Testing DIS module

[FRDSHOGRL93X3]

Can't seem to find it through searching, but need to know how to test a DIS module. I always went by the car runs/no CE light its good theory but I guess thats not a good measure.......

 

[TYSHO]

If you are experiencing some problems, easily swap a DIS module from one of you other SHO's.

 

[jaded93atx]

You could also remove the DIS and have it tested for free at Autozone or Murrays, theres probably other parts stores that also can perform the test but I'm unsure of which ones. Just make sure to re apply the heatsink compound when you reinstall it.

 

[FRDSHOGRL93X3]

HHmmm. Autozone says the one I have is no good yet it starts the car and no CE light?

 

[Ace]

You could also remove the DIS and have it tested for free at Autozone or Murrays, theres probably other parts stores that also can perform the test but I'm unsure of which ones. Just make sure to re apply the heatsink compound when you reinstall it.

but remember these are the same nitwits that can run a free computer check on your car but cant explain what the codes mean....

 

[SHOZ123]

Here ae the DIS pinouts FWIW.

Firewall side...

Radiator side....

DIS ground points....

 

[SHOZ123]

More ignition pics....

 

[jaded93atx]

I guess anyone can screw anything up at anytime, but when I had mine tested it seemed pretty idiot proof...plug both sides of the module into a harness, plug the other side into the diagnostic computer enter the appropiate corresponding code for our DIS and push the start button. It runs a series of tests and a green light indicated that the module was ok, which in my case pointed to the cps being responsible for my no spark and no start.I swapped it out and was rolling in the sho again.
On a side note the 3 Autozones I tried were unable to locate the appropiate shop manual page for the procedure so I went to a Murray's and had no problems. If your looking to self diagnose the DIS and have a love for learning diagnostic test then RangerJ has a complete "how to" using a multimeter.
Also I'm curious if your car runs ok why are you focusing on the dis anyways, if it was broke you would have no spark and your car would not run...period.

 

[FRDSHOGRL93X3]

I gave it to someone and they said it failed test at autozone? Worked fine for me?

 

[FRDSHOGRL93X3]

Nevermind... Tho for the record Autozone sucks!!!
Here's the reply:

Hi,
>
>I deeply apologize for any undue stress my last e-mail caused you.
>My boyfriend decided to try the module regardless of what the test
>said. You're right, it works!! Again, I am SO deeply sorry for
>the stress. Neither one of us could believe that a bad part was
>sent. Thank you for all you have done. It is deeply appreciated.
>
I love happy endings.........

 

[rangerj]

Having the DIS module tested by itself is OK and I do not discourage anyone from doing that. The DIS "system" tests I describe is intended to test the "system" (Distributoless Ignition System) from the HCU THROUGH the DIS module. You can check the CPS, CID, Coil power, etc. from the computer through the DIS to the individual component. It also tells you if you have a circuit or a connection problem. A DIGITAL multi-meter and a LED test light are all that are needed. The LED test light is not an absolute necessity but makes the CID test easier to do.

DO NOT use an analog (swing needle) meter, nor an INCANDESCENT light (or coil) tester on electronic components. These are OK for testing 12 volt components, such as light bulb circuits or power window motors, etc, but are not good for electronic components.

When checking for electronic component problems check all connections first. Make sure the connections are clean, free of corrosion, and snugly connected. Check for any bent, broken, or pushed out pins. Look at the wire connection to the pins. Again, look for corrosion or broken wires.
Once you are sure you have good connections, proceed to test the components. Remember, the components send signals to and/or get signals from the computer. Any breakdown or interference in this "communication" will cause problems. So, connections, connections, connections!

Note: the DIS module is grounded to the crossover tube by two of its screws (the botton two IIR). Make sure these are clean. Also the crossover tube is grounded by the two screws (bolts) that hold it to the heads. Make sure these are making good contact to the crossover tube, especially under the head of the bolts. It is a good idea to check all ground connections.

 

[LOCO_SHO]

ok so with my remote start which wire can i grab for a tach reference signal this is all jibberish to me..

 

[SHOZ123]

You want the PIP signal. But there is a service connector for the tach. it is the Gray/Orange or Tan/Yellow wire near the PCM wiring.

 

[rangerj]

Try the search feature for the DIS test under my signature one more time. If you still cannot find it I'll post the tests again.