I purchased a 2009 377 Mag MPI Bravo with DTS. Engine Serial number 1A344800. Trying to figure out if the PCM is shot.
I called Mercruiser tech line, gave them my engine serial number and they gave me the part numbers to purchase the correct Smartcraft harnessing kit to rig my boat with.
After installing the new rigging, I took the boat in to a certified Mercruiser dealer to get them to program the new Smartcraft / DTS harness. They were unable to complete the set up and could not get the engine to start.
Brought the boat back home and found that the only way the engine will start after powering the key to the on position is to remove the start relay and jumper between the red and the yellow/red stripe wire momentarily to crank the engine. This starts the engine and it will run until the key is turned off.
I have swapped out the relay to make sure it was ok. I have verified that the shift position switch is working.
It would seem that the PCM is not sending a start signal to the start relay when the key is put in to the start position but I can not figure out why.
I'm stumped.
Anyone have any idea's?
I called Mercruiser tech line, gave them my engine serial number and they gave me the part numbers to purchase the correct Smartcraft harnessing kit to rig my boat with.
After installing the new rigging, I took the boat in to a certified Mercruiser dealer to get them to program the new Smartcraft / DTS harness. They were unable to complete the set up and could not get the engine to start.
Brought the boat back home and found that the only way the engine will start after powering the key to the on position is to remove the start relay and jumper between the red and the yellow/red stripe wire momentarily to crank the engine. This starts the engine and it will run until the key is turned off.
I have swapped out the relay to make sure it was ok. I have verified that the shift position switch is working.
It would seem that the PCM is not sending a start signal to the start relay when the key is put in to the start position but I can not figure out why.
I'm stumped.
Anyone have any idea's?