VW POLO 2013 – Auxiliary heater, 1.9 l – SDI/47kW, engine code ASY . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW POLO 2013 - Battery - starter - alternator - voltage regulator - onboard supply control unit

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
F18	Radiator fan thermal switch
J519	Onboard supply control unit
S162	Fuse 1 (30) in fuse holder on battery
S163	Fuse 2 (30) in fuse holder on battery
S180	Fuse 8 (30) in fuse holder on battery
S269	Fuse 11 (30) in fuse holder on battery
T1e	Single pin connector, on starter
T2r	2-pin connector, near dual tone horn
T2s	2-pin connector, on alternator
T3t	3-pin connector, on radiator fan thermal switch
T6k	6-pin connector, in left engine compartment
T11b	11-pin connector, in left engine compartment
T12a	12-pin connector, in left engine compartment
T18a	18-pin connector, on onboard supply control unit
1	Earth strap, battery - body
507	Screw connection (30), on fuse holder on battery
621	Earth point, on onboard supply battery

Wiring Diagram VW POLO 2013 - Ignition/starter switch - onboard supply control unit

D	Ignition/starter switch
E19	Parking light switch
J519	Onboard supply control unit
SA8	Fuse 8 on fuse holder A
SA10	Fuse 10 on fuse holder A
SA16	Fuse 16 on fuse holder A
T6t	6-pin connector, on onboard supply control unit
T8c	8-connector, on ignition/starter switch
T18a	18-pin connector, on onboard supply control unit
T41a	41-pin connector, on turn signal switch
B162	Connection (75a), in interior wiring harness
B163	Positive connection 1 (15), in interior wiring harness
B172	Positive connection 4 (30), in interior wiring harness

Wiring Diagram VW POLO 2013 - X-contact relief relay - diesel direct injection system relay - onboard supply control unit - fresh air blower

J52	Glow plug relay
J59	X-contact relief relay
J322	Diesel direct injection system relay
J519	Onboard supply control unit
J623	Engine control unit
SA36	Fuse 36 on fuse holder A
T2bq	2-pin connector, on fresh air blower
T6au	6-pin connector, on glow plug relay
T6b	6-pin connector, in left engine compartment
T6o	6-pin connector, on X-contact relief relay
T9d	9-pin connector, on diesel direct injection system relay
T10d	10-pin connector, behind right dash panel
T18a	18-pin connector, on onboard supply control unit
V2	Fresh air blower
238	Earth connection 1, in interior wiring harness
329	Earth connection 1, in blower box wiring harness
606	Earth point, under the centre console near selector lever
B147	Positive connection 2 (87), in interior wiring harness
B491	Positive connection (75), in interior wiring harness
B493	Connection (75x), in interior wiring harness

Wiring Diagram VW POLO 2013 - Fresh air blower switch - heater control unit - fresh air blower series resistor with overheating fuse - fresh air blower - fresh air and air recirculation flap control motor

E9	Fresh air blower switch
E159	Fresh air/air recirculation flap switch
F268	Auxiliary heating heater element contact switch
J162	Heater control unit
J519	Onboard supply control unit
J623	Engine control unit
K114	Fresh air and air recirculation warning lamp
L16	Fresh air regulator illumination bulb
N24	Fresh air blower series resistor with overheating fuse
T4an	4-pin connector, on fresh air blower series resistor with overheating fuse
T5o	5-pin connector, on fresh air blower switch
T6ay	6-pin connector, on fresh air and air recirculation flap control motor
T10d	10-pin connector, behind right dash panel
T11c	11-pin connector, in left engine compartment
T16h	16-pin connector, on auxiliary heating heater element contact switch
V154	Fresh air/recirculated air flap control motor
L77	Connection, in fresh air blower wiring harness

Wiring Diagram VW POLO 2013 - Low heat output relay - high heat output relay - onboard supply control unit

J359	Low heat output relay
J360	High heat output relay
J519	Onboard supply control unit
J623	Engine control unit
T3c	3-pin connector, in left engine compartment
T6av	6-pin connector, on high heat output relay
T9b	9-pin connector, on low heat output relay
T11c	11-pin connector, in left engine compartment
B169	Positive connection 1 (30), in interior wiring harness
B170	Positive connection 2 (30), in interior wiring harness
B171	Positive connection 3 (30), in interior wiring harness
B188	Positive connection 5 (30), in interior wiring harness

