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MK3 / A70 markets
Manuals, parts, data
ECU / loom pinout

A70 grey body plugs

Standard connector view side
ECU side

Source ECU / loom

Compact overview only. Blank gaps are real connector spaces. Click a connector to show the larger detailed view below. Use the view-side button to mirror the connectors between ECU side and connector/loom side.

B1 — B1 dark grey 📷
4 × 5
B2 — B2 dark grey 📷
2 × 13
B3 — B3 dark grey 📷
2 × 6
C1 — C1 dark grey 📷
2 × 3
M1 — M1 dark gray 📷
2 × 7
U1 — U1 dark grey 📷
1 × 2

Source connectors one by one

Select a connector or pin in the real-life overview above to show the larger detailed view here.
B1 — B1 dark grey 📷
4 × 5

Pin list for B1 — B1 dark grey

Labels, signal names and notes for the selected connector.

15 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
A/C Water Valve VSV
—
—
•
cell 1,5
Empty / unused — —
—
—
#3
cell 2,1
No label —
FP Signal (Check Connector)
—
—
#4
cell 2,2
No label —
EFI Circuit Opening Relay Coil
—
—
#5
cell 2,3
No label —
A/T Circuit Opening Relay Coil
—
—
#6
cell 2,4
No label —
Fuel Pump Control Relay
—
—
#7
cell 2,5
No label —
Circuit Opening Relay B+
—
—
#8
cell 3,1
No label —
NSW Switch to Cruise Control Clutch Switch (M/T)
—
—
#9
cell 3,2
No label —
Check Engine Light
—
—
#10
cell 3,3
No label —
Neutral Start Switch
—
—
#11
cell 3,4
No label —
A/C Amplifier
—
—
#12
cell 3,5
No label —
Theft Deterrent Horn Signal
—
—
#13
cell 4,1
No label — —
—
—
#14
cell 4,3
No label —
Ignition B+
—
—
#15
cell 4,5
No label — —
—
—
B2 — B2 dark grey 📷
2 × 13

Pin list for B2 — B2 dark grey

Labels, signal names and notes for the selected connector.

23 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
Air Bag Signal Check Connector
—
—
#2
cell 1,2
No label —
Oil Level Signal Light (European Models)
—
—
#3
cell 1,3
No label —
B- for ECT Speed Sensor Solenoid
—
—
#4
cell 1,4
No label — —
—
—
#5
cell 1,5
No label —
Solenoid 2 for ECT and Cruise Control
—
—
#6
cell 1,9
No label — —
—
—
#7
cell 1,10
No label — —
—
—
#8
cell 1,11
No label —
"2" Signal ECT
—
—
#9
cell 1,12
No label — —
—
—
#10
cell 1,13
No label — —
—
—
#11
cell 2,1
No label —
TC Signal for Air Bag / Cruise Control
—
—
#12
cell 2,2
No label — —
—
—
#13
cell 2,3
No label —
"L" Signal ECT
—
—
#14
cell 2,4
No label —
Solenoid 1
—
—
#15
cell 2,5
No label —
Lockup Solenoid
—
—
#16
cell 2,6
No label —
O/D 1 Signal ECT / Cruise Control
—
—
#17
cell 2,7
No label — —
—
—
#18
cell 2,8
No label — —
—
—
#19
cell 2,9
No label — —
—
—
#20
cell 2,10
No label —
IDL Signal from ECT / TCCS
—
—
#21
cell 2,11
No label —
DG Signal ECT for Check Connector
—
—
#22
cell 2,12
No label — —
—
—
#23
cell 2,13
No label — —
—
—
B3 — B3 dark grey 📷
2 × 6

Pin list for B3 — B3 dark grey

Labels, signal names and notes for the selected connector.

10 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
RR B+ for ABS
—
—
#2
cell 1,2
No label —
PSEN for ABS
—
—
•
cell 1,5
Empty / unused — —
—
—
#4
cell 1,6
No label —
PPS Solenoid
—
—
#5
cell 2,1
No label —
RR B- for ABS
—
—
#6
cell 2,2
No label —
Speed Signal for ABS from ECT Computer
—
—
#7
cell 2,3
No label —
"P" Signal for ABS
—
—
•
cell 2,4
Empty / unused — —
—
—
•
cell 2,5
Empty / unused — —
—
—
#10
cell 2,6
No label —
PPS Solenoid
—
—
C1 — C1 dark grey 📷
2 × 3

Pin list for C1 — C1 dark grey

Labels, signal names and notes for the selected connector.

6 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
Battery Signal from 15A EFI Fuse
—
—
#2
cell 1,2
No label —
M-Rel Coil Signal from ECU
—
—
#3
cell 1,3
No label —
B+ from 15A Haz / Horn Fuse for Theft Deterrent Horn
—
—
#4
cell 2,1
No label —
B+ from EFI Main Relay (via 15A EFI Fuse)
—
—
#5
cell 2,2
No label —
B- for Air Flow Meter Switch
—
—
#6
cell 2,3
No label —
A/C Water Temp Switch no. 2
—
—
M1 — M1 dark gray 📷
2 × 7

Pin list for M1 — M1 dark gray

Labels, signal names and notes for the selected connector.

11 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
Backup Light Switch Signal
—
—
#2
cell 1,2
No label —
B+ for Backup Light Switch and B+ for A/C Water Valve VSV
—
—
#3
cell 1,6
No label —
SPD Signal from Combination Meter
—
—
#4
cell 1,7
No label —
RPM Signal for Combination Meter
—
—
#5
cell 2,1
No label — —
—
—
#6
cell 2,2
No label —
Water Temperature Gauge B- for Combination Meter
—
—
#7
cell 2,3
No label —
Oil Pressure Signal for Combination Meter
—
—
•
cell 2,4
Empty / unused — —
—
—
#9
cell 2,5
No label —
"W" Signal for Check Engine Light
—
—
#10
cell 2,6
No label —
Water Temperature Signal for Combination Meter
—
—
#11
cell 2,7
No label —
Signal from Defogger Relay
—
—
U1 — U1 dark grey 📷
1 × 2

Pin list for U1 — U1 dark grey

Labels, signal names and notes for the selected connector.

2 real cavities
Pin Label / signal I/O Function / description Wire / req. Links
#1
cell 1,1
No label —
Theft Deterrent Horn Signal
—
—
#2
cell 1,2
No label —
B+ for Theft Deterrent Horn
—
—