1988 FIAT TEMPRA fuel

Q Step 4: Re-assemble in the reverse order using torque
settings shown in Chapter
3,
Facts and Figures
Job 8. Bleeding the power
steering.
The power assisted steering system is self-bleeding. You
should slowly apply full lock alternately to the right and left
with the car stationary and the engine running, while an
assistant tops up the reservoir. This operation should be
carried out each time the connecting pipes are removed or
refitted.
Job 9. Front anti-roll bar -
removal and refitting.
G Step 1: Take note of the components shown here.
G Step 2: Support the car on axle stands and remove the
front wheels for access.
G Step 3: Undo the nuts at the bottom of the anti-roll links
(see illustration Job
9-1,
part 4).
G Step 4: Undo the four bolts securing the two mounting
brackets (Job
9-1,
part 8) and remove the anti-roll bar.
G Step 5: Before refitting, check the condition of the
rubber mounting blocks and bushes and replace if necessary.
Q INSIDE INFORMATION! The washers (Job
9-1,
part 6)
must be fitted with their convex side facing the rubber
bush (part 7). B
lob 10. Rear anti-roll bar (when
fitted).
• Step 3: Undo the three mounting bolts from each side
(see illustration Job
1-1D)
and wriggle the anti-roll bar from
under the car.
• Step 4: Check the anti-roll bar for obvious distortion or
corrosion and the bushes for deterioration. Replace if
necessary.
I—J Step 5: Refit in reverse order.
Job 11. Front shock absorber -
replacement.
Q Step 1: Slacken the bolts of the relevant front wheel,
then raise the front of the car and support on axle stands, so
that the front wheels hang free. See Chapter
1,
Safety First!
Q Step 2: Remove the relevant wheel then detach the brake
hose from the suspension strut bracket.
• Step 3: Remove
the two bolts
('spannered' and
arrowed) which
secure the hub carrier
to the base of the
shock absorber and
separate them.
• Step 4: Working
under-bonnet, undo
the three bolts
('spannered' and
arrowed) securing the
top mounting to the
bodywork turret.
• Step 5: Lower
the suspension strut
to the ground.
• Step 6: Using two coil
spring compressors spread
over as many spring coils as
possible, compress the spring,
tightening each compressor a
little at a time, in turn, until
the spring ends are free of
their seats.
• Because of the irregular shape of the top end of the
spring coils, it can be difficult to use spring
compressors safely.
• We recommend having this work carried out by your
FIAT agent with the correct compressing tool. G Step 1: Support the rear of the car on axle stands.
Job 9-1
1
-
anti-roll bar 2
-
mounting bracket (2 off) 3
-
front crossmember 4
-
anti-roll bar link rod
(2
off) 5
-
lower wishbone 6
-
washer 7
-
rubber bush 8
-
mounting bracket bolt (4 off)
G Step 2: Remove the fuel tank as described in PART
F:
FUEL
AND EXHAUST, Job 10
• Step 7: B INSIDE INFORMATION! Special tool, FIAT
no. 1857509000 is required together with another tool,
no. 1874551000 in order to prevent the centre rod from

Job 13. Rear shock absorbers and
coil springs - replacement.
Q Step 12: ...then complete the
operation by using a standard
puller with a strong packing piece
(arrowed) for the puller shaft to
'push' against.
G Step 13: Remove the circlip
(see illustration Job
12-9,
part b)
and drift or press out the bearing
outer track from the hub carrier.
• Step 14: Check the hub
carrier for serviceability and
replace if it is in any way
damaged.
D INSIDE INFORMATION! The
new bearing is a complete
sealed unit and requires no
extra lubrication. D
• Step 15: Press the bearing
into the carrier using pressure on
the outer track ONLY (a). Fit the
circlip to retain it.
• Step 17:
Reassemble the front
suspension and brakes

in
the reverse order of
removal. See relevant

Jobs
for detailed infor-
mation. Use a NEW
hub nut fitted as
shown.
FACT FILE: STAKING THE HUB NUT
• Step 18: Use a cold

chisel
with an edge
ground to an angle of
about 60 degrees to stake

the
collar of the nut. USE

A
NEW NUT EACH TIME
IT IS REPLACED.
Q Step 19: Make sure the staked-down section of the collar

