Re: Idle Air Control? (and 1997 PCM on-off-on-off-on) ...kinda long

From: Jon (jon@dakota-truck.net)
Date: Thu Oct 19 2000 - 10:46:07 EDT


On Thu, 19 Oct 2000, Davidson, Kevin wrote:
[...]
> My shop manual also states that the 1997 model PCM can be
> placed in "self diagnostic" mode, allowing me to cheat and extract
> any trouble codes without a scan tool. The alleged procedure is
> to turn the key ON-OFF-ON-OFF-ON (without starting the engine),
> and it's supposed flash any trouble codes on the engine light. I
> tried this, and my check engine light did NOT flash - but the
> number "12" appeared in my digital odo! I was like "uh, ooookay..".
> I know that a "12" is the generic trouble code indicating that
> the battery has been disconnected at some point (which I had done
> at one point to clear the computer, but the check engine light had
> since come back on).
>
> So, I guess my reasons for writing this is that I have 2 questions:
>
> (1) Any recommendations on the idle problem?
> (2) Anyone have any experience extracting trouble codes from their 97?
>
> As always, any help is appreciated.

  Kevin,

  Although I do not have any personal experience extracting codes from
a '97, I have been told that after the first code is displayed, you
should quickly cycle the key off and on to display the next code, then
cycle again, etc. (See: http://www.dakota-truck.net/codes)

                                              -Jon-

  .---- Jon Steiger ----- jon@dakota-truck.net or jon@twistedbits.net ------.
  | Affiliations: AOPA, DoD, EAA, NMA, NRA, SPA, USUA; Rec & UL Pilot - SEL |
  | '92 Ram 150 4x4 V8, '96 Dakota V8, '96 Intruder 1400, '96 FireFly 447 |
  `------------------------------ http://www.cs.fredonia.edu/~stei0302/ ----'



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