Re: Diagnostic port location Mercruiser 5.0 MPI
Ayuh,... Look inside the steel box mounted to the portside manifold...
His engine is to new to have the "steel box".
2004 Mercruiser 5.0 SN OW003759 with Bravo 3 SN OW108118.
Newbie bought the Rinda Technologies diagnostic tool. All excited to use it. Cannot find the port to plug it in. I looked through both manuals (Engine and diagnostic) and they just have wiring diagrams, which are not helping me. I stared at the engine for too long. Crawled all around. I gave up.
I know I will feel stupid and possibly blind when I finally find it but oh well, where is it?
Newport Dave had the general idea of what to look for in the second post down.
http://forums.iboats.com/showthread.php?t=284123
The connector may have a white sticker/tag around the wire harness next to the plug that say's depth sounder on it.
The data link connector (DLC) is a 4‑pin circuit for attaching the diagnostic tool to the ECM.
The DLC is located on the port side of the engine next to the oil filter. Before attaching a
diagnostic tool to the engine, verify that the key is off and the pins are clean of corrosion
and debris. Pin A is the 12‑volt ground connected to the engine harness at splice 104. Pins
B and C are data retrieval lines from the ECM. Pin D is the 12‑volt supply to the diagnostic
tool.
IMPORTANT: Diagnostic tools can only receive data with the key on or engine operating.
Diagnostic tools need a minimum of 9.5 volts. If the diagnostic tool does not respond, verify
the connection, verify that the key is on, and check the battery voltage.
A malfunction of the data link connector will not set a fault.
The four wire colors are going to be, Purple, White with Purple, White with Black, & Black.
Good luck with it.
