GreenHybrid - Hybrid Cars - Conversation Between GaryG and Gregscape

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Conversation Between GaryG and Gregscape

Conversation Between GaryG and Gregscape
Showing Visitor Messages 1 to 2 of 2
  1. 09-04-2009 01:59 PM - permalink
    PS: jump start button seem to works (lit for 10 minutes). Removing cable from 12V battery stops the engine, so power goes only one direction (step up) through the DC/DC module.
  2. 09-04-2009 12:01 PM - permalink
    Hi Gary,

    I red your relay story so you migth have any idea what is wrong with my car. Here in Hungary there are very few specialist knows about hybrids, a mere 2 dozens of FEHs drives in the country.

    I recently imported a 08 FEH with a major crash, now it's repaired. The car starts however the 12V battery drains during driving, then the steering loosing its power and the car stops. "Regen braking disabled" displays. The engine can be started for seconds for 3-4 times. The 12V battery needs to be taken out for a nigth to charge then reinstall to drive the car. The mechanic could drive it to his shop for 10 miles, at the last mile the engine stopped. He managed to drive it EV mode at 20mph, at the last hundred yards he had to push the car in his shop.

    Now a recharged 12V battery can start the the engine for 10-15 seconds while "stop safely now" displays. After the ICE shuts down the car is drivable in EV mode for another 10-15 seconds, then it stops. Switching off and on again and the process repeats. 12V systems seem to work so I do not think my power sustain relay migth be burned. I rather suspect the DC/DC module does not connect HV bus to LV bus properly, but this would explain only the first probelm.

    On Monday I will have DTCs red. Untill then would you please give me some hints?

    Best regards,


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