ECU / loom pinout
1987 7M-GTE ECU pinout - early A70
Early A70 7M-GTE ECU connector layout with 10-pin, 18-pin and 24-pin plugs.
Real-life connector overview
TSRM wire color codes
First letter = basic wire color. Second code = stripe color. Example: L-Y means blue wire with yellow stripe.
BBlack
BRBrown
GGreen
GRGray
LBlue
LGLight Green
OOrange
PPink
RRed
VViolet
WWhite
YYellow
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.
ECU-A — ECU-A left connector - 10 pin
Two rows, 5 positions per row.
ECU-B — ECU-B middle connector - 18 pin
Two rows, 9 positions per row.
ECU-C — ECU-C right connector - 24 pin
Two rows, 12 positions per row. Blank positions are kept editable.
Detailed connector view
Source connectors one by one
ECU-A — ECU-A left connector - 10 pin
Two rows, 5 positions per row.
Pin list for ECU-A — ECU-A left connector - 10 pin
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
#1
cell 1,1
|
E01 | ground |
Power ground Power ground |
W-BWhite with Black stripe | — |
|
#2
cell 1,2
|
#10 | output |
Injector group, cylinders 1 and 4 Injector group, cylinders 1 and 4 |
W-LWhite with Blue stripe | — |
|
#3
cell 1,3
|
STA | input |
Starter switch Starter switch |
B-LBlack with Blue stripe | — |
|
#4
cell 1,4
|
STJ | signal |
Cold start injector Cold start injector |
GGreen | — |
|
•
cell 1,5
|
Empty / unused | — | — |
— |
— |
|
#6
cell 2,1
|
E02 | ground |
Power ground Power ground |
W-BWhite with Black stripe | — |
|
#7
cell 2,2
|
#20 | output |
Injector group, cylinders 2 and 6 Injector group, cylinders 2 and 6 |
W-RWhite with Red stripe | — |
|
#8
cell 2,3
|
#30 | output |
Injector group, cylinders 3 and 5 Injector group, cylinders 3 and 5 |
WWhite | — |
|
#9
cell 2,4
|
E1 | ground |
Computer ground Computer ground |
BRBrown | — |
|
#10
cell 2,5
|
IGDB | output |
Ignition diagnostic B Ignition diagnostic B |
L-WBlue with White stripe | — |
ECU-B — ECU-B middle connector - 18 pin
Two rows, 9 positions per row.
Pin list for ECU-B — ECU-B middle connector - 18 pin
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
#1
cell 1,1
|
ISC1 | output |
ISC motor coil 1 ISC motor coil 1 |
W-YWhite with Yellow stripe | — |
|
#2
cell 1,2
|
ISC2 | output |
ISC motor coil 2 ISC motor coil 2 |
L-RBlue with Red stripe | — |
|
#3
cell 1,3
|
G- | ground |
Distributor / CPS ground reference Distributor / CPS ground reference |
BBlack | — |
|
#4
cell 1,4
|
G1 | input |
Distributor / CPS signal G1 Distributor / CPS signal G1 |
RRed | — |
|
#5
cell 1,5
|
G2 | input |
Distributor / CPS signal G2 Distributor / CPS signal G2 |
YYellow | — |
|
#6
cell 1,6
|
NE | input |
Distributor / CPS NE signal Distributor / CPS NE signal |
LBlue | — |
|
#7
cell 1,7
|
IGT | output |
Igniter trigger Igniter trigger |
LGLight Green | — |
|
#8
cell 1,8
|
IGF | input |
Igniter feedback Igniter feedback |
LG-BLight Green with Black stripe | — |
|
#9
cell 1,9
|
THW | input |
Water temperature sensor Water temperature sensor |
GGreen | — |
|
#10
cell 2,1
|
ISC3 | output |
ISC motor coil 3 ISC motor coil 3 |
R-BRed with Black stripe | — |
|
#11
cell 2,2
|
ISC4 | output |
ISC motor coil 4 ISC motor coil 4 |
G-WGreen with White stripe | — |
|
#12
cell 2,3
|
VF | input |
Check connector VF signal Check connector VF signal |
GRGray | — |
|
#13
cell 2,4
|
T | input |
Check connector test terminal Check connector test terminal |
R-GRed with Green stripe | — |
|
#14
cell 2,5
|
VTA | input |
Throttle position sensor signal Throttle position sensor signal |
W-RWhite with Red stripe | — |
|
#15
cell 2,6
|
IDL | input |
Throttle position sensor idle switch Throttle position sensor idle switch |
Y-LYellow with Blue stripe | — |
|
#16
cell 2,7
|
IGDA | output |
Ignition diagnostic A Ignition diagnostic A |
L-BBlue with Black stripe | — |
|
#17
cell 2,8
|
KNK1 | input |
Knock sensor 1 Knock sensor 1 |
WWhite | — |
|
#18
cell 2,9
|
KNK2 | input |
Knock sensor 2 Knock sensor 2 |
WWhite | — |
ECU-C — ECU-C right connector - 24 pin
Two rows, 12 positions per row. Blank positions are kept editable.
