2005 E2. Drifted up to stop sign and total shut down as drifting. No display/no power. Got it home and got a partial charge on it. Here what I’ve done.
Batteries…1/13.42…2/13.11…3/13.11…4/13.01….5/13.11 and 6/13.11….maybe partial charge differences.
Fuse 9…good
Fuse 13…good
Jumped ignition key…no difference
PSDM + to - [bottom front pins ]…78.9
Contractor…across pins…78.8
Contractor white wire to PSDM neg….no reading
Replaced contactor and got a very brief display then immediate nothing. With key on and accelerator pushed…no contactor closing.
Suggestions appreciated
The contactor brief display was with key off/accelerator not depressed
It sounds like your DC converter lost power output.
You checked fuses on the panel, but did you probe for V? Do you have 12v?
→ What do you get on S6 on the row of Acc Pins on the left of the PSDM.
(expect 12v)
→ Try remove/re-install connector J4 on the PSDM. This harness comes from your Surepower DC Converter.
→ Also, remove/re-install the connector going into the Surepower DC Converter. Verify that it is getting B+ for input power and that it has 12v output on Pins 9&10 (ref chass Gnd).
→ Some of the older Surepower units had a fuse. Check that it is good and not corroded.
thanks for the input.
1/S6……no power
2/J4….cleaned and reinstalled
3/Converter input….no indication on PIN numbers so did both ends per diagram….one side….no power….other side meter read OL.
4/ didn’t due since no power in yet
Converter just replaced month ago with new old stock
EATON. 71030i . Does this unit have a fuse
DC Converter gets B+ power from F13.
This goes through J4 on the Org (B+) and the Or/Lg (B- ) wires.
Then ends up on Pins 1 and 12 on the Surepower Converter.
Verify that you have power going into the DC Converter.
J4….pin 5/OR and pin 6/dark grey….reading 64
Reading pin 1 and pin 12 at dc/dc…78
The older Surepower units had a fuse holder embedded in the end. Since it sounds like you have updated yours, it may not have a fuse, but it also does a pretty good job at protecting itself and shuts down the output if overdriven.
This can be seen as a momentary flash of 12v on the output.
If your car has an issue on the constant out, then you might observe a blip of power when first turned on via Main SW.
Had to put the project down due to some health problems…but…I’m back to it.
Thanks for the reply….ill check if dc/dc has power out
Well sometimes you just have to walk away….realized the J4 wasn’t completely seated in the dc/dc. Problem solved. Thanks to all for the help
