Audi 80, Audi 90 Current Flow Diagram No.14 Audi 90 (2.0 litre fuel injection engine, 118 kw, multipoint injection, scylinder) Engine code letters NM from June 1990 Positions of relays: also see "Fitting Locations" Relay plate with fuse holder Auxiliary relay carrier, :l; ll; li; i; ir; { ttttttll E/' ri, =Er _:3 ' EJ, _, t_ lf. lf l ll c_._; z.lelllclllolrrilt:n =, l: =J l l * l J tml ll llll rl L r leonncoo_l lcnu ocl lnuopodol CCOnOOD lnnol orrl truoooool EEEnatrol londu Dt: louocctrol E a E tr tr E Fog light relay Radiatorfan 2nd stage relay Control unit for fan runon Relief relay for X contact Bridge connection with manual gearbox/relay with automatic gearbox Fuel pump relay g E Buzzertor side lights and radio Oil pressure warning control unit Fuse colours 30 A green 25 A* colourless (white) 20 A yellow 15 A blue 10 A red 5Alightbrown
No. 1411 Current Flow Diagram Audi 80, Audi 90 Battery, starter, alternator 30 r5 x 3l 30 t5 X 3l 2,,5 0,.5 nolsw bn/qn n v lszl 5,0 5,0 t'o no 0,.5 nol sr{ t_ o l2b/2 bl = blue ;1 : purple O : T d sw : black ' 6,0 th tl sl.t Ttj 2,,5 no/ gw JU 5o ls0?i l^ t /\t\t\ on,/r'o or/ro oa/ro ll A Battery B Starter C Alternator c1 Voltage regulator D lgnition/starter switch r1j Connector single, on bulkhead, right T2b Connector 2 pin, black, under dash panel, diagnosis plug T 10a Connector 10 pin, yellow, connector point in aux. relay carrier Eafthing strap, engine alternator Earth point, in battery box Earth point, on intake manifold Eafth connection 1, in front right wiring loom Earth connection, engine block, in front right wiring loom Connection (61), in dash panel wiring loom
Audi 80, Audi 90 Gurrent Flow Diagram No. 1412 Electronic fuel injection 30 t5 x 3l l 1,0 1,5 sw qnloe l "1" fl l3n/l ll 1,5 1,5 1,5 b^//'o br/ro bnlno l3a 12tA lra lq oi2io ZA f{sl r qn/ lis g /_g " lno Jrgz BA,, ffi:,r,i: 208 r8b 158 r48 28 sb lzca q,5 o^ q,5 on 38 1258 on J l4 tf, r5 17 g,s 0,s or bn T:r''; t Tir''n JJ 18 J )n r:'!3 lrn T:sr: 11 = purple lo : fed sw : black 21 5 24 me6r G 4 Firing point sender G 28 Engine speed sender G 61 Knock sensor G 66 Knock sensor ll J 192 Multipoint injection control unit N 30 njector, cylinder 1 N 31 njector, cylinder 2 N 32 njector, cylinder 3 N 33 njector, cylinder 4 N 34 Series resistance for injectors N 83 njector, cylinder 5 T 3e Connector 3 pin, green, in engine compartment, right T 3f Connector 3 pin, black, in engine compartment, right T 3g Connector 3 pin, grey, in engine compartment, right T 3h Connector 3 pin, blue, in engine compartment, right T 3n Connector 3 pin, grey, in engine compartment, right T 3o Connector 3 pin, brown, in engine compartment, right Earth connection, engine block, in front right wiring loom
No. 1413 Current Flow Diagram Audi 80, Audi 90 Electronic fuel injection, fuel pump relay, fuel pump nolbl q nc. " " t. : t. no sw/ol 130 n l.'il l,,j{l ls3 T t+{t l" =g lrt ttt Q,5 0,5 0,5 br nolbr onlbl T.^ t5/j 0,,5 sr{/ }rs ila lr54 lr0a 14A 22A l.'"" trl,5 0,5 /oe su/er liro lioo 0, br/ l9a 0Tti' 0,5 qe lzeo SW 25A ' luo 228 Jrsz 178 188 l98 li purple ro = red SW : black 0,5 0,5 sw qnlbl 0,,5 bn/qn l; 5 Li 1 o[75n lssl r 2,5 on,/oe lq?e 26 27?n 31 32 34 37 l\,. Fl l:rlltj ry"" lr, 2,s bn l_ frlz/2 t 6i ls:6fr1 G 6 Fuelpump G 62 * Sender for coolant temperature G 69 Throttle valve potentiometer G 70 Air mass meter J 17 Fuel pump relay J 192 Multipoint injection control unit N 71 ldling speed stabilization valve S 27 Fuse in additional fuse holder (engine systems for electronic ignition) S 28 Fuse in additionalfuse holder (engine systems ll for lambda control) T t h Connector single, yellow, behind dash panel, left f 2 Connector 2 pin, under rear seat, left T Zap Connector 2 pin, brown diagnosis plug, under dash panel T 3a Connector 3 pin, red, behind dash panel T 4 Connector 4 pin, black, in engine compartment, right T 5 Connector 5 pin, black, connector point in aux. relay carrier Earth point, luggage boot, left Positive (+) connection (15) via luse2tinfrontrightwiring loom