fits
in the stub axle

slot
in the opposite
direction to the
direction of the

nut
rotation, as
shown.
• Step 1: Refer to the drawings Job 1-1Cand 1-1D.
• Step 2: Leave the weight on the suspension by means of
a jack under the trailing arm (see illustration Job
1-1C,
part
• Step 3: Undo the nuts (see illustration Job
1-1D,
part
6)

and washers retaining the shock absorber (Job
1-1D,
part 5).
• Step 4: Pull the shock absorber off the top and bottom
mounting studs and carefully lower the jack to release the
pressure on, and then withdraw the coil spring. See also
Job 11
O Step 5: Refit in reverse order making sure that the coil
spring is properly seated top and bottom and that the shock
absorber nuts are tightened to the correct torque. See
Chapter
3,
Facts and Figures.
Job 14. Rear suspension and
wheel bearings - replacement.
Carry out this Job in connection with illustration Job
1-1C
and
1-1D.
• Step 1: IMPORTANT NOTE:
The trailing arms come
complete with bearings and
spacers (arrowed) as an
assembly. If the bearings are
defective, or the arm is cracked
or distorted, or showing signs
of wear or corrosion on the
wheel side, the whole assembly must be changed.
Q Step 2: Support the rear of the car on axle stands so that
the suspension hangs free. Remove the road wheels.
• Step 3: Remove the exhaust system. See PART F: FUEL
AND EXHAUST, Job 14.
• Step 4: Remove the fuel tank. See PART F: FUEL AND
EXHAUST, Job 10
• Step 5: Disconnect the brake pipes from the four-way
union and plug the ends to prevent excessive fluid loss.
Q Step 6: Slacken the cable adjustment under the
handbrake lever and disconnect the rear cable ends from the
equaliser. See PART H: BRAKES, Job 18
/ • Step 7: • Using a trolley
jack under the rear end of
the trailing arm to be
removed, compress the spring enough to undo the
mounting nuts and remove the shock absorber.
• Slowly lower the jack and remove the spring. This
allows you to use the weight of the car to help you
compress the spring
-
a difficult task otherwise!
Q Step 16: Press the hub into
the bearing, pushing ONLY on the
inner track with a suitable piece of
strong tube (1).

Job 12. Pressure regulating valve,
non-ABS system - replacement
and adjustment.
• Step 9: Bleed the brakes, see Job
17

139
-8
The pressure regulating valve is also known as the load
proportioning valve.
[G Step 1: Position the car on ramps, over a pit or on a lift,
keeping the weight on the rear wheels.
• Step 2: Remove the handbrake cable from its support
bracket on the fuel tank...
• Step 3: ...and
remove the support
bracket for the rear
exhaust section for better
access.
• Step 4: Undo all the
pipe unions on the
regulating valve using
split ring spanners where
possible, to avoid
damage. Plug the ends
of the pipes and catch
any fluid that drains out.
Unhook the spring
(arrowed) from the
mounting bracket.
Q Step 5: Undo the fixing belts and remove the valve
assembly.
• Step 6: Mount the new unit, remake all hydraulic
connections and connect the spring. Note that, if the valve
does not work properly, it cannot be repaired but must be
replaced.
• Step 7: Place a load of 60 kg with a full fuel tank, or 90
kg with an empty fuel tank, as far forward as possible in the
boot.
• Step 4: Prise
off the sound
proofing plate
stud with a screw-
driver (1, which
cannot be re-
used) and
unscrew the stud
(2). Move the
plate (3) to one
side, to give
access to the
servo retaining
nuts.
• Step 5:
Remove the split

pin
and
disconnect the
servo rod from
the brake pedal.
G Step 6: Move
the sound
proofing plate
sufficiently to
remove the servo
mounting nuts
(three
-
arrowed;
one being
unscrewed by a
socket extension).
G Step 7: From
under the bonnet,
withdraw the
servo from the
bulkhead.
G Step 9: Adjust the nut as
necessary to achieve this
setting measuring through
the aperture in the front
cover, from inside the engine
bay.
G Step 10: Continue re-
assembly in reverse order.
G Step 8:
When refitting the
servo to the
bulkhead and
with the pushrod
(a) connected to
the brake pedal,
the gap between
the piston control
rod adjusting nut
(b) and the master
cylinder mounting
flange should be
between 22.45
and 22.65 mm.
22.45-22.65 mm
• Step 8:
• Loosen the
bracket
retaining screw
(1).
• Apply a
downwards
force to the
bracket eye (2)
of 55 Nm for all
models except
the 1600
automatic
petrol and 1900
turbo diesel which should be 30 Nm.
• Keeping the bracket (3) in position. Tighten the retaining
screw (1).

