What Part is This?
Thread Starter
Supreme Member
Joined: Apr 2008
Posts: 2,342
Likes: 24
From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
What Part is This?
I know I'm going to get flamed for this, but I have no idea what these things are and don't know how to find out.
Thread Starter
Supreme Member
Joined: Apr 2008
Posts: 2,342
Likes: 24
From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
Re: What Part is This?
I'm bringing this thread back because I believe my ESC may be going bad.
Is the ignition module and the ESC one in the same or are they two different parts? What is the function of the parts in the picture?
Is the ignition module and the ESC one in the same or are they two different parts? What is the function of the parts in the picture?
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: What Part is This?
The ESC is part of the ignition module. NON ESC (non comp. controlled) have fewer pinouts.
The ignition module itself can be seen as the switching relay that grounds the coil to collapse the field and deliver the secondary voltage to the wires & plugs.
The ignition module itself can be seen as the switching relay that grounds the coil to collapse the field and deliver the secondary voltage to the wires & plugs.
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Joined: Mar 2009
Posts: 3,079
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From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: What Part is This?
Some auto part stores can actually test these, but you may have to search around. I know my local Advance Auto has a module tester, but nobody in the store knows what it is or how its used.....
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Thread Starter
Supreme Member
Joined: Apr 2008
Posts: 2,342
Likes: 24
From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
Re: What Part is This?
Also, I read the esc module is located on the drivers side firewall.
Re: What Part is This?
Correct, the esc module on your car is located behind the brake booster on the firewall. 90-up cars with speed density TPI had the ESC function built into the ECM, but 89-older has it separate on the firewall.
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