1989 FORD RANGER WERE IS THE PCM RELAY LOCATED

  • Tiny
  • ronyogi69
  • 1989 Ford Ranger

Engine Mechanical problem
1989 Ford Ranger 4 cyl Two Wheel Drive Manual

were is the pcm located

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Monday, August 2nd, 2010 AT 8:02 PM

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  • Tiny
  • bluelightnin6
  • Expert
  • 17,061 posts

ECA is used on this vehicle and is behind right kick panel. ECA relay is on right front fender panel, on relay block.

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Monday, August 2nd, 2010 AT 8:05 PM
  • Tiny
  • ronyogi69
  • Member

Is it near the power distribution box

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Monday, August 2nd, 2010 AT 9:07 PM
  • Tiny
  • ronyogi69
  • Member

Is it located near the power distribution box

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Monday, August 2nd, 2010 AT 9:23 PM
  • Tiny
  • bluelightnin6
  • Expert
  • 17,061 posts

The ECM will be in 1 of 3 places: It will be behind the kick panel in the driver's foot well, in the firewall under the brake booster or on the firewall in the pasenger side footwell just above the trans hump.

On the "Foreign car" Fords, the ECM is behind the kick panel in the passenger side footwell. I don't think the Mazda B-truck and the Ranger were close enough in 1989 for the Ranger to be a "Foreign car" Ford and the ECM location was identical for the Explorer, Aerostar and Ranger starting in 1990, so I'm betting you'll find the ECM on the firewall in the passenger side footwell. You'll know you have the ECM when you find the 104-pin connector held on with a 10mm bolt.

Hope that helps!

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Monday, August 2nd, 2010 AT 9:26 PM
  • Tiny
  • ronyogi69
  • Member

Can the ecm cause one of the coil packs not to put out a spark

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Monday, August 2nd, 2010 AT 10:32 PM
  • Tiny
  • bluelightnin6
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Yes it's possible because the ECM does send signals to the coil packs

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Monday, August 2nd, 2010 AT 10:39 PM
  • Tiny
  • ronyogi69
  • Member

Will the ecm be a big round thing with a bolt in the middle of it holding it on

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Monday, August 2nd, 2010 AT 10:47 PM
  • Tiny
  • bluelightnin6
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http://www.2carpros.com/forum/automotive_pictures/261618_4_20.jpg

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Monday, August 2nd, 2010 AT 10:53 PM
  • Tiny
  • ronyogi69
  • Member

I don't see any thing under the hood that looks like that but I do have some thing that looks like that under the dash on the drivers side that looks like that could that be it

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Monday, August 2nd, 2010 AT 11:03 PM
  • Tiny
  • bluelightnin6
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Shouldn't be underhood, should be in cab of truck, you have found it most likely. Is the electrical connector to it pretty wide? Should have around 103 little pins.

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Monday, August 2nd, 2010 AT 11:05 PM

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