I have a problem with my 1 month old Estima: While driving suddenly I lost power steering, Speed reading and all the warning lights including Engine, Power steering, traction control and ABS came on. The car remained drivable and the engine sounded the same. Brought it to the service center (PI) and they said it was a bad battery, changed it. Problem happened again and they changed battery again. Finally they also changed the alternator at my insistence but the problem continued. They then blamed the drive camera for draining too much battery. I've been asked to unplug it and see if the error comes back on.
I have a HUD which reads real time voltage. I noticed that when in Park, its always 13.8-14.2V. When I drive, for the first few mins it will remain in this range. After that, on the road it will suddenly drop to 12.2V when the accelerator is being pressed. If I stop stepping on the accelerator while the car is moving at speed, the voltage will jump back to 14.2-14.4V. Also when I turn on the lights the voltage will jump to 13.7V. Turning on or off the air con makes no difference.
I'm wondering if this is normal behaviour for the Estima or do I have a problem with some electronic control component?
Thanks for any advice!
P.S. Since this is my first post, I'm not allowed to start a new topic but if anyone is kind enough to help me re-post this in the Japan Car forum, I'll be very grateful for the increased exposure!