Job 13. Pressure regulating
valves, ABS system - replacement
and adjustment.
Job 14. RPM sensors, ABS
systems - replacement.
H INSIDE INFORMATION! The RPM sensors align with
the flywheels (which look like toothed rings) and which
rotate with the road wheels. The sensors measure the
vehicle's running speed, acceleration, deceleration and
wheel creep. These signals are sent to the electronic
control unit and allow it to instruct the hydraulic control
unit to vary the brake fluid pressure to each wheel as
necessary to prevent the brakes from locking up. E3
• Step 1: This
is the position of
the front wheel
sensor (a)...
• Step 2: ...and
this is the position
of the rear wheel
sensor (arrowed).
H INSIDE INFORMATION! FIAT advise that no adjust-
ments can be made, so, if the gap is outside these values,
clean and check the condition and the seating of the
sensor and the condition of the flywheel. D
L_l Step 4: To remove the sensor, undo the fixing screw and
withdraw the sensor from its housing, then trace the wire to
the connector and unplug it.
• Step 5: Clean round the housing and fit the new sensor,
ensuring that it is properly seated.
O Step 6: Secure the wire along its route to the connector
and plug in.
• Step 1: Position the car over a pit or on a lift with the
weight still on the wheels. Locate the valves
-
one on each
suspension trailing arm.
• Step 2: Undo
the brake pipe
unions (a) using
(preferably) a split
ring spanner and
plug the ends of
the pipes. Remove
the two upper
securing bolts
shown here
• Step 3: Take out the
lower two bolts and
remove the valve.
• Step 4: Install the
new valve and connect
the brake pipes.
• Step 5: With the car
at its normal weight
including spare wheel
and fuel, add a load of 50
kg to the boot as far
forward as possible.
• Step 6:
• Loosen the
bracket fixing bolt
(1).
• Hang a weight
of 2 kg from the
bracket eye (2).
• Keep the
bracket in this
position while you
tighten and lock
the fixing bolt (1).
Q Step 7: Repeat this adjustment on the other side to
ensure equal braking.
• Step 8: Bleed the brakes. See Job
17

• Step 3:
Check the gap
between the end
of each sensor and the flywheel, at the front (see illustration
Job
14-1,
part b) and at the rear. The correct gap should be:
• 1400/1600 petrol
-
between 0.62 and 1.35 mm, both front
and rear.
• 1900 turbo Diesel
-
between 0.225 and 0.925 mm for the
fronts and between 0.13 and 1.27 mm for the rears.

