1997 Mercury 150XL Power Pack wiring-Will not run over 2k RPM-Alarm Beeps rapidly

cutum

Recruit
Joined
May 20, 2015
Messages
1
1997 Mercury 150XL S/N OG571840

Does anyone have a wiring diagram for this engine? I think I have a power pack that has failed. As soon as I fire up the engine, the warning horn rapidly beeps on and off. I?ve checked everything that would cause the alarm including:

Secondary oil float reservoir-checked ok
5volt pulse from oil pump-checked ok
*** Temperature causes a solid tone alarm condition(I think)?


While cruising, engine will not run over 2k RPM.
The only thing I didn?t check is signal from Power Pack to warning module. I understand this could cause the alarm if power pack is faulty. Interestingly, it doesn?t appear to monitor both Power packs? Does it only monitor 1 Power pack? I would like to know the process involved in testing the power packs to ensure proper operation.

Thank you for any input provided!!!

Dale
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,036
check the maxrules website for a wiring diaghram. They are pretty common, so just try to find one for a 6 cylinder ADI ignition, unless you have CDM ignition. Check the CDIElectronics web site for switchbox troubleshooting.
 
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