# 2007 Suzuki Vitara - Resistor or switch?

**URL:** <https://community.cartalk.com/t/2007-suzuki-vitara-resistor-or-switch/129289>\
**Category:** Maintenance/Repairs\
**Tags:** suzuki\
**Created:** [November 21, 2018, 11:08am UTC](https://community.cartalk.com/t/2007-suzuki-vitara-resistor-or-switch/129289 "2018-11-21T11:08:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![geoff03](https://avatars.discourse-cdn.com/v4/letter/g/3ec8ea/32.png) [@geoff03](https://community.cartalk.com/u/geoff03)\
**Post date:** [November 21, 2018, 11:08am UTC](https://community.cartalk.com/t/2007-suzuki-vitara-resistor-or-switch/129289/1 "2018-11-21T11:08:04Z")

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Heater fan on full blast all the time  
Q. is it the resistor or  
Q is it the switch

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**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\
**Post date:** [November 21, 2018, 2:15pm UTC](https://community.cartalk.com/t/2007-suzuki-vitara-resistor-or-switch/129289/2 "2018-11-21T14:15:31Z")

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If it can’t be turned off it’s the switch.

If it runs only on max speed it’s the resistor.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [November 21, 2018, 5:53pm UTC](https://community.cartalk.com/t/2007-suzuki-vitara-resistor-or-switch/129289/3 "2018-11-21T17:53:12Z")

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It’s the switch.

The resistors are only for the low speeds. On high speed the voltage bypasses the resistors and voltage is applied directly to blower motor by the blower relay.

So that means the switch isn’t causing the blower relay to send the voltage thru the resistors.

Tester