the degree light comes on then it starts flashing and my heat goes to cold

1998 PONTIAC BONNEVILLE
14,000 MILES
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CDENGLER
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  • 2 POSTS
if it is on 90 it stays on for about 1 min then it starts flashing then no heat only cold
Jan 16, 2012 at 5:46 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Have the HVAC control module checked-
Jan 16, 2012 at 5:50 PM
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CDENGLER
  • MEMBER
  • 2 POSTS
where is the hvac module at?
Jan 16, 2012 at 6:10 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Its on the right side of the dash-also scan the computer for code/s
Jan 16, 2012 at 7:02 PM
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