Wiring Diagram VW POLO 2013 - Onboard supply control unit - auxiliary heater element

J519	Onboard supply control unit
S276	Heater element fuse 1
S277	Heater element fuse 2
S278	Heater element fuse 3
T3q	3-pin connector, on auxiliary air heater element
T5f	5-pin connector, on onboard supply control unit
T6c	6-pin connector, on onboard supply control unit
Z35	Auxiliary heater element
249	Earth connection 2, in interior wiring harness
278	Earth connection 4, in interior wiring harness
296	Earth connection 11, in interior wiring harness
606	Earth point, under the centre console near selector lever
B116	Connection (58d), in interior wiring harness
B148	Positive connection 3 (87), in interior wiring harness

Wiring Diagram VW POLO 2013 - Onboard supply control unit

J519	Onboard supply control unit
SA18	Fuse 18 on fuse holder A
SA26	Fuse 26 on fuse holder A
T16b	16-pin connector, on onboard supply control unit
T16e	16-pin connector, near relay station, self-diagnosis connection
T18a	18-pin connector, on onboard supply control unit
B159	Connection (diagnosis), in interior wiring harness
B608	Connection 4, in interior wiring harness

VW POLO 2013 Engine control unit (80-pin) J623

–	near battery -arrow-

 

Designation of connector:

A -	Engine control unit -J623-

B/C -

80-pin connector, on engine control unit -T80a-

–  near battery -arrow-

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Designation of connector:

A -	Engine control unit -J623-

B/C -

121-pin connector, on engine control unit -T121a-

–  in engine compartment, bottom left -arrow-

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Designation of connector:

A -	Radiator fan control unit -J293-

B -	6-pin connector, on radiator fan control unit -T6ak-

C -	4-pin connector, on radiator fan control unit -T4aa-

–  in engine compartment, left -arrow-

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Designation of connector:

A -	Automatic gearbox control unit -J217-

B -	68-pin connector, on automatic gearbox control unit -T68a-

–  in engine compartment, centre -arrow-

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Designation of connector:

A -	Automatic gearbox control unit -J217-

B/C -

80-pin connector, on automatic gearbox control unit -T80b-

–  behind the door trim, front left -arrow-

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Designation of connector:

A -	Driver door control unit -J386-

B -	6-pin connector, on control unit driver door -T6y-

C -	8-pin connector, on control unit driver door -T8g-

–  behind the door trim, front right -arrow-

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Designation of connector:

A -	Front passenger door control unit -J387-

B -	8-pin connector, on control unit front passenger door -T8i-

–  behind the door trim, rear left -arrow-

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Designation of connector:

A -	Rear left door control unit -J388-

B -	8-pin connector, on door control unit, rear left -T8k-

–  behind the door trim, rear right -arrow-

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Designation of connector:

A -	Rear right door control unit -J389-

B -	8-pin connector, on door control unit, rear left -T8l-

–  in centre dash panel, under radio -arrow-

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Designation of connector:

A -	Heater control unit -J162-

B -	5-pin connector, on heater control unit -Vazio-

C -	16-pin connector, on heater control unit -T16h-

D -	18-pin connector, on heater control unit -Vazio-

–  in centre dash panel, under radio -arrow-

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Designation of connector:

A -	Air conditioning system control unit -J301-

B -	5-pin connector, on air conditioning system control unit -T5l/T5m-

C -	16-pin connector, on heater control unit -T16c-

D -	2-pin connector, on heater control unit -T2bo-

–  in centre dash panel, under radio -arrow-

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Designation of connector:

A -	Climatronic control unit -J255-

B -	20-pin connector, on Climatronic control unit -T20a-

C -	12-pin connector, on Climatronic control unit -T12j-

D -	16-pin connector, on Climatronic control unit -T16g-

–  near steering column -arrow-

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Designation of connector:

A -	Convenience system central control unit -J393-

B -	12-pin connector, on convenience system central control unit -T12b-

C -	23-pin connector, on convenience system central control unit -T23a-

D -	12-pin connector, on convenience system central control unit -T12c-

–  on steering wheel, left -arrow-

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Designation of connector:

