Question about 1997 Cadillac Catera

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Need to know location of heater control relay in Cadillac Catera

Heater control unit and radio are not powered.

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  • James Tepfenhart
    James Tepfenhart May 11, 2010


    have you checked your fuse box yet? carefull find out if you have more than one fuse box. Some have up to and more than 3 fuse box's. Most have 2 now and days. One in the car, in the dash and one under the hood.

    Let me know.


  • Martin Schaible Sep 13, 2012

    All Fuses Are Ok The Ligths Come On In The Swithes But On Heat In the Seats Front Ane Rear Seats.



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  • 31 Answers

Most likely the K134 multifunction relay. Not a major expense to fix.

Posted on Aug 28, 2009


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Hi there:The fuse block is located below the steering wheel on the driver side, there several fuses refer at A/C system (according with the Manual).

I suggest to check next positions:- 10 for Body Control Module (BCM), Heater Water Auxiliary Pump, Fan Control Relays, Auxiliary Water Pump Relay- 11 for Heater and A/C Control, RH and LH Outside Rearview Mirrors- 12 for Hazard Warning Switch, Instrument Cluster, Data Link Connector (DLC), Stoplamp Switch, Gage Cluster, Heater and A/C Control.- 13 for Remote Control Outside Rearview Mirror Switch, A/C Compressor Relay, Coolant Fan Test Connector, A/C Load Switch- 14 for Cellular Telephone, RH and LH Windshield Washer Nozzles, Driver and Passenger Heated Seat Switch, Heater and A/C Control, Heated Outside Rearview Mirror and Rear Window Defogger Relay- 26 for Headlamp Switch, RH and LH Front Sidemarker Lamp, Middle Taillamp, RH and LH Rear License Plate Lamp, Radio, Automatic Transmission Control Indicator, Heater and A/C Control- 33 for Blower Controller, A/C Compressor Relay
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Hope this helps; also keep in mind that your feedback is important and I will appreciate your time and consideration if you leave some testimonial comment about this answer.
Thank you for using FixYa, have a nice day.

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1 Answer

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