190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

blower works when ignition on ACC but not when on RUN

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 02-15-2019, 02:24 AM
  #1  
Newbie
Thread Starter
 
markmccaughan's Avatar
 
Join Date: Feb 2019
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
190e 2.3-16
blower works when ignition on ACC but not when on RUN

Weird one for the forum. The blower works fine - so i turn the key on to ACC - blower works ok - all speeds. Then i go to start the car - blower cuts out - when car is running, blower wont work - turn key off - back to ACC - blower cuts in again.
Is the blower wired via the IGN switch other than ACC / Start ?
cheers
Old 02-15-2019, 07:13 PM
  #2  
Out Of Control!!

 
Plutoe's Avatar
 
Join Date: Feb 2011
Location: Tampa
Posts: 14,542
Received 1,019 Likes on 947 Posts
1999 E300TD
IGN turns the voltage access on
Old 02-15-2019, 08:19 PM
  #3  
Newbie
Thread Starter
 
markmccaughan's Avatar
 
Join Date: Feb 2019
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
190e 2.3-16
Originally Posted by Plutoe
IGN turns the voltage access on
Ok cool. So what does that mean ? It's over-voltage ? Any suggestions where to check ?
Old 02-16-2019, 10:55 AM
  #4  
Out Of Control!!

 
Plutoe's Avatar
 
Join Date: Feb 2011
Location: Tampa
Posts: 14,542
Received 1,019 Likes on 947 Posts
1999 E300TD
It means that when the key is in the on position it allows voltage to be accessible throughout the car and that means that voltage is accessible when you turn the AC on---think of the ignition switch as a light switch---what happens when you turn the wall switch on and there is no light----what two things could be faulty?
Old 02-16-2019, 03:23 PM
  #5  
Newbie
Thread Starter
 
markmccaughan's Avatar
 
Join Date: Feb 2019
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
190e 2.3-16
Maybe i wasn't clear
Blower works fine and there is power . All works when the ignition is on accessory position.
when I move to start positon and when engine is running , blower stops. Turn the car off and key back to accessory, blower works again.
So that's my issue .why does the blower work except where .car is running ?
Old 05-11-2022, 06:49 PM
  #6  
Newbie
 
anabel13bermude's Avatar
 
Join Date: May 2022
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Gmc envoy xl
Question have the same issue

Originally Posted by markmccaughan
Maybe i wasn't clear
Blower works fine and there is power . All works when the ignition is on accessory position.
when I move to start positon and when engine is running , blower stops. Turn the car off and key back to accessory, blower works again.
So that's my issue .why does the blower work except where .car is running ?
Question

Did you figure this out , I'm having the same problem with my 03 GMC envoy xl

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: blower works when ignition on ACC but not when on RUN



All times are GMT -4. The time now is 03:55 AM.