SKODA ROOMSTER 2008 – 1.9 ltr. – TDI with Unit injector /77 kW, Engine identification characters BLS, As of April 2007 . Wiring diagrams, Pin Connector, Location

Wiring Diagram SKODA ROOMSTER 2008 - Starter - Alternator - Radiator fan thermal switch - Radiator fan - Fuse holder A on the battery

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition starter switch
F18	Radiator fan thermal switch
J519	Vehicle voltage control unit
SA1	Fuse 1 on fuse holder A
SA6	Fuse 6 on fuse holder A
SA8	Fuse 8 on fuse holder A
T2w	2-pin connector, in the holder on the gearbox
T3e	3-pin connector, in the holder on the left radiator
T3h	3-pin connector, on radiator fan thermal switch
T8a	8-pin connector, at ignition starter switch
T18a	18-pin connector, at onboard supply control unit (brown)
V7	Radiator fan
672	Earth point 2 at front left longitudinal member
B344	Connection 1 (61) in main wiring harness
	Radiator fan thermal switch and radiator fan depending upon optional equipment (not valid for vehicles with Climatic / Climatronic)

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit

J519	Vehicle voltage control unit
J623	Engine control unit
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T94a	94-pin connector, at engine control unit
12	Earth point on left in engine compartment
281	Earth connection 1 in engine wiring harness
376	Earth connection 11 in main wiring harness
B278	Positive connection 2 (15a) in main wiring harness
B353	Positive connection 4 (87a) in main wiring harness
*	for vehicles with extended servicing intervals (ESI)
**	Optional equipement

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Automatic glow period control unit - Glow plug

J179	Automatic glow period control unit
J519	Vehicle voltage control unit
J623	Engine control unit
Q10	Glow plug 1
Q11	Glow plug 2
Q12	Glow plug 3
Q13	Glow plug 4
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T94a	94-pin connector, at engine control unit
377	Earth connection 12 in main wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Accelerator pedal position sender - Brake light swith - Brake pedal switch - Clutch pedal switch

F	Brake light switch
F36	Clutch pedal switch
F47	Brake pedal switch
G79	Accelerator pedal position sender
G185	Accelerator pedal position sender 2
J519	Vehicle voltage control unit
J623	Engine control unit
T4d	4-pin connector, at brake pedal switch
T4h	4-pin connector, at clutch pedal switch
T6u	8-pin connector, at accelerator pedal position sender
T94a	94-pin connector, at engine control unit
B335	Connection 1 (54) in main wiring harness
B350	Positive connection 1 (87a) in main wiring harness
B633	Connection (brake pedal switch) in main wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Coolant temperature sender - Fuel temperature sender - Charge pressure control solenoid valve - Exhaust gas recirculation cooler change-over valve

F268	Additional heating heater element contact switch
G62	Coolant temperature sender
G81	Fuel temperature sender
J519	Vehicle voltage control unit
J623	Engine control unit
N75	Charge pressure control solenoid valve
N345	Exhaust gas recirculation cooler change-over valve
T8s	8-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T10d	10-pin connector, behind right dash panel
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T16c	16-pin connector on the heating and fresh air control
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
474	Earth connection (sender earth), in engine wiring harness
B352	Positive connection 3 (87a) in main wiring harness
B441	Connection (CCS) in main wiring harness
*	not valid for vehicles with Climatronic
**	for vehicles with CCS
	for vehicles with additional air heater

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Engine speed sender - Hall sender - Air mass meter - Charge pressure sender - Intake air temperature sender

G28	Engine speed sender
G31	Charge pressure sender
G40	Hall sender
G42	Intake air temperature sender
G70	Air mass meter
J519	Vehicle voltage control unit
J623	Engine control unit
T3j	3-pin connector, at Hall sender
T3m	3-pin connector, at engine speed sender
T4an	4-pin connector, at charge pressure and intake air temperature sender
T5b	5-pin connector, at air mass meter
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
B369	Connection 1 (5V), in main wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Unit injector solenoid valve

J519	Vehicle voltage control unit
J623	Engine control unit
N240	Unit injector solenoid valve of No. 1 cyl.
N241	Unit injector solenoid valve of No. 2 cyl.
N242	Unit injector solenoid valve of No. 3 cyl.
N243	Unit injector solenoid valve of No. 4 cyl.
T8o	8-pin connector, at cylinder head
T16b	16-pin connector, at onboard supply control unit (black)
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
B383	Connection 1 (drive train CAN bus High) in main wiring harness
B390	Connection 1 (drive train CAN bus Low) in main wiring harness
B625	Connection (diagnosis wire K), in main wiring harness
G7	Positive connection (unit injector valves) in cylinder head wiring harness
G8	Positive connection (unit injector valves) in engine wiring harness
	for vehicles with additional air heater

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Lambda probe - Heating resistor for crankcase ventilation

G39	Lambda probe
J519	Vehicle voltage control unit
J623	Engine control unit
N79	Heating resistor for crankcase ventilation
T6aj	6-pin connector for lambda probe (black), on right in engine compartment
T94a	94-pin connector, at engine control unit
Z19	Lambda probe heater
**	Optional equipement

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Exhaust gas recirculation valve - Exhaust gas recirculation potentiometer - Exhaust gas recirculation control motor

