Chassis A/C

[David Brady]

Before an after a 100 mile drive I checked to see if the compressor
was clutching-up and it wasn't. Does anyone know what kind of
circuit breakers or fuses are in the compressor control path? a
schematic would be very useful. I have a decent set of tools with
me so any suggestions for diagnosing are greatly appreciated.

Thanks again,
David Brady
'02 LXi, Smokey, Va

Gregory OConnor wrote:

>David, does the engine fan clutch up? did you try this with the
>engine running and warm and the interior thermostat set lower than
>interior temp? some systems will not clutch up during startup of the
>vehicle. I have a 92 cummings M14 in a truck that stores codes for
>the ac functions. Having the computer read reveals volumns.
>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady
>wrote:
>
>
>>Folks,
>>
>>My chassis air conditioning isn't working. I haven't
>>found any blown fuses or circuit breakers. The control
>>switch wiring looks okay. If I turn on the key and toggle
>>the dash ac switch I don't see any voltage changes on the
>>wires going to the compressor (in the engine compartment),
>>nor do I hear any relay chatter. The compressor doesn't
>>seem to be engaging. Any ideas on what I can check?
>>
>>Thanks,
>>David Brady
>>'02 LXi, Smokey, Va
>>
>>
>>--
>>No virus found in this outgoing message.
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>>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date:
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>>
>3/1/2006
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--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006