A -	Operating unit in multifunction steering wheel -E221-

B -	6-pin connector, on multifunction steering wheel control unit -T6be-

–  on dash panel, left -arrow-

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Designation of connector:

A -	Control unit with display in dash panel insert -J285-

B -	32-pin connector, on control unit with display in dash panel insert -T32a-

1 -	Immobilizer reader coil

2 -	Terminal 56al

3 -	Terminal 56bl

4 -

Vacant

5 -	Speed signal

6 -	Speedometer sender

7 -	Terminal CAN-Bus low

8 -	Terminal CAN-Bus high

9 -	Terminal CAN-Bus high (convenience)

10 -	Terminal CAN-Bus low (convenience)

11 -	Parking light switch

-	Turn signal switch

-	Headlight dipper/flasher switch

-	Intermittent wiper switch

-	Multifunction display call-up button

12 -	Parking light switch

-	Turn signal switch

-	Headlight dipper/flasher switch

-	Intermittent wiper switch

-	Multifunction display call-up button

13 -

Vacant

14 -

Vacant

15 -	Fuel gauge sender

16 -	Coolant shortage indicator sender

17 -	Immobilizer reader coil

18 -	Rear fog light

19 -

Vacant

20 -	Front left belt switch

21 -	Handbrake warning switch

22 -	Oil level warning contact

23 -	Oil pressure switch

24 -	Onboard supply control unit

25 -

Vacant

26 -

Vacant

27 -	Parking light switch

-	Turn signal switch

-	Headlight dipper/flasher switch

-	Intermittent wiper switch

-	Multifunction display call-up button

28 -

Vacant

29 -

Vacant

30 -	Windscreen washer fluid level sender

31 -	Ambient temperature sensor, sensor earth

32 -	Terminal 31

C -	8-pin connector, on control unit with display in dash panel insert -T8a-

1 -	Brake wear indicator

2 -

Vacant

3 -

Vacant

4 -	Terminal 58R, right parking light

5 -	Terminal 15a

6 -	Terminal 58L, left parking light

7 -	Terminal 30a

8 -	Terminal 31

–  under centre console -arrow-

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Designation of connector:

A -	Airbag control unit -J234-

B -	50-pin connector, on airbag control unit -T50a-

–  in engine compartment, right -arrow-

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Designation of connector:

A -	ABS control unit -J104-

B -	38-pin connector, on ABS control unit -T38a-

–  in engine compartment, right -arrow-

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Designation of connector:

A -	ABS control unit -J104-

B -	42-pin connector, on ABS control unit -T42a-

–  behind side trim, in left luggage compartment -arrow-

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Designation of connector:

A -	Parking aid control unit -J446-

B -	12-pin connector, on parking aid control unit -T12f-

C -	16-pin connector, on parking aid control unit -T16a-

–  behind side trim, in right luggage compartment -arrow-

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Designation of connector:

A -	Parking aid control unit -J446-

B -	12-pin connector, on parking aid control unit -T12f-

C -	16-pin connector, on parking aid control unit -T16a-

–  on blower box, centre right, near glove compartment -arrow-

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Designation of connector:

A -	Control and regulating unit for air conditioning system -J127-

B -	6-pin connector, on fresh air blower control unit -T6al-

–  behind the glove compartment -arrow-

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Designation of connector:

A -	Control unit for interactive system -J879-

B -	16-pin connector, on control unit for interactive system -T16d-

–  next to left steering column -arrow-

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Designation of connector:

A -	Control unit for lighting and wiper functions -J917-

B -	12-pin connector, on control unit for lighting and wiper functions -T12k-

C -	16-pin connector, on control unit for lighting and wiper functions -T16i-

–  in engine compartment, left -arrow-

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Designation of connector:

A -	Power steering control unit -J500-

B -	3-pin connector, on heated driver seat control unit -Vazio-

C -	2-pin connector, on heated driver seat control unit -T2ct-

D -	4-pin connector, on heated driver seat control unit -T4ai-

–  near interior mirror, on roof-arrow-

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Designation of connector:

A -	Sliding sunroof adjustment control unit -J245-

B -	6-pin connector, on sliding sunroof adjustment control unit -T6bb-

C -	6-pin connector, on sliding sunroof adjustment regulator -T6bc-

–  on relay plate, behind the dash panel, left -arrow-

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Designation of connector:

