Fuel Gauge, How's it work? Options

[JoKeRkId613]

I was just wondering how the fuel gauge works on the clusterr. See I have an st205 cluster now and the fuel wont display. it tells me when im about to run out by lighting up the orange fuel light. but thats about it. the needle stays on empty. anyway to reset this or something? thanks.

[WannabeGT4]

AT200 and ST205 fuel level sending units function the same. Resistance on each is 3 ohms Full to 110 ohms Empty.

There are at least two different pinouts for the ST205 combo meter plugs. The major difference I see in the two schematics is the addition of the rear fog lights for the European models so it's probably safe to say the JDM ST205 will more than likely be identical to the Australian ST205. Also, some of the pins on plugs B and C are different as well.

According to Toyota BGBs at Celicatech
AT200 Combo Meter Plugs:
A: 13 pin
B: 16 pin
C: 10 pin
ST205 Combo Meter Plugs:
A: 16 pin
B: 10 pin
C: 13 pin

For Australian ST205 Combo Meter:
Fuel Gauge
AT200---ST205
B14---to---B1
B6----to---A7

Low Fuel Light
AT200---ST205
C6---to---B6

For European ST205 Combo Meter:
Fuel Gauge
AT200---ST205
B14---to---B2
B6----to---A7

Low Fuel Light
AT200---ST205
C6---to---B7


Also, in order to run your boost gauge you'll need to run a MAP sensor from an ST205 soley for the new guage cluster.

This post has been edited by WannabeGT4: Sep 27, 2005 - 3:45 PM