OBD I codes

160,000 MILES • 6 CYL • FWD • AUTOMATIC
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MICAHNETT
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  • 5 POSTS
How do I fix OBDI fault 12 (memory to controller has been cleared within 50-100 engine starts) on '95 caravan?
Jan 27, 2011 at 12:05 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
12 Battery input to PCM disconnected during last 50 key starts. Check and test the battery feed circuit pin no.3 on the computer
Jan 27, 2011 at 12:24 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
12 just means the ignition switch was turned off. It's only a problem if it comes back during a test drive and you read the codes before turning the ignition switch off. Every car has this code but some models don't bother to display it.

(Hi rasmataz. Happy Thursay!)

caradiodoc
Jan 27, 2011 at 1:17 PM
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MICAHNETT
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  • 5 POSTS
thank you both for your info
Jan 27, 2011 at 1:23 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Hi caradiodoc, Happy Thursday to you my friend -I'm a day head of you-Friday PM 1500hrs here-I'm on the international dateline-

Later Bro.
Jan 27, 2011 at 9:34 PM
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