gjpjgjjl 'READING' YOUR SPARK PLUGS
Champion explain how the condition of spark plug firing ends can act as a guide to the state of tune and general condition of the engine. The examples shown are assumed to be the correct grade for the engine.
NORMAL
Core nose lightly coated with grey-brown deposits. Electrodes not burning unduly
-
gap increasing by about 0.01 mm every 1,000 miles approximately (with the use of unleaded fuel). Spark plugs correct for engine.
OIL FOULING
Deposits can short-circuit firing end, weakening or eliminating spark. Causes: worn valve guides, bores or piston rings, or while new engine is running-in. Replace spark plugs. Cure oiling problem.
SPLIT CORE NOSE
(May first appear as hair-line-crack). Probably caused by: Over-advanced ignition timing. Faulty distributor advance mechanism. Use of low octane fuel. Weak mixture. Manifold air-leaks. Cooling system problems. Incorrect gap-setting technique.
HEAVY DEPOSITS
Possible causes: Fuel or oil additives. Excessive upper cylinder lubricant. Worn valve guides. Unvarying speed (stationary engine). Replace spark plugs.
OVERHEATING
Likely causes are: Over-advanced ignition timing, or faulty distributor advance mechanism. Use of low octane fuel. Weak mixture. Discard spark plugs showing signs of overheating, and cure the cause.
CARBON FOULING
Look for dull black sooty deposits. (Unleaded fuel carbon fouling can appear similar to oil fouling). Deposits can short circuit the firing end, weakening or eliminating the spark. Check for: Over-rich mixture, faulty choke or clogged air filter. Replace spark plugs.
INITIAL PRE-IGNITION
Caused by serious overheating. Causes are those listed for overheating, but may be more severe. Corrective measures are urgently needed before engine damage occurs. Discard plugs in this condition.
FACT FILE: CORRECT INSTALLATION
• Make sure seating areas are perfectly clean.
• Insert plug finger tight to seat. Ensure plug 'spins' freely.
• PLUGS WITH SEATING GASKET: Tighten to relevant torque setting.
• PLUGS WITH TAPER SEATS: Tighten a further l/16th turn ONLY - no further!
• Overtightening can damage cylinder head or make taper seat plugs impossible to remove.
RECOMMENDED FL LUBRICANTS
FOR YOUR FIAT TIPO ARID TEMPRA
COMPONENT/ TIPO & TEMPRA TIPO SELECTA & TEMPRA SELECTA TIPO & TEMPRA DIESEL CAPACITY 1.4 and 1.6 1.6 and 1.6 i.e. 1.7 D, 1.9 Dand 1.9 TD
ENGINE SELENIA 20K SELENIA 20K SELENIA TURBO DIESEL CAPACITY 3.8 L 3.8 L/4.2 L 5.0 L
MANUAL TRANSMISSION TUTELA ZC80/S -TUTELA ZC80/S CAPACITY 2.0 L -2.0 L
AUTOMATIC TRANSMISSION -TUTELA CVT -CAPACITY -3.5 L (a) -
DIFFERENTIAL(S) FROM GEARBOX FROM GEARBOX FROM GEARBOX CAPACITY ---
STEERING BOX TUTELA K854 TUTELA K854 TUTELA K854 CAPACITY 80 g (b) 80 g (b) 80 g (b)
CONSTANT VELOCITY JOINTS TUTELA MRM2 TUTELA MRM2 TUTELA MRM2 CAPACITY 95 g (each) 95 g (each) 95 g (each)
BRAKE FLUID RESERVOIR TUTELA PLUS 3 TUTELA PLUS 3 TUTELA PLUS 3 CAPACITY (NON-ABS) 0.40
L
(c) 0.40 L (c) 0.40
L
(c)
COOLANT PARAFLU 11 PARAFLU 11 PARAFLU 11 CAPACITY 6.5 L(d) 6.5 L(d) 8.8
L
(d)
WINDSCREEN WASHER TANK AREXONS DP1 AREXONS DP1 AREXONS DP1 CAPACITY 5.0 L 5.0 L 5.0 L
NOTES: (a) DRAIN/REFILL CAPACITY (b) IF MODEL FITTED WITH POWER ASSISTED STEERING USE 0.75 L TUTELA Gl/A (c) IF ABS BRAKING IS FITTED USE 0.52 L TUTELA TOP 4 (d) COOLING SYSTEM AT A CONCENTRATION OF 50% COOLANT TO 50% WATER
CHANGE PERIODS: See Chapter 5, Service Intervals
154

