430 Battery Drain

Does the car beep when you unlock it?

 

I did some time ago on a 360. The flasher module up under/behind the glove box was hot to the touch. Something internally had gone south. I replaced it and it was all better. Unplug it and see if the battery draw goes down to where it should be.

 

AF17 fuse feeds the Hazard/Turn Module and the Interior Lights Timer Module.

The Interior Lights Timer controls the front boot light as well as the interior dome light. It doesn't provide power to them, but I imagine it will use a little power to control the earth to the lights. 0.4 amps seems a little high though, unless it has a similar issue to Rifledriver's flasher module. Note that the F430 Flasher Module has a different design/pin configuration to the 360's.

Latest wiring diagram here:

https://www.dropbox.com/t/ZXgpaicPFXwJcEQE

I'm not sure where the Interior Lights Timer Module is on a RHD 430, but on a LHD it's possibly up around the driver's left knee area.

 

Out of curiosity, what if it doesn’t beep when you unlock it?

 

That's a good thing. A beep (or several) is a code to indicate that the alarm was triggered or that one of the closures e.g. hood isn't secure.

 

That's why I asked about the bleep from the alarm, Mike. It indicates that one of the closures isn't secure - in this case the luggage compartment which leads to the light being on permanently.

 

Maxi fuse 4 feeds fuses AF2, AF6, AF10, AF14, AF18, AF1, AF5 (switch lights, but not the window switch lights), AF9 (Instrument Panel), AF13 (internal lights timer, etc) and AF17.

Maxi fuse 3 feeds the HVAC ECU and the blower fan speed controller ("hedgehog"). Not sure why this would draw current with the ignition turned off. Does the ECU have any memory circuits?

HVAC diagram here:

https://www.dropbox.com/t/2Hj6VUrqJiWWOWyl

Window switch lighting power comes from the Window ECU. I assume there are circuits in there to keep things active for certain time periods. Live battery power goes to the Window ECU via fuses behind the LH seat (PSF3 and PSF7)

Window diagram here:

https://www.dropbox.com/t/PEaaJD3SjgQcjhPl

 

Did you find the Internal Light Timer module? Try disconnecting that or pull fuse AF9.

(EDIT: I see you already checked those fuses)

 

Pulling AF9 should have the same effect, but I see you may have already checked the current on that.

 

It's not really clear from the parts or wiring diagrams

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Passenger's left hand knee (RHD car)?

 

LHD car location here:

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Under the dash to the left somewhere.

 

Looks like it's mounted against the side wall

 

lol

 

31% of daily intake of fat... mmmmmmm (according to their website)

Actually, I don't remember them (from my childhood). I only remember Yorkshire pudding and cold pork pies (not served together).

 

Did you notice a delay on the light? It is hooked up to the timer. If you lock yourself inside, I guess it gives you enough time to see and pull the internal release handle (on USA cars at least).