G212	Exhaust gas recirculation potentiometer
J519	Vehicle voltage control unit
J623	Engine control unit
N18	Exhaust gas recirculation valve
T6ak	6-pin connector, on exhaust gas recirculation control motor
T60a	60-pin connector, at engine control unit
V338	Exhaust gas recirculation control motor
250	Earth connection in engine wiring harness, diesel
D141	Connection (5V) in engine wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Intake manifold flap motor - Oil level and oil temperature sender

G266	Oil level and oil temperature sender
J519	Vehicle voltage control unit
J623	Engine control unit
T3f	3-pin connector at oil level and oil temperature sender
T5g	5-pin connector, at intake manifold flap motor
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T60a	60-pin connector, at engine control unit
V157	Intake manifold flap motor
250	Earth connection in engine wiring harness, diesel
D141	Connection (5V) in engine wiring harness
*	for vehicles with extended servicing intervals (ESI)

Wiring Diagram SKODA ROOMSTER 2008 - Engine control unit - Exhaust gas temperature sender 1 - Exhaust gas temperature sender 2 for bank 1 - Exhaust gas pressure sensor 1 - Temperature sender downstream particle filter

G235	Exhaust gas temperature sender 1
G448	Exhaust gas temperature sender 2 for bank 1
G450	Exhaust gas pressure sensor 1
G527	Temperature sender downstream particle filter
J519	Vehicle voltage control unit
J623	Engine control unit
T2d	2-pin connector for exhaust gas temperature sender 1 (black), on right in engine compartment
T2e	2-pin connector for exhaust gas temperature sender 2 for bank 1 (brown), on right in engine compartment
T2f	2-pin connector for temperature sender downstream particle filter (orange), on right in engine compartment
T3k	3-pin connector, at exhaust gas pressure sensor 1
T8s	8-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T60a	60-pin connector, at engine control unit
T94a	94-pin connector, at engine control unit
411	Earth connection 2 (sender earth) in main wiring harness
474	Earth connection (sender earth), in engine wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Low heat output relay - High heat output relay - Heater element for additional air heater - Fuse holder A on battery

J359	Low heat output relay
J360	High heat output relay
J519	Vehicle voltage control unit
SA3	Fuse 3 on fuse holder A
SA12	Fuse 12 on fuse holder A
T3n	3-pin connector, behind dash panel (at heater element for additional air heater)
Z35	Heater element for additional air heater
687	Earth point 1 on the middle tunnel
B350	Positive connection 1 (87a) in main wiring harness
B636	Connection (additional heater) in main wiring harness
	for vehicles with additional air heater

Wiring Diagram SKODA ROOMSTER 2008 - Fuse holder B

J519	Vehicle voltage control unit
SB1	Fuse 1 on fuse holder B
SB3	Fuse 3 on fuse holder B
SB5	Fuse 5 on fuse holder B
SB7	Fuse 7 on fuse holder B
SB8	Fuse 8 on fuse holder B
SB21	Fuse 21 on fuse holder B
SB46	Fuse 46 on fuse holder B
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
B273	Positive connection (15) in main wiring harness
B278	Positive connection 2 (15a) in main wiring harness
B315	Positive connection 1 (30a) in main wiring harness
*	for vehicles with extended servicing intervals (ESI)

Wiring Diagram SKODA ROOMSTER 2008 - Fuse holder B

J519	Vehicle voltage control unit
SB28	Fuse 28 on fuse holder B
SB29	Fuse 29 on fuse holder B
SB30	Fuse 30 on fuse holder B
SB31	Fuse 31 on fuse holder B
SB32	Fuse 32 on fuse holder B
SB33	Fuse 33 on fuse holder B
SB34	Fuse 34 on fuse holder B
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
B275	Positive connection (87) in main wiring harness
B352	Positive connection 3 (87a) in main wiring harness
**	Optional equipement

Wiring Diagram SKODA ROOMSTER 2008 - Fuel pump relay - Diesel direct injection system relay

J17	Fuel pump relay
J322	Diesel direct injection system relay
J519	Vehicle voltage control unit
B275	Positive connection (87) in main wiring harness
B317	Positive connection 3 (30a) in main wiring harness
B634	Positive connection 2 (87) in main wiring harness

Wiring Diagram SKODA ROOMSTER 2008 - Dash panel insert - Control unit in dash panel insert - Warning lights - Oil pressure switch - Fuel gauge sender - Fuel pump for predelivery - Fuel gauge - Speedometer - Odometer display

F1	Oil pressure switch
G	Fuel gauge sender
G1	Fuel gauge
G6	Fuel pump for predelivery
G21	Speedometer
J285	Control unit in dash panel insert
J519	Vehicle voltage control unit
K	Dash panel insert
K3	Oil pressure warning light
K29	Glow period warning light
K38	Oil level warning light
K83	Exhaust emissions warning lamp
K105	Fuel reserve warning light
K231	Diesel particle filter warning light
T4f	4-pin connector, on the fuel pump for predelivery
T14a	14-pin connector in engine compartment, left (connection engine wiring harness / main wiring harness)
T32a	32-pin connector, at dash panel insert
Y4	Odometer display
370	Earth connection 5 in main wiring harness
410	Earth connection 1 (sender earth) in main wiring harness
B464	Connection (speed signal) in main wiring harness
*	for vehicles with extended servicing intervals (ESI)