IMPORTANT NOTE: Not all of the components listed here are fitted to all models.
CHAPTER 7
WIRING DIAGRAMS
IMPORTANT NOTE: Not all of the components listed here
are fitted to all models.
IMPORTANT NOTES:
3. We have sometimes shown the wiring diagram for a
'highest' spec, model, in the knowledge that 'lower'
spec, models are usually similar with the deletion of
certain components.
1. There are several hundred FIAT wiring diagrams for
the whole TIPO range. This is a representative selection,
covering the majority of applications. However, in the
event that your car's details are not covered here,
consult your nearest FIAT dealer.
2 All of the following are Tipo wiring diagrams. Tempra
saloons and estates are essentially similar.
4. 'EEC Stage 2 Engines' In late 1994, Tipo 1.4 and 2 -
Litre and Tempra 1.6 MPI vehicles were modified to suit
new emission regulations. These changes were NOT only
engine-related. Vehicles covered by this manual are Tipo
1.4 (with engine code no. 836A4.000) and Tempra 1.6
(with engine code 159B9.000). See Page 27 for location
of codes.
KEY:
1 Left front light cluster 2 Reversing light switch 3a Left horn 4 Electric cooling fan 5 Dual contact coolant thermal switch 6 Right longitudinal cable connection 7 Right front earth 8 Right front light cluster 9 Right horn 10 Screen/rear window washer pump 11 Left brake pad wear sensor 11A Right brake pad wear sensor 12 Ignition coil 12A Ignition coil with power module 12B Ignition coil with H.T. points 13 Digiplex electronic ignition control unit 13A Digiplex electronic ignition lead connection 13C Diagnostic socket for Digiplex electronic ignition 14 Left front earth 15 Battery earth 16 Engine coolant temperature sender unit 17 Battery 18 Ignition distributor 19 Sparkplug 20 Spark plug 21 Sparkplug 22 Spark plug 23 TDC sensor 24 Alternator 25 Oil pressure switch 26 Connector block 27 Brake fluid level sensor 28 Left side turn signal 30 Idle cut-out device 31 Starter motor 32 Throttle valve sensor 33 Pulse generator for speedometer signal 34 Windscreen wiper 35 Right side turn signal 36 P.T.C. resistor for heating fuel duct 37 Thermal switch for PTC 38 Vacuum sensor for vacuum gauge 39 Fuse and relay control unit E2 Turn signal and hazard warning light flasher E4 Fog light relay E5 Horn relay E6 Heated back window relay E7 Switch discharge connector E9 Windscreen wiper intermittent function E10 Rear fog light relay E11 Dipped beam relay E12 Main beam relay E13 Side light control relay E14 Central locking electronic control unit E1-E3-E8-E15-available (unused)
40 PTC resistor activation relay 41 20A fuse for inlet duct heater circuit 42 25A fuse for electric window ECU 43 Junction between facia cable and heater cable 44 Earth on left hand side of facia 45 Junction between facia cable and left front door
G Horn button H Windscreen wiper stalk I Back window wash/wipe selector L Heated rear windscreen switch M Rear screen wash/wipe switch N Windscreen wiper speed switch cables 56 Junction: facia cable and r.h. rear door cables Electric window control unit 57 Glove compartment light bulb Provision for left front speaker 58 Facia cable coupling with right front door cables Provision for left rear speaker 59 Facia cable coupling with right front door cables Supplementary earth point 60 Provision for right front speaker Instrument panel 60A Provision for right rear speaker A Direction indicators warning light 61 L.h. button for courtesy light and electric window B Side lights warning light 62 Junction between rear cable and left rear door C Main beam headlights warning light cables D Heated rear windscreen warning light 63 Junction between rear cable and left front door E Rear fog lights warning light cables E1 Fog lights warning light 64 Left front door lock motor and left front door F Hazard warning lights warning light open warning light G Battery recharging warning light 65 Left front electric window motor H Insufficient engine oil pressure warning light 66 Electric front window control buttons I Trip counter 67 Cigar lighter J Left brake lining wear warning light 68 Braking light switch J1 Seat belt undone warning light 69 Passenger compartment courtesy light K Handbrake on and low brake fluid level 69A Passenger compartment courtesy light with door warning light lock remote control receiver L Choke warning light 70 Hand brake warning light switch M ABS failure warning light 71 Passenger compartment ventilation fan switch N Instrument panel light bulbs 71A Passenger compartment ventilation control 0 Fuel level gauge 72 Passenger compartment ventilation fan speed P Coolant temperature gauge regulation resistor P1 Engine oil pressure gauge 73 Passenger compartment ventilation fan P2 Engine oil temperature gauge 74 Heater controls light bulbs Q Clock 75 Right front door lock motor and right front door R Heater plugs warning light open warning light S Speedometer 76 Right front electric window motor S1 Speed warning light 77 Right front electric window control button T Rev counter 78 R.h. button for courtesy lights and window U Trailer turn signal warning light 79 Luggage compartment lighting X Water in fuel filter warning light 80 Left rear earth Y Excessive turbocharging air pressure warning 80A Right rear earth light 81 Rear cable connection Y1 Lambda probe failure warning light 82 Left tail-light cluster Z Excessive automatic transmission fluid 83 Left rear door lock motor temperature warning light 84 Fuel level gauge Z1 Injection system failure warning light 85 Tailgate lock/release motor Ignition switch 86 Left number plate light Available for radio 87 Right number plate light Available for radio 88 Rear window wiper motor Hazard warning lights switch 89 Heated rear windscreen Stalk unit 90 Right tail-light cluster A Rear fog lights switch 91 Right rear door lock motor B Exterior lighting selector 92 Glow plug preheating system ECU c Control lighting bulb 93 Glow plugs D Light flasher button 94 Engine cooling fan first speed additional resistor E Turn signal stalk 95 30A fuse for engine cooling fan F Dipped/main beam headlight selector 96 Switch for automatic advance
155

