ad blue BMW 318ti 1999 E36 Electrical Troubleshooting Manual


 










A WAVY LINE
MEANS WIRE IS
CONTINUED
ENTIRE COM-
PONENT SHOWN
COMPONENT WITH
SCREW TERMI-
NALS
CONNECTOR AT-
TACHED TO COM-
PONENT
PART OF COM-
PONENT SHOWN
.75 BR.5 BR
X270
4
.5 BR
.5 BR
3
.5 BR.5 BR
X270
4
.5 BR
.75 GN/WS CONNECTOR AT-
TACHED TO COM-
PONENT LEAD
(PIGTAIL)
COMPONENT CASE
ATTACHED DI-
RECTLY TO METAL
PART OF CAR
(GROUNDED)
WIRE ATTACHED
TO METAL PART
OF CAR
(GROUNDED)
GROUND NUM-
BERED FOR REF-
ERENCE ON COM-
PONENT LOCATION
CHART
WIRE SIZE IN MM
SQUARED
BL BLUEWIRE COLOR
BR BROWN
GE YELLOW
GN GREEN
GR GRAY
OR ORANGE
RS PINK
RT RED
SW BLACK
VI VIOLET
WS WHITE
ONE POLE, TWO
POSITION SWITCH
SWITCHES THAT
MOVE TOGETHER
DASHED LINE
SHOWS A ME-
CHANICAL CON-
NECTION
BETWEEN
SWITCHES
TR TRANSPARENT
CONNECTOR REF-
ERENCE NUMBER
FOR COMPONENT
LOCATION CHART
TWO CONNEC-
TIONS (PINS) IN
THE SAME
CONNECTOR
DASHED LINE INDI-
CATES TERMINALS
OF THE SAME
CONNECTOR
12
X165
1212
SYMBOLS

WIRE INSULATION
IS ONE COLOR
PIN NUMBER
WIRE INSULATION
IS ONE COLOR
WITH ANOTHER
COLOR STRIPE
(GREEN WITH
WHITE)




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
X2 . . . . BATTERY B+ START POINT . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


X9 . . . .

B+ JUNCTION POINT . . . . . . . . . . . . . . .

rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


X13 . . (30 PINS, BLACK) . . . . . . . . . . . . . . . . . . LH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
0
X14 . . (30 PINS, NATURAL) . . . . . . . . . . . . . . . . LH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
0

X16 . .
(26 PINS, NATURAL) . . . . . . . . . . . . . . . .
LH side of dash rear side of instrument cluster, A2w . . . . . . . . . . . . . . . . . . .
0
0

X17 . .

(26 PINS, BLUE) . . . . . . . . . . . . . . . . . . . .

LH side of dash rear side of instrument cluster, A2w . . . . . . . . . . . . . . . . . . .

0

0
X20 . . (25 PINS, BLACK) . . . . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
0
X22 . . (26 PINS, GRAY) . . . . . . . . . . . . . . . . . . . behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
0

X32 . .
(12 PINS, NATURAL) . . . . . . . . . . . . . . . .
LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


0
X33 . . (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

0
X35 . . (12 PINS, NATURAL) . . . . . . . . . . . . . . . . below LH side of dash RH side of steering column . . . . . . . . . . . . . . . . . . . .
0

0
X44 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0
X45 . .

(9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . .



0
X51 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0
X52 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0

X53 . .
(9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . .


0
X56 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0
X58 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0
X63 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X64 . .

(9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . .



0
X65 . . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
X143 . (3 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . . under rear of car RH side of RH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0

X163 .

(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

0
X165 . GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X168 . (1 PIN, –––) . . . . . . . . . . . . . . . . . . . . . . . . top of steering column

X173 .
GROUND . . . . . . . . . . . . . . . . . . . . . . . . . .
below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

X256 .

(26 PINS, BLACK) . . . . . . . . . . . . . . . . . .

ahead of RH front door in lower RH A–pillar . . . . . . . . . . . . . . . . . . . . . . . . . .


0

0
X257 . (26 PINS, BLACK) . . . . . . . . . . . . . . . . . . ahead of LH front door in lower LH A–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X271 . (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . LH side of dash rear side of instrument cluster, A2w . . . . . . . . . . . . . . . . . . . 0 0

X272 .
(2 PINS, WHITE) . . . . . . . . . . . . . . . . . . . .
under roof center panel



X285 . (15 PINS, BLUE) . . . . . . . . . . . . . . . . . . . . below RH side of dash behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0 0
X292 . (9 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 0
X295 . (8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
0
X311 .

(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

underside of luggage compartment lid left . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0

0
X312 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in RH rear side of luggage compartment behind RH rear light assembly . .
0
X315 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . underside of luggage compartment lid left . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

X316 .
(4 PINS, YELLOW) . . . . . . . . . . . . . . . . . .
center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

0
X318 . (8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in RH rear side of luggage compartment behind RH rear light assembly . . 0
X319 . (8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . .

0 0
X322 . (6 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0
X324 .

(4 PINS, YELLOW) . . . . . . . . . . . . . . . . . .

center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

0
X333 . (4 PINS, NATURAL) . . . . . . . . . . . . . . . . . rear of engine compartment below center of cowl . . . . . . . . . . . . . . . . . . . . . 0 0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
X511 . (8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0
X516 .

(5 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


0
X521 . (6 PINS, BLUE) . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X522 . (3 PINS, NATURAL) . . . . . . . . . . . . . . . . . above LH footwell dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0

X531 .
(1 PIN, NATURAL) . . . . . . . . . . . . . . . . . .
center console near gearshift lever



X532 .

(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

center console near gearshift lever




X537 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 0
X538 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
0

X540 .
(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
LH side of glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

X541 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . LH side of glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0
X603 . (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . under driver’s seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0
X604 . (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . under passenger’s seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0
X605 .

(12 PINS, BLACK) . . . . . . . . . . . . . . . . . .

in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . .

0

0
X606 . (26 PINS, BLACK) . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . 0
0
X623 . (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in upper LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

X624 .
(4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
in upper RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

0
X625 . (6 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 
0
X627 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in roof panel
X638 . (2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . . below RH side of rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


X641 .

(6 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



0
X643 . (4 PINS, YELLOW) . . . . . . . . . . . . . . . . . . in roof panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0