[rmonie]

Excellent sleuthing & have noted it as I have one of these vehicles as well. My previous ride the Pajero 2.8 SFX (2009) came with a rear camera lcd in the rear view mirror, just FYI!!

[Dry Ice]

Thanks for sharing!

I guess I will need to do the same on my 7yr old car. During the lockdown the battery drained completely and it had to be recharged. I have an aftermarket stereo and remote locking installed. Wonder if any of them are acting up now given the age of the car.

For now, have advised my folks to run the car atleast once a week for 30-40mins.

[vigsom]

Originally Posted by Dry Ice

During the lockdown the battery drained completely and it had to be recharged

It is normal for a battery to lose charge over, say, 2 months without the engine running( and alternator charging) adequately.

How old is the battery?

[Jeroen]

Originally Posted by Dry Ice

During the lockdown the battery drained completely and it had to be recharged. I have an aftermarket stereo and remote locking installed. Wonder if any of them are acting up now given the age of the car.
.

We need to distinguish between a parasitic draw and what is a normal draw.

Parasitic draw is when an abnormal and continuous discharge of power occurs after having shut off the engine. Usually, this is caused by a short circuit or an electrical device that remains in the "on" position or energized, when it should not.

On a modern car there are several components that remain energised, even when the engine and ignition are turned off. e.g. a clock. Many stereo’s, fitted or aftermarket require power to maintain their memory settings.

These are two examples that have tiny draws.

You remote locking is likely to be permanently energised? It needs to be able to detect when you want it to open the car!

As far as I have seen/experienced the relative BIG draws are immobilisers and alarm system. That is the ones that are factory fitted. On all aftermarket stuff: All bets are off! But usually draws more than the proper factory installed stuff.

It really depends on the car, but rule of thumb tends to be that cars with immobilisers and alarm systems will drain the battery to the point where you will have problems starting in 8-12 weeks.

If your car doesn’t have an immobilisers/alarm, or you don’t care so much, but just don’t want the battery to discharge, just disconnect the battery. If it was properly charged it should hold its charge for many many months.

Good luck

Jeroen

[Dry Ice]

Originally Posted by vigsom

It is normal for a battery to lose charge over, say, 2 months without the engine running( and alternator charging) adequately.

How old is the battery?

It's less than 2 years old. Thing is, it has happened in the past as well when the car was unused for about a month.

That's why I suspect there must be something similar in my case.

Originally Posted by Jeroen

We need to distinguish between a parasitic draw and what is a normal draw.

Like I said, the battery is relatively new and it has happened in the past as well when the car was stationery for less than 8 weeks. Hence my suspicion that something somewhere is drawing more than it should.

[Jeroen]

Originally Posted by Dry Ice

Like I said, the battery is relatively new and it has happened in the past as well when the car was stationery for less than 8 weeks. Hence my suspicion that something somewhere is drawing more than it should.

Yes, with a normally, regulated maintained car and battery, anything below 8 weeks should probably require some investigations.

Sometimes it can be very simple stuff, like a valet light that remains on, after shutting the boot, or a glove compartment light staying on.

in your case I would check the aftermarket bits first!

Good luck,
Jeroen

[Naveen_0181]

Originally Posted by rjainv

What would have been the right wiring for camera to not create this leakage current issue?

For any after market reverse camera installations I would prefer to draw the power to the reverse camera and the display both from the reverse light in the boot. This way we can be sure the camera and the display are powered only when reverse gear is engaged.

I have done multiple installations like mentioned above and never faced any issues.

I have seen some installation diagrams from vendors who recommend to connect the monitor to always on power(ACC) and it will wakeup when it senses a signal from rear camers(which is connected to reverse light), I feel there is no use of keeping the monitor powered all the time even it is in sleep state.

[vigsom]

Originally Posted by vigsom

My 2007 Grand Vitara battery has been showing a voltage drop of 0.6 to 0.8V over a fortnight with the car idle

Proof of the pudding is in the eating.

Left the car idle for a week and now the battery voltage had dropped only by a mere 0.05V .

[Vikram13594]

Will you please tell source for wiring diagrams?

[vigsom]

I found the wiring diagrams in the service manual.