97 Solenoid for automatic cold-start advance device 160 Potentiometer 270 Front cable connection (K.S.B.) 161 Junction between engine lead and facia leads for 271 Maximum turbo boost pressure warning light 98 Engine cut out solenoid on injection pump SPI system switch 99 Cooling fan second speed activation relay 161A Engine lead connection for IAW injection system 272 Front cable connection 100 Fuel pump facia lead connection 163 Bosch SPI electronic injection control unit 273 Front cable connection 101 Electromagnetic sensor for rpm sensor 163A Bosch SPI ignition/injection ECU 274 Front cable connection 102 Turbocharger air pressure switch 164 Diagnostic socket (S.P.I.) 281 Left-hand brake lining connection cable joint 104 10A fuse for ABS device 165 Electric fuel pump 281A Right-hand brake lining connection cable joint 105 Connection for anti-lock brake circuit (Antiskid) 166 Hot Lambda probe 282 CO regulation potentiometer 106 Left hand brake lining wear sensor lead 167 Step motor 286 Electromagnetic sensor on flywheel connection 171 Air temperature sender unit 287 Seat belt undone indicator switch 107 Cut-off control module 173 Throttle position sensor 288 Headlight washer intermittent function 108 Cable connection for air conditioner 174 Absolute pressure sender unit 292 Earth for anti-lock brake system (A.B.S.) 109 Front cable connection 180 Rem. contr. switch for legally specified system 293 Earth for air conditioner fan 111 Electric window ECU supply lead connection 181 Daylight side light remote control switch 294 Facia lead connection 112 Sensor on left front wheel 182 Daylight side light remote control switch 295 Connection between facia cable and rear cable 113 Sensor on right front wheel 184 Power earth 297 EGR device ECU 114 Sensor on left rear wheel 185 Electronic earth 298 Diagnostic socket for EGR device 115 Sensor on right rear wheel 186 Electric sun-roof ECU 299 EGR device control solenoid 116 Hydraulic control unit (A.B.S.) 187 Electric sun-roof circuit connection 300 EGR coolant temperature recording sensor 117 ABS control relay 188 Electric sun-roof end-stop sensor microswitch 301 Potentiometer on injection pump 118 Anti-lock brakes electronic control unit (A.B.S.) 189 Sun-roof operating motor 302 Sensor connection cable junction 119 Device for heated filter 190 Safety pressure switch 303 Low engine oil level indication sensor 120 Heated filter device relay 199 IAW multiple relay 304 Low coolant level indication sensor 121 20A fuse for heated filter device 200 Earth on hydraulic control unit bracket 305 Low washer fluid level indication sensor 122 Device for detecting presence of water in fuel filter 200A IAW injection/ignition ECU bracket earth 306 Oil temperature indication sensor 123 Left fog light 207 Starter enablement relay 307 Oil pressure indication sensor 124 Right fog light 208 Switch on gearbox indicating reverse or neutral 308 Junction with coolant temperature sender unit 125 Connection between front cable and fog light 209 Switch on gear selector leads cables 210 Automatic transmission speed selection ECU (CTX) 311 Front cable connection 126 Fog light switch 211 Parking not engaged warning light 312 Front cable connection 127 Sun-roof activation switch 214 Automatic transmission lead connection 313 Junction between facia lead and legally-specified 129 Electric door mirror control switch 215 T.D.C. AND RPM SENSOR (I.A.W.) leads 130 Electrically-adjustable and heated right-hand door 216 Injection/ignition ECU I.A.W. 314 Relay for legally-specified system mirror 219 1st injector 316 60A fuse for air conditioning system 130-A Electrically-adjustable and heated left-hand door 220 2nd injector 317 40A fuse for air conditioner system mirror 221 3rd injector 318 Diagnostic socket for IAW injection system 131 Left headlight wiper motor 222 