you need the factory color code and the bosch color codes.
then wire per that. there is no other way. (universal)
that is the penalty for not using a PNP sensors, plug and play.
do not mess up,wiring the 1 heater to the CELL + wire
risks blowing out the senor or ECU. a $500 error.
here a list. 89-98 list.
first the bosch list ,with comments. my 91 , just and example.http://www.fixkick.com/oxy-sensor/bosch-pinout.JPG
all bosch unversals sensors have a paper inside,
and is very hard to read and understand.
my guess is it fails german translations.....
your car is a 4 wire sensor.
on my cars 96 , the heater wires are non polar so are much easier. lets do them first.
the bosch color is.white, on my car its blk.
so i wired, bosch white to my cars black. x2
bosch gray is sensor ground, (special) wired to cars white wire.
every year, suzuki changes wire colors, not reading the FSM is FAIL.
and last my Bosch CELL+ pin is black and wires to my cars blue.
O2 are like battery CELLS, and are Polar.
Suzuki changed the blue color like a drunk sailor spends money.
a royal PITA. that is. LOL !
the for sure solution is to look it up in the FSM.
for all wire, find your blue, and win !http://www.scantool.net/software/alldata-diy-1-month-subscription.html
see the 9 times suzuki changes here, prior to 2004http://www.fixkick.com/sensors/OxyGen_sensor_help.html
did they change in 2006, ? Ill never know, as Suzuki is bust here.
nor will i pop for $15 to find out. When my Suz, dies, that be the end.
btw 2: the sensor colors on any suzuki are "NCA". FSM drawings.
no color assigned.
the colors mentioned are HARNESS colors in the sensor side.
suzuki uses many different brands sensors and colors, or reserves the right to do so at anytime. Bosch, NGK, Delphi, etc.
tricky huh? thus the pages , linked.
back in 1996 they should have set ISO standards but did not....
i hope that is not confusing.
but in a nut shell.
1: grab bosch sheet,
2: grab the car schematic, for ECU. (fsm, or alldata, or mitchells)
there is your answer.
no man as the blue wire color on all car or all suzuki;'s
not yet. tell my yours and ill update my records.