Pin list for ECU-C — ECU-C right connector - 24 pin
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
#1
cell 1,1
|
OX | input |
Oxygen sensor Oxygen sensor |
WWhite | — |
|
#2
cell 1,2
|
VSV2 | output |
VSV 2 VSV 2 |
R-BRed with Black stripe | — |
|
#3
cell 1,3
|
HT | input |
Oxygen sensor heater Oxygen sensor heater |
R-LRed with Blue stripe | — |
|
#4
cell 1,4
|
M-REL | power |
EFI main relay coil EFI main relay coil |
B-OBlack with Orange stripe | — |
|
•
cell 1,5
|
Empty / unused | — | — |
— |
— |
|
#6
cell 1,6
|
SPD | input |
Speedometer signal Speedometer signal |
PPink | — |
|
#7
cell 1,7
|
FP | output |
Fuel pump relay Fuel pump relay |
YYellow | — |
|
#8
cell 1,8
|
THA | input |
Air temperature sensor Air temperature sensor |
LGLight Green | — |
|
#9
cell 1,9
|
HAC | input |
High altitude compensation signal High altitude compensation signal |
R-BRed with Black stripe | — |
|
#10
cell 1,10
|
VC | input |
Sensor reference voltage Sensor reference voltage |
L-RBlue with Red stripe | — |
|
#11
cell 1,11
|
BATT | power |
Battery constant power Battery constant power |
B-YBlack with Yellow stripe | — |
|
#12
cell 1,12
|
IG S/W | power |
Ignition switch Ignition switch |
B-OBlack with Orange stripe | — |
|
#13
cell 2,1
|
E2 | ground |
Sensor ground Sensor ground |
BRBrown | — |
|
#14
cell 2,2
|
L1 | signal |
ECT computer L1 ECT computer L1 |
BBlack | — |
|
#15
cell 2,3
|
L2 | signal |
ECT computer L2 ECT computer L2 |
RRed | — |
|
#16
cell 2,4
|
L3 | signal |
ECT computer L3 ECT computer L3 |
B-WBlack with White stripe | — |
|
#17
cell 2,5
|
A/C | output |
A/C magnet switch A/C magnet switch |
L-RBlue with Red stripe | — |
|
#18
cell 2,6
|
W | output |
Warning light Warning light |
GR-GGray with Green stripe | — |
|
#19
cell 2,7
|
OIL | input |
Oil pressure signal Oil pressure signal |
Y-BYellow with Black stripe | — |
|
•
cell 2,8
|
Empty / unused | — | — |
— |
— |
|
#21
cell 2,9
|
FC | output |
Fuel pump control Fuel pump control |
GGreen | — |
|
#22
cell 2,10
|
KS | input |
Air flow meter KS signal Air flow meter KS signal |
LG-RLight Green with Red stripe | — |
|
#23
cell 2,11
|
+B | power |
EFI main relay power EFI main relay power |
B-RBlack with Red stripe | — |
|
#24
cell 2,12
|
+B1 | power |
EFI main relay power EFI main relay power |
B-RBlack with Red stripe | — |