4th injector 319 Automatic transmission device display 132 Right headlight wiper motor 224 15A fuse for injectors (Volkswagen) 133 Headlight washer pump 225 Idle speed control solenoid A Economy warning light 135 Left front seat heat pads 226 Provision for air conditioner B Sporty drive warning light 135A Right front seat heat pads 228 Ignition distributor with timing sensor 320 Right rear earth for automatic transmission 136 Air conditioner cable connection 231 Coupling with injection lead (Volkswagen) 137 Air conditioner cable connection 241 Automatic transmission electronic control unit 327 Junction with injector cable 138 Air conditioning system compressor (Volkswagen) 328 Advance cut out heat switch 139 Three stage pressure switch 242 Automatic trans, lead connection (Volkswagen) 329 Remote control switch for shifting advance curve 141 Air Recirculation/outside air intake control motor 243 Automatic trans, lead connection (Volkswagen) 330 Negative battery lead connection 142 Air conditioning system switch 244 ECU for decoding speed selector lever position 331 Prewired engine lead connection 143 Outside air/recirculation switch 245 Solenoid unit on transmission 332 Right hand rod lead connection 146 Air conditioning system ECU 246 Diagnostic connection for automatic transmission 333 Right front seat heating control switch A 40A fuse for engine cooling fan (Volkswagen) 334 Right front seat heating activated warning light B 30A fuse for interior ventilation fan and air 247A Automatic transmission lead connection 335 20A fuse for headlight washer system recirculation motor (Volkswagen) with I.A.W. injection system 336 Air conditioning system switch cable connection C 15A fuse for compressor 248 Automatic transmission lever lock solenoid 337 Ignition coil (1-4) D Interior ventilation fan and air recirculation 249 Kick-down switch 338 Ignition coil (2-3) motor relay 250 Rpm electromagnetic sensor E Compressor dual contact relay 251 Car speed electromagnetic sensor N.D. Connector block welded with ultrasound (band in F Cooling radiator fan first speed relay 252 Multifunction switch unit wiring harness) H Relay for compressor activation 253 Sporty drive switch I Timer for engine cooling fan 261 Junction between facia cable and right rear door Wiring colours: 147 Fast idle valve cables 148 Additional resistor for DIM-DIP circuit 262 Facia lead connection A Light blue 149 DIM-DIP circuit relay 263 Check-panel display B White 150 7.5A fuse for DIM-DIP circuit A Front side light failure warning light C Orange 151 Fuel pump control relay B Driver side front door open warning light G Yellow 152 SPI ECU and injector supply relay C Driver side rear door open warning light H Grey 152A Injector control contactor D Tail-gate open warning light L Blue 153 NA fuel vapour cut-off solenoid E Passenger side rear door open warning light M Brown 154 NC fuel vapour cut-off solenoid F Passenger side front door open warning light N Black 155 10A fuse for fuel pump G Rear side light failure warning light R Red 155A 25A fuse for fuel pump and injectors H Rear fog light failure warning light S Pink 156 Injector and air temperature sensor 1 Right brake light failure warning light V Green 157 Resistor L Number plate light failure warning light z Violet 158 10A fuse for Lambda probe M Left brake light failure warning light 158 5A fuse for I.A.W. ECU 264 Recharging indicator cable connection Most wires have two colours, shown as, for example, 159 Coolant temperature sender unit 269 Air conditioning cable connection CN, which means Orange and Black.

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Diagram 1: Model: 1372S
-
Starter
-
Electronic Ignition and Fuel Injection (Bosch Monomotronic SPI)
-
Charging System and
Warning Light
-
Oil Pressure Warning Light
-
Fuel Injection Fault Warning Light