Siena heater switch

keagan · Nov 29, 2016

Hi Guys ,i am new to this ,just need some help ,my heater ,demister used to work perfectly at all speeds ,a few days ago while on level 4 it just stopped working ..as i was driving over a speed bump it started working again...rather confusing ....then after a while it stopped ,,after a few more bumps it worked..now it no longer works..not even the lighting around the control panel

on rainy days it is really hard to drive ,need urgent help

varesecrazy · Nov 29, 2016

keagan said:
Hi Guys ,i am new to this ,just need some help ,my heater ,demister used to work perfectly at all speeds ,a few days ago while on level 4 it just stopped working ..as i was driving over a speed bump it started working again...rather confusing ....then after a while it stopped ,,after a few more bumps it worked..now it no longer works..not even the lighting around the control panel

on rainy days it is really hard to drive ,need urgent help

Hi, and welcome,

it just sounds like a poor connection , or earth.

easiest way to make a start on a diagnosis / fix is the have the ignition power ON - but no engine.and fan switch on #4

lie upside down in the passengers footwell, and wiggle the wiring looms until the fan runs,
wriggle short sections at a time.. figuring out which part makes the difference.

what year is your Siena..??

I may be able to point to more info,

Charlie

Siena heater switch

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Siena heater switch

keagan

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varesecrazy

Patron member

Similar threads

Siena heater switch

Currently reading: Siena heater switch

keagan

New member

varesecrazy

Patron member

Similar threads

Currently reading:
Siena heater switch