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Heater fan keeps running even after your 1997 Pontiac transport minivan is shut off how do i fix this problem?
Wiki User
∙ 16y ago
The blower motor gets its power through a relay, and it is not unheard of for contacts of relays to stick together after they are de-energized. As well the (BCM) Body Control Module receives its blower operation signals via the heater control switches, and it energizes that relay. There are so many might be's. There are so many relays and modules in these newer vehicles that it takes an active mind to keep them separated as to which does what. Since the blower continues to run, and the blower relay contacts have an unswitched electrical connection straight from the fuse box, you might have a sticking relay. The heater relay is in the engine compartment fuse box, near the battery and washer fluid container. Something funny that I have done a few times, is that I thought the heater fan was running, but it was actually the engine cooling fans that were running. They are meant to run as long as the engine heat calls for it, Ignition on or not.
Wiki User
∙ 16y ago
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How do you check a power?
I HAVE POWER SEAT PROBLEM ON 1997 Pontiac TRANSPORT MINIVAN. I MANAGED TO ISOLATE THE PROBLEM TO THE GROUND SYSTEM BY UNPLUGGING THE POWER WIRE UNDER THE SEAT AND RUNNING JUMPER WIRES DIRECT TO THE SEAT PLUG FROM THE BATTERY. THE SEAT MOTORS FUNCTIONED PROPERLY WHEN "JUMP" CONNECTED IN THIS MANNER. HOWEVER I HAVE NOT YET BEEN ABLE TO LOCATE THE GROUNDING POINT FOR THIS PORTION OF THE SEAT WIRING HARNESS. I AM LOOKING FOR HELP WITH THIS PROBLEM. Paul PPinner@juno.com
How do you check a power seat?
I HAVE POWER SEAT PROBLEM ON 1997 PONTIAC TRANSPORT MINIVAN. I MANAGED TO ISOLATE THE PROBLEM TO THE GROUND SYSTEM BY UNPLUGGING THE POWER WIRE UNDER THE SEAT AND RUNNING JUMPER WIRES DIRECT TO THE SEAT PLUG FROM THE BATTERY. THE SEAT MOTORS FUNCTIONED PROPERLY WHEN "JUMP" CONNECTED IN THIS MANNER. HOWEVER I HAVE NOT YET BEEN ABLE TO LOCATE THE GROUNDING POINT FOR THIS PORTION OF THE SEAT WIRING HARNESS. I AM LOOKING FOR HELP WITH THIS PROBLEM. Paul PPinner@juno.com
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