A -	Mirror memory control unit -J267-

B -	18-pin connector, on mirror memory control unit -T18c-

–  on relay plate, dash panel, left -arrow-

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Designation of connector:

A -	Onboard supply control unit -J519-

B -	16-pin connector, on onboard supply control unit -T16b-

1 -

Vacant

2 -	Terminal CAN-Bus low

3 -	Terminal CAN-Bus low

4 -

Vacant

5 -	Terminal CAN-Bus high

6 -	Terminal CAN-Bus high

7 -	Intermittent wiper switch

8 -	Intermittent wiper switch

9 -	Fuel supply relay

10 -	Left turn signal switch

11 -	Control unit with display in dash panel insert

12 -	Turn signal switch

13 -	Anti-theft alarm and vermin repellent system contact switch

14 -	Right turn signal

15 -	Terminal 30a

16 -	Left turn signal

C -	6-pin connector, on onboard supply control unit -T6q-

1 -

Vacant

2 -	Rear lid release switch

3 -	Luggage compartment light switch

4 -	Luggage compartment light switch

-	Luggage compartment light

5 -	Rear lid remote release button

6 -	Rear lid release switch

D -	18-pin connector, on onboard supply control unit -T18a-

1 -

Diagnosis

2 -	Terminal 75a

3 -	Rear right central locking lock unit

4 -	Front passenger side central locking lock unit

5 -	Terminal 30

6 -	Driver door open switch

7 -

Vacant

8 -	Terminal 31

9 -	Alternator

-	Voltage regulator

10 -

Vacant

11 -	terminal X

12 -	Terminal 15

13 -	Rear left central locking lock unit

14 -	Ignition/starter switch

15 -	Terminal 53c

16 -	Windscreen wiper motor

17 -	Horn activation contact ring

18 -	Wiper switch

E -	6-pin connector, on onboard supply control unit -Vazio-

F -	18-pin connector, on onboard supply control unit -T18b-

1 -	Terminal 31 (Export models only)

-	vacant (Brazil models only)

2 -

Vacant

3 -

Vacant

4 -

Vacant

5 -

Vacant

6 -

Vacant

7 -	Rain sensor

8 -	Rain sensor

9 -	Terminal CAN-Bus low (convenience)

10 -

Vacant

11 -	Rain sensor

12 -	Terminal CAN-Bus high (convenience)

13 -	Terminal 31 (Export models only)

-	vacant (Brazil models only)

14 -

Vacant

15 -

Vacant

16 -

Vacant

17 -	Starter motor relay

18 -

Vacant

G -	6-pin connector, on onboard supply control unit -T6c-

1 -

Vacant

2 -	Terminal 58d

3 -	Hazard warning light switch illumination

4 -	Heated rear window switch

5 -	Heated rear window switch illumination bulb

6 -	Hazard warning lights button

H -	5-pin connector, on onboard supply control unit -T5f-

1 -	Terminal 31

2 -	Horn or dual tone horn

3 -	Terminal 30a

4 -	Heated rear window

5 -	Terminal 30a

I -	5-pin connector, on onboard supply control unit -T5d-

1 -	Interior lights

2 -	Terminal 31a

3 -	Terminal 30a

4 -	Windscreen wiper motor

5 -	Windscreen wiper motor

J -	6-pin connector, on onboard supply control unit -T6t-

1 -	Mirror adjustment change-over switch

-	Mirror adjustment switch

2 -	Driver side heated exterior mirror

3 -

Vacant

4 -	Front passenger side heated exterior mirror

5 -

Vacant

6 -	Terminal 30a

K -	6-pin connector, on onboard supply control unit -T6m-

1 -	Terminal 30a

2 -

Vacant

3 -

Vacant

4 -	Terminal 30a

5 -

Vacant

6 -	Terminal 30

L -	6-pin connector, on onboard supply control unit -T6u-

1 -	Terminal 15a

2 -	Reversing light

3 -

Vacant

4 -

Vacant

5 -	Rear lid release motor

6 -	Terminal 30a

–  near interior lighting -arrow-

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Designation of connector:

A -	Mirror memory control unit -J347-

B -	8-pin connector, on mirror memory control unit -T8d-