97 Challenger 1800 Beep Codes????

[unixdood]

Karl,
Dont know if you or anyone else here on the forum can answer this but let me try.
97 Challenger 1800. New Engine ports side.

1- Plug in the lanyard. 2 beeps. Start the port engine. engine starts but I get 7 beeps then the engine dies.

2- plug in the lanyard. 2 beeps. Start the stbd engine, starts and runs fine. Start the port engine, starts, then 7 beeps then BOTH engines die.

This can happen anywhere from 2 to 15 times. Then like magic I can start both engines.

I dont know what the 7 beeps mean and there is nothing in the shop or user manual about 7 beeps. I am SURE it is 7 beeps. Any clue?????

Thanks so much! IM FRAZZLED!

 

[masonf24]

my boat does the same thing!!! i found out that if you put in the key and wait a minute then you can start with no problem. sometimes recently i have not even had to do that anymore. i also have an sbt rebuilt engine. is it that one that makes the noise or the other one and have you figured out the prob yet cause now mine wont even start!!!!

 

[masonf24]

exact same boat and exact same problem!!! does anyone have any help on this???

 

[kustomkarl]

Here is all the info on the DESS codes. It is possiable that you are getting a mixed code.
DESS Codes/ Beeps
2 Short beeps …the engine is ready to start
1 Long beep …no communication to MPEM
4 Short beeps… (on Jet Boats) Shifter is in gear
8 Short beeps…defective MPEM
1 Continual beep…engine over heating


Advanced Self- Diagnostic Mode


By pushing the start/stop button 5 times, you’re putting the DESS in advanced diagnostics. When you have successfully done this, you'll hear 1 short, 1 long beep then, put on the lanyard cap. The engines should start if everything is ok.

2 Short beeps means MPEM can’t read the lanyard cap or it has bad magnet. It could be a bad wire connection at the Lanyard switch.
2 Long beeps means wrong lanyard or bad connection of DESS connection
3 beeps signal the wiring harness of the DESS switch are grounded, or a short circuit somewhere.

You may have a bad connection in your wiring harness, from corrosion. Go through your electrical systems connectors and check for corrosion. Clean them with some contact cleaner, then die-electric grease.

To listen to the codes again start from the beginning.

Let me know how you make out, and if this helps.

Karl

 

[masonf24]

i did the advance and the passenger engine tried to start (which is the one i am having problems with) and i just got on long beep and put the cap on it tried to fire up but of course it won't cause that is my problem. the other engine i got one long beep and put the lanyard on and hit the start button and got two short beeps which doesn't make since because that engine starts and runs perfect!!! i am really lost on what can be my problem since the engine just keeps turning and turning but doesn't fire. new starter and fully charged battery!!! please help