are good, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.n
NO - Check for an open in the wires between the climate control unit and body ground. If the wire is OK, check for poor ground at G402.n
n 5.