Audi 80, Audi 90 Current Flow Diagram No. 1414 Electronic fuel injection, ignition br = brown gr = grey 11 : purple fo : fed sw = black ws: white G40 J 192 N N70 o P O Hall sender * Multipoint injection control unit lgnition coil Coilwith final output stage lgnition distributor Spark plug connector Spark plugs Earth point, on intake manifold Positive (+) connection (15) via tuse 27 in front right wiring loom
No. 1415 Current Flow Diagram Audi 80, Audi 90 Visual and acoustic oil pressure warning system, speedometer t qn/b L [r,0, nq qi75 u ;w 0,.5 n/b fstl t n< b L/sw tt f" 0,5 b L/sw lo sw /b l. gl n< or/ a t,l,z8, f,*,, '1,28," ffi Fol ',0 b L./no t* g tsb/2 olzp" l :t_ ;i'l "" o l23" br = brown ge yellow gn = green g1 : purple ro : red sw black,0 0,.5 bl bl t t_!.t t!.?t q,s br l Mra Mrz tgr6s79 F 1 Oil pressure switch (1.8 bar), white F 4 Reversing light switch F 22 Oil pressure switch (0.3 bar), brown G22 Speedometer sender J 114 Oil pressure warning control unit M 16 Reversing light bulb left M 17 Reversing light bulb right T 2a Connector 2 pin, white, behind dash panel, left T 5 Connector 5 pin, black, connector point in aux. relay carrier T 5b Connector 5 pin, in engine compartment, lefi T 7 Connector 7 pin, in engine compartment, right T 10 Connector 10 pin, black, connector point in aux. relay carrier Earth connection 1, in front right wiring loom Positive (+) connection (15a), in front right wiring loom Positive (+) connection (15) via fuse 27 in front right wiring loom i only in vehicles with automatic gearbox
Audi 80, Audi 90 Current Flow Diagram No.1416 Dash panel insert, coolant monitor nq bl/ws 0.5 b Lilbr l_ fi lro 0,5 b L/bn "T ozz f Trc a lssl nqnq. Y..J ollqe qn/oe t.b J'rt'cl'"l o,s 8,5 o,s o.s o?zi. si25l ul,zqe bl/ae ac/ae onlqe l;,,,f,,,, lq.[;,,, l fitz, trq '/s Et7, gt7/6 0,5 0.5 0,.5 0,.5 0, s 0, s 0, s b L/ws swlbl b L/ae bl/ae qnloe onloe onloe 1,, lu,^ l=,* J_t_t_f "'l ffiffiffiffi "1 F;#t.:',:..,; :::[:l :.j,:: i,''i' ',,1,,1 f:l T0,, t' 9,.5 o L/ on T::TF,[.,H$ '' l br = brown ge : yellow ;1 = purple fo : f d SW: black FTTM F 21 Hydraulic brake setvo unit warning switch F 34 Brake fluid level warning contact F 66 Coolant shortage indicator switch F 75 Hydraulic fluid warning contact F 76 Electronic thermoswitch G 3 Coolant temperature gauge JO Voltagestabilizer J 140 Switch unit for interior light delay K 1 Main beam warning lamp K2 Alternator warning lamp K 3 Oil pressure warning lamp K28 Warning lamp for coolant temperatureicoolant shortage K 62 Warning lamp for brake fluid level/hydraulic fluid level and hydraulic pressure T 1d Connector single, white, behind dash panel, left T 3 Connector 3 pin, brown, behind dash panel, left T 5 Connector 5 pin, black, connector point in aux. relay carrier T 5a Connector 5 pin, brown, connector point in aux. relay carrier T 7 Connector 7 pin, in engine compartment, right T 10 Connector 10 pin, black, connector point in aux. relay carrier T 26 Connector 26 pin, yellow, dash panel insert f 26a Connector 26 pin, blue, dash panel insert Earth connection 1, in front left wiring loom Earth connection 1, in front right wiring loom Earth connection (sender brake system/steering) in front right wiring loom Positive (+) connection (15a), in dash panel wiring loom * only with interior light with delay feature
No. 1417 Current Flow Diagram Audi 80, Audi 90 Dash panel insert, rev. counter, headlights, side lights '%,*it,',gl{r,ozsf 0,.5. 0,.5 ws/b L br,/no gel sbr l,_5 wslsh 0,5 qnlsw 0,.5 9r/ no V, ) U on Dn Tr ors gn : gf tl 1i = purple fo : fgd sw: black 0,5 0,5 74 tr6til E 15 Heated rear window switch G5 Rev.counter G21 Speedometer L 1 Twin filament bulb, left headlight L2 Twin filament bulb, right headlight M 1 Side light bulb, left M 3 Side light bulb, right R Connection for radio T 10 Connector 10 pin, black, connector point in aux. relay carrier T 26 Connector 26 pin, yellow, dash panel insert T 26a Connector 26 pin, blue, dash panel insert Earth connection 1, in dash panelwiring loom Earth connection 1, in front left wiring loom Earth connection 1, in front right wiring loom Connection (speed signal), in dash panel wiring loom
