Thank you. I will try that. Sent from my iPhone
> On May 14, 2023, at 11:29 AM, Kaleb Striplin via Mercedes > <mercedes@okiebenz.com> wrote: > > It appears pin 31 is ground, connect a test wire from there direct to ground > and see what happens. > > https://forums.mbclub.co.uk/threads/w124-continuous-voltage-to-glow-plugs-ignition-vacuum-connection.258241/ > > Sent from my iPhone > >> On May 14, 2023, at 10:18 AM, Dimitri Seretakis <dsereta...@yahoo.com> wrote: >> >> It’s a brand new relay. I bought it at the stealership! Maybe it’s a ground >> issue? Where is this thing grounded? >> >> Sent from my iPhone >> >>>> On May 14, 2023, at 11:14 AM, Kaleb Striplin via Mercedes >>>> <mercedes@okiebenz.com> wrote: >>> >>> There is no ecm that controls anything with the glow plugs. If the relay >>> gets power, but no power is coming out of the pins to the glow plug >>> harness, then the relay is bad. >>> >>> Sent from my iPhone >>> >>>>> On May 14, 2023, at 9:02 AM, Dimitri Seretakis via Mercedes >>>>> <mercedes@okiebenz.com> wrote: >>>> >>>> So I’m thinking that maybe the ground to the relay is the problem or that >>>> there is an ecm issue. The relay gets power but doesn’t put out power to >>>> the glow plugs. But where is the relay grounded? The three connections are >>>> the power lug to the battery, the harness to the glow plugs and the >>>> harness going to the ignition. The harness going to the ignition has 5 >>>> wires. One gets power when ignition is turn to on position. I don’t know >>>> what the other 4 do. Could one be a ground? I assume some go to an ecm. >>>> Could a bad ecm be telling the gp relay not to send a signal to the plugs? >>>> I’m about ready to give up and send this car to a mechanic! >>>> >>>> Sent from my iPhone >>>> >>>>>> On May 14, 2023, at 12:34 AM, Dimitri Seretakis <dsereta...@yahoo.com> >>>>>> wrote: >>>>> >>>>> Yes my car has three connections as you describe. Big plug to glow plug, >>>>> cable to battery and small plug. Small plug corresponds to 5 pins on >>>>> relay. One connection on the plug is live only when ignition is turned on >>>>> so I presume that is the ignition on. >>>>> >>>>> Sent from my iPhone >>>>> >>>>>>> On May 13, 2023, at 12:37 PM, Jim Cathey <jim.cathey...@gmail.com> >>>>>>> wrote: >>>>>> >>>>>> Used to be there were THREE connections to the relay: >>>>>> A big plug that went to the glow plugs, a big cable that >>>>>> went to the battery, and a small plug that was command >>>>>> and control. The first two are Duh!, but they all need to >>>>>> be working correctly, or you don't get a good start. >>>>>> >>>>>> IIRC there was an ignition-on signal, a start signal, and >>>>>> a dash lamp signal. Ignition-on started the GP timer, >>>>>> start-release stopped the glow plugs, and the light was >>>>>> the light. >>>>>> >>>>>> Not sure exactly what your car has. Check the car schematic. >>>>>> >>>>>> -- Jim >>>>>> >>>> >>>> >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>> >>> >>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
