2005 Volvo Penta 5.7Gi-E Alam wiring.

[What Boat?]

Hello,
Can anyone confirm for me the correct colour of the wire(s) connected to the alarm?
Thanks.

 

[Fun Times]

Are you asking about the engine sensor side? If so this thread might help some as the colors have changed over the years. http://forums.iboats.com/forum/engi...-engines-outdrives/574024-warning-horn-wiring

The horn itself should have red and black wires like seen below as long as you don't have this design, http://www.ebay.com/itm/NEW-Volvo-Penta-Alarm-Panel-Kit-873609-Warning-Lights-/180636559192
Or any of theses, http://www.bing.com/images/search?q...2D23552B3011CA3C298944C6CB9&selectedIndex=0#a

 

[What Boat?]

Hello Fun Times, thank you for directing me to the 'Warning horn wiring' tread, the information was very helpful. As described, the alarm red wire should connect to a tan/black wire. Unfortunately, the one on my boat connects to a yellow/blue.
I suspect that this wire has been replaced in the past because I've located the corresponding tan/black at the ECU connector plug.
Today, I will attempt to establish continuity between the ECU connector terminal (tan/black) and the alarm end of the yellow/blue wire up at the helm.

 

[What Boat?]

Sorry, I made a slight error in my reply above. It should read, ".....the alarm BLACK wire should coone t to a tan/black wire". Not RED.

 

[alldodge]

Here is a wiring diagram I found on THT and the only Yel/Blue wire goes to the Coolant Temp *CT) sensor (right side about middle). While this is not for your exact engine the color codes should be the same.

 

[What Boat?]

The alarm/buzzer was installed and tested OK when check manually. However, there was no continuity between the alarm/buzzer terminal back the ECM (connector J-1, pin #8).

For those of you who are familiar with the Volvo Penta 5.7Gi-E wiring harness (very similar to the one above), I tracked the fault to the main engine control connector (10 pin M/F fully sealed plug). The Tan/Black wire leaving the ECU (connector J-1, pin #8) had become detached from the female #4 pin at the main engine control connector (10 pin M/F fully sealed plug).

I re-established this circuit with a bypass around the #4 M/F pin.

Thanks everyone, your assistance (pics and diagram) were a great help.

 

[vaqua55]

This diagram is very helpful as it might revolt why I am getting an audible alarm from my starboard engine when I cruise above 3200 RPM! I suspect it was my oil pressure switch and I replaced it but it still continues. Next I will have to check continuity and see if there is any wire damage/connections issues creating such alarm. Any other ideas? My engine is 2003 5.7 GXI Volvo Penta, thanks for your assistance

 

[GA_Boater]

This diagram is very helpful as it might revolt why I am getting an audible alarm from my starboard engine when I cruise above 3200 RPM! I suspect it was my oil pressure switch and I replaced it but it still continues. Next I will have to check continuity and see if there is any wire damage/connections issues creating such alarm. Any other ideas? My engine is 2003 5.7 GXI Volvo Penta, thanks for your assistance

Once again - Start your own thread.