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Old 04-17-2018, 11:53 AM
RoyLuke RoyLuke is offline
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Hi Folks;
I am rededicated to sorting out the cruise control problem.
Checked the VAC pump, inspected hoses, R&R the switch on the steering wheel.
Now I am going to look into the ECU.
It is supposed to be behind the glove box or behind the Pax facia.
Where is it and what does it look like?

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Old 04-17-2018, 12:02 PM
RoyLuke RoyLuke is offline
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Old 04-17-2018, 01:11 PM
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Levi Levi is offline
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Check the projects and tech section assuming you have a DI. It's in the glove box and a little bit of a PITA due to the tight space. I wished I would have done the DII/P38 cc ecu swap years ago. It has worked well for me except I notice I have to set it about at about 5 mph higher than I want it set and sometimes will creep back up to where I originally set it.
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Last edited by Levi; 04-17-2018 at 06:48 PM.
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Old 04-17-2018, 06:44 PM
ezzzzzzz ezzzzzzz is offline
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D1? The controller is behind the glove box just to the left of the ECU and about the size of a pack of cigarettes. It's also black. It's connector is kinda oval shaped. These do go bad but the vacuum switch at the brake pedal is also suspect. I found that lifting and holding on the brake pedal would allow the CC to work but it would fail when I let the pedal go. I have a D2 module fitted with the D1 connector and it works fine. I'll let it go for $50 shipped.
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Old 04-19-2018, 04:07 PM
RoyLuke RoyLuke is offline
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I removed the brake switch, plugged the hose, and jumped the switch wires. Still negative function so I am thinking it is not the Switch (I wish it was).
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Old 04-22-2018, 11:01 PM
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JUKE179r JUKE179r is offline
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Did you install LED brake lights? if so, that is your problem for the CC not working. Not enough resistance to keep the CC circuit engaged.
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