[windmill]

Does it give any engine lights or other recall-lights on your display ?
Congratulations for your new baby

Cheers

 

[Philip Edwards]

No warning lights or any indication that they had broken

I just noteced them looking around under the bonnet

Regards

 

[Foxpaw]

? What's an earth strap? Like a wire to ground the engine, or some kind of motor mount?

 

[Yves M.]

Hi,

This winter, I had wrote about those two. The tread was something like IMA and Check Engine lights.

One ground strap is listed to ground the body to the engine and the other is to ground the body to the transmission.
Actually, both are bolted between the body and transmission.

When the engine starts with the IMA there is no problem. When the engine starts with the 12v starter and in a high amp situation (cold weather) then the bad electrical link causes the car computers to go awire. The IMA and Check Engine lights are up and a lot of ODBII codes apepar:
P1600 IMA system Malfunction
P1586 Motor Power Inverter MPI problem
58 Charge/Discharge circuit problem
P1580 Battery Current circuit problem
P1635 BCM module problem

Then there is no IMA, no 144v to 12v converter , no power steering,... until an MCM reset.

Those two straps are about size 8 wires and are made of solid copper. IMHO, The engine vibration will brake those after a while. They are new now on my car but this summer I will try to replace them with:
- Longer wire lengh to help reduce vibration brakage
- Use stranded and soft wire to help reduce twist effort and make them
more robust. After market wires and ends.
- Set them as a 'U' instead of being strait