1989 Toyota Corolla Cooling fan is on constantly

Tiny
DEVO357
  • MEMBER
  • 1989 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 197,000 MILES
My cooling fan is on right from start up when cold and does not turn off? I also have a check engine light that popped up and I think its related.
Do you
have the same problem?
Yes
No
Friday, August 27th, 2010 AT 10:40 AM

9 Replies

Tiny
BLUELIGHTNIN6
  • EXPERT
Coolant temp. Sensor most likely fault but will want to retrieve the trouble code(s) stored to make sure
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, August 27th, 2010 AT 5:52 PM
Tiny
RASMATAZ
  • MEMBER
Jumper Te-1 to E-1 in the check connector to flash the code/s
Was this
answer
helpful?
Yes
No
Friday, August 27th, 2010 AT 5:57 PM
Tiny
MMPRINCE4000
  • EXPERT
There is a small white round connector under dist. In coolant block, this is fan switch.

Either fan switch is bad or relay is stuck. Check connection to fan switch.

Check fan relay's and "engine main" relay.
Was this
answer
helpful?
Yes
No
Saturday, August 28th, 2010 AT 8:12 AM
Tiny
DEVO357
  • MEMBER
If I forgot to mention this motor has a carburetor
Here are the code I pulled.

22
31
41
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 11:23 AM
Tiny
GEET
  • MEMBER
22 is for coolant temperature sensor
31 is for vacuum sensor
41 is for throttle position sensor
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 11:41 AM
Tiny
DEVO357
  • MEMBER
Hmm I dont see how 41 is TPS the motor has a carburetor.

So what do I need to do to get rid of these codes?
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 2:25 PM
Tiny
MMPRINCE4000
  • EXPERT
Disconnect the battery (-) for 5 minutes to erase codes, if they come back on, then further repair is necessary.
Was this
answer
helpful?
Yes
No
Tuesday, August 31st, 2010 AT 8:22 AM
Tiny
GEET
  • MEMBER
If they come back you have to change the sensor. Its weird you have carburetor and it stores code 41.
Was this
answer
helpful?
Yes
No
Tuesday, August 31st, 2010 AT 12:43 PM
Tiny
MMPRINCE4000
  • EXPERT
It is also possible the ECM is bad, or that some 89's had FI but used a common ECM with a different PROM.
Was this
answer
helpful?
Yes
No
Wednesday, September 1st, 2010 AT 7:25 AM

Please login or register to post a reply.

Related Cooling Fan Stays On Content

VIEW MORE

Recommended Guides