Audi 80, Audi 90 Current Flow Diagram No. 1418 Lighting switch, headlight dipper/flasher switch 30 l5 x 3r ffi sw ',0 Tsurr N.,, 1,.0 1,.0 gn/no gn/sw 2,,5 sr.r / o r,.0 2,5 2,5 9r,/9e Lo Lo 2,5 rsl sw 2,5 qe lr nl /us l,0r bn/xs Tslzz tlr0 99 F{M bl = blue ge : yellow gn = green ;1 = purple lo = ed sw = black ws : white D lgnition/starter switch E1 Lightingswitch E 4 Headlight dipper/flasher switch E 19 Parking light switch J 59 Relief relay for x contact J 152 Buzzer for side lights and radio T 2k Connector 2 pin, black, behind dash panel, left T 6b Connector 6 pin, coding plug connection for foglights, behind dash panel, left Earth connection 1, in dash panelwiring loorn * Switzerland, Finland, EC countries, standard (wired together with side lights, dipped and main ** beam headlights) Australia, New Zealand, Holland (wired together with side lights only) Note: The illustrated wiring of the fog lights and rear fog light is not applicable for Great Britain or the Audi Coup6. For details of wiring on these vehicles, see Current Flow Diagram for fog lights and rear fog light (Great Britain) and Current Flow Diagram for fog lights and rear fog light (Coup6).
No. 1419 Current Flow Diagram Audi 80, Audi 90 Fog lights and rear fog light 30 x 3l 30 rs x 3l ( i,0 1 l_99j 0,.5 qnl Qn li.le ',t 0,5 1,.0 qn,/on br/ro L 2e Ezo 1,5 9"49n n< sr{/b L 4/N l5l58o Era l1lls t_991,'5 sl{ /d e 5 9n Ez m T sw/ o ' L 2,.5 5wlqe l T<r / 15o fr'.,' l6/nsl lr0 Qrl ws l,_0 onlws tl 6/NL 1,.5 ws/ qe hi,oo,, bl = blue li = purple lo : t' d sw = black fn,, 0,.5 9r,/ \{s [: : Lzo od"t fr,, fl,, tl r2ll1 tzvr f r,0 1,0 bn br l l q,s bn 100 r0r r02 103 104 105 106 107 108 109 1i0 F7ffii E7 Fog light switch E 18 Rear fog light switch E20 Switches and instruments lighting control J 5 Fog light relay L20 Rear fog light bulb L22 Fog light bulb, left L23 Fog light bulb, right L29 Engine compartment light bulb T 2l Connector 2 pin, in engine compartment, left T 2m Connector 2 pin, in engine compafiment, right T 6a Connector 6 pin, white, in luggage boot, left T 6b Connector 6 pin, coding plug connection for foglights behind dash panel, left T 10a Connector 10 pin, yellow, connector point in aux. relay carrier T 10b Connector 10 pin, brown, conneclor point in aux. relay carrier T 41 Wiring adapter for terminal 75s W 6 Glove box light X Number plate light Earth connection 1, in dash panelwiring loom * Earth connection 1, in front left wiring loom Earth connection, in tailgate wiring loom Note: The illustrated wiring of the fog lights and rear fog light is not applicable for Great Britain or the Audi Coup6. For details of wiring on these vehicles, see Current Flow Diagram for fog lights and rear fog light (Great Britain) and Current Flow Diagram for fog lights and rear fog light (Coup6). 000.s208.55.20
Audi 80, Audi 90 Current Flow Diagram No.14110 Radiator fan nq bl/ro 12 ' xj ++ il*,,,,':;:' '$ l,: 'ti+i,:..;{'55a li = purple lo : led sw = black F 54 Radiator fan thermo switch (2nd stage) J 101 Radiator fan 2nd stage relay V7 Radiatorfan Eadh connection 1 *, in front left wiring loom Positive (+) connection (75a), in front left wiring loom 000.s208.s5.20
No. 14111 Current Flow Diagram Audi 80, Audi 90 Fan runon. 0,.s or/ gn br = brown gn = green gr = grey 11 : purple fo : fed sw = black ws: white F 87 Thermo switch for fan runon J 138 Control unit for radiator fan runon T 3 Connector 3 pin, brown, behind dash panel, left Earth connection 1, in front left wiring loom Earth connection 1, in front right wiring loom Positive (+)connection(75a), in front left wiring loom 000.5208.55_20