tristanlee85
Seaman Apprentice
- Joined
- May 15, 2011
- Messages
- 32
As the title states, I have an '89 Mariner that I've been battling an issue with the alarm always going off. It's not always a predictable pattern, but I'll base my results from today's start and idle.
When I turn the ignition on, but not crank, it's usually a solid beep. Sometimes it'll stay on for as long as the ignition is on. Other times, like just now, it stays on for 5 - 8 secs then turns off. I don't get the quick 3 beeps to signify everything is ok.
While this is beeping (solid), I disconnect the sensor wires. For the record, both temperature sensors AND the control box are brand new as of 2 weeks ago. The oil level cap is about 4 yrs old. Regardless, disconnecting the individual temp sensors and oil level sender wires does not change the alarm.
I've had a hard time finding a chart of what the different beeps mean. I believe that a solid beep (beeeeeeeeeeeeeeep) is related to overheating/temperature and the fast (beep beep beep beep beep...) is oil-related. However, something else other than those sensors/sender must be triggering this. Is there a water pressure sensor that could trigger it even though it's not overheating? That wouldn't make sense since it's a solid beep before the engine is even running. What about voltage causing the alarm to beep?
My volt meter reads ~12.3v while running. My depth finder is telling me low voltage. Just like my car and WaveRunner, I would expect the voltage to be ~13.8 while running. Could there be a bad rectifier/voltage regulator triggering this alarm? If so, where on this engine would that be located?
When I turn the ignition on, but not crank, it's usually a solid beep. Sometimes it'll stay on for as long as the ignition is on. Other times, like just now, it stays on for 5 - 8 secs then turns off. I don't get the quick 3 beeps to signify everything is ok.
While this is beeping (solid), I disconnect the sensor wires. For the record, both temperature sensors AND the control box are brand new as of 2 weeks ago. The oil level cap is about 4 yrs old. Regardless, disconnecting the individual temp sensors and oil level sender wires does not change the alarm.
I've had a hard time finding a chart of what the different beeps mean. I believe that a solid beep (beeeeeeeeeeeeeeep) is related to overheating/temperature and the fast (beep beep beep beep beep...) is oil-related. However, something else other than those sensors/sender must be triggering this. Is there a water pressure sensor that could trigger it even though it's not overheating? That wouldn't make sense since it's a solid beep before the engine is even running. What about voltage causing the alarm to beep?
My volt meter reads ~12.3v while running. My depth finder is telling me low voltage. Just like my car and WaveRunner, I would expect the voltage to be ~13.8 while running. Could there be a bad rectifier/voltage regulator triggering this alarm? If so, where on this engine would that be located?