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Blower Fan diagnosis . . . the rest of the story Posted by Mark in Marine [Email]  (#1837) [Profile/Gallery]
(more from Mark in Marine) on Sat, 27 Jul 2019 18:59:27
In Reply to: Help with Blower Fan diagnosis . . ., Mark in Marine [Profile/Gallery]
, Sun, 7 Jul 2019 20:46:36
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I finally got my daughter's car home to fix it, and I discovered the blower was NOT blowing at all. The 'sucker seat' fans turn off/on with the cabin fan control, and the noise plus highway speeds providing "slow air" through the vent had me fooled.
I ran ACC diagnostics by pressing AUTO and RECIRCULATE buttons at the same time, then ran OpCom diagnostics under Body / ACC. No DTC reported for the ACC, so I repeated, and it was negative again. I've used OpCom for ABS diagnostics and general OBDII, but this is first time I tried it for ACC.
When I opened up the cowl and got the fan/motor assembly out, the fan ran great off a spare battery. Blower motor okay - controller must be "it".
All the access is in the footwell on the right side (passenger side in US), behind kick panel and the glove box. The later cars ('05 and up ?) have a different controller and somewhat different cabin filter end cap than earlier cars. I think it's actually a little easier to work on than the earlier ones if you plan your strategy. Pulling the carpet away from the floorboard gives just enough room to cheat the filter BEHIND the TCM (I think that's what it is, please correct if wrong). The fan controller is screwed onto the end plate covering the cabin filter and AC evaporator. I couldn't get the controller connector to release from the housing,but I finally remembered I wasn't reusing the controller, so I cut the upper plastic spring clip(s) on that connector with an X-acto knife. DON'T cut the "hoop" part of the housing into which the connector clips. It helps to have the new part to see how it works.
With a new filter, a new fan, and a new controller my daughter should be okay for a while. I'll save and possibly re-brush the motor as a spare for her sister's car.
Thanks for all the advice and assistance !
Mark in Marine
, Sun, 7 Jul 2019 20:46:36, Sat, 27 Jul 2019 18:59:27 <-- Viewing This Message
, Mon, 8 Jul 2019 06:54:42, Mon, 8 Jul 2019 08:28:34, Tue, 9 Jul 2019 07:04:26, Tue, 9 Jul 2019 10:07:17, Tue, 9 Jul 2019 13:55:15
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