Battery Self Discharging - Need wiring Diagram

[mike carvell]

Our 1999 face lift RAV4 has an issue of Battery drain, 0.25amp continuous.

I have pinned it down to the 10amp 'DOME' fuse in the under bonnet fuse block.

I need a wiring diagram to trace out the connectors and components to isolate the fault.

I have a pre-face lift wiring diagram, but the connectors and pin outs are different, so any help would be appreciated to find a face lift wiring diagram.

[GBgraham]

No wiring diagram but you are looking at a draw of only just 3 watts and I would expect a slight current draw anyway so you are probably looking for a around a 2w/0.16a draw. Doe's the car have any non OEM extras? If it has I would start there, incorrectly connected or faulty radio or an energised relay would give you this degree of discharge.

[philip42h]

Again, no wiring diagram but there are numerous sites indicating which fuse control which components. The DOME fuse controls: Clock, personal light, interior lights, air conditioning system, wireless remote control system, headlight high beam indicator light, gauges and meters.

The clock will, obviously, draw a small current continuously. The personal light and interior lights seem the most likely culprit - either because one has been left on or because there is a partial 'short' somewhere around the switches or connectors.

[flash22]

dome is all interior lighting and illumination start by pulling the courtesy light and boot light bulbs do you have leds or an aftermarket radio

[mike carvell]

Thanks for all the replies to date.

 

Couple of points:

• With the dome fuse removed the main bean indicator, clock, radio etc still work.
• Only seems to affect the interior lights which are LED lamps, need to try removing these in turn.
• Pulling the fuse does not make any relay click, but will try pulling them all in turn.

[philip42h]

13 minutes ago, mike carvell said:

the interior lights which are LED lamps

Those most certainly won't be OEM. Did you fit them or was that a previous owner? A possible culprit perhaps?

[mike carvell]

Hi,

The LEDs are just replacement festoon bulbs, but will remove and see what happens.

Cheers