ECU / loom pinout
1990 7M-GE ECU pinout - dark gray (A / B / C)
1990 dark gray 7M-GE ECU connector layout with A, B and C plugs. Terminal functions and visible wire colours have been entered as a starter pinout. Blank or variant-dependent positions remain editable.
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.
A — A connector (dark gray, 24 pin)
Connector face view as shown in the diagram. Top row 1-12, bottom row 13-24.
B — B connector (dark gray, 18 pin)
Connector face view as shown in the diagram. Top row 1-9, bottom row 10-18.
C — C connector (dark gray, 10 pin)
Connector face view as shown in the diagram. Top row 1-5, bottom row 6-10.
Detailed connector view
Source connectors one by one
A — A connector (dark gray, 24 pin)
Connector face view as shown in the diagram. Top row 1-12, bottom row 13-24.
Pin list for A — A connector (dark gray, 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
|
IG S/W | power |
Ignition switch Ignition switch |
B-OBlack with Orange stripe | — |
|
#2
cell 1,2
|
BATT | power |
Battery constant power Battery constant power |
B-YBlack with Yellow stripe | — |
|
#3
cell 1,3
|
VC | input |
Sensor reference voltage Sensor reference voltage |
L-RBlue with Red stripe | — |
|
#4
cell 1,4
|
VS | input |
Air flow meter signal Air flow meter signal |
LG-RLight Green with Red stripe | — |
|
#5
cell 1,5
|
THA | input |
Air temperature sensor Air temperature sensor |
LGLight Green | — |
|
#6
cell 1,6
|
FP | output |
Fuel pump relay Fuel pump relay |
YYellow | — |
|
#7
cell 1,7
|
SPD | input |
Speedometer signal Speedometer signal |
PPink | — |
|
#8
cell 1,8
|
EGR | output |
EGR VSV EGR VSV |
R-BRed with Black stripe | — |
|
#9
cell 1,9
|
M-REL | power |
EFI main relay coil EFI main relay coil |
B-OBlack with Orange stripe | — |
|
•
cell 1,10
|
Empty / unused | — | — |
— |
— |
|
#11
cell 1,11
|
VSV1 | output |
VSV 1 VSV 1 |
LG-BLight Green with Black stripe | — |
|
#12
cell 1,12
|
OX1 | input |
Oxygen sensor Oxygen sensor |
WWhite | — |
|
#13
cell 2,1
|
+B1 | power |
EFI main relay power EFI main relay power |
B-RBlack with Red stripe | — |
|
#14
cell 2,2
|
+B | power |
EFI main relay power EFI main relay power |
B-RBlack with Red stripe | — |
|
•
cell 2,3
|
Empty / unused | — | — |
— |
— |
|
#16
cell 2,4
|
LP | output |
Headlight relay Headlight relay |
R-YRed with Yellow stripe | — |
|
#17
cell 2,5
|
ECT | input |
ECT computer signal ECT computer signal |
R-YRed with Yellow stripe | — |
|
#18
cell 2,6
|
DEF | output |
Defogger relay Defogger relay |
VViolet | — |
|
#19
cell 2,7
|
W | output |
Check engine warning light Check engine warning light |
B-OBlack with Orange stripe | — |
|
#20
cell 2,8
|
A/C | output |
A/C magnet switch A/C magnet switch |
L-RBlue with Red stripe | — |
|
#21
cell 2,9
|
L3 | input |
ECT computer L3 ECT computer L3 |
R-WRed with White stripe | — |
|
#22
cell 2,10
|
L2 | input |
ECT computer L2 ECT computer L2 |
RRed | — |
|
#23
cell 2,11
|
L1 | input |
ECT computer L1 ECT computer L1 |
BBlack | — |
|
#24
cell 2,12
|
E2 | ground |
Sensor ground Sensor ground |
BRBrown | — |
B — B connector (dark gray, 18 pin)
Connector face view as shown in the diagram. Top row 1-9, bottom row 10-18.
Pin list for B — B connector (dark gray, 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
|
THW | input |
Water temperature sensor Water temperature sensor |
GGreen | — |
|
#2
cell 1,2
|
IGF | input |
Igniter feedback Igniter feedback |
LG-BLight Green with Black stripe | — |
|
#3
cell 1,3
|
IGT | output |
Igniter trigger Igniter trigger |
LGLight Green | — |
|
#4
cell 1,4
|
NE | input |
Distributor / CPS NE signal Distributor / CPS NE signal |
LBlue | — |
|
#5
cell 1,5
|
G2 | input |
Distributor / CPS signal G2 Distributor / CPS signal G2 |
YYellow | — |
|
#6
cell 1,6
|
G1 | input |
Distributor / CPS signal G1 Distributor / CPS signal G1 |
RRed | — |
|
#7
cell 1,7
|
G- | ground |
Distributor / CPS ground reference Distributor / CPS ground reference |
BBlack | — |
|
#8
cell 1,8
|
ISC2 | output |
ISC motor coil 2 ISC motor coil 2 |
G-WGreen with White stripe | — |
|
#9
cell 1,9
|
ISC1 | output |
ISC motor coil 1 ISC motor coil 1 |
W-YWhite with Yellow stripe | — |
|
#10
cell 2,1
|
KNK | input |
Knock sensor Knock sensor |
WWhite | — |
|
•
cell 2,2
|
Empty / unused | — | — |
— |
— |
|
•
cell 2,3
|
Empty / unused | — | — |
— |
— |
|
#13
cell 2,4
|
IDL | input |
Throttle position sensor idle switch Throttle position sensor idle switch |
Y-LYellow with Blue stripe | — |
|
#14
cell 2,5
|
VTA | input |
Throttle position sensor signal Throttle position sensor signal |
W-RWhite with Red stripe | — |
|
#15
cell 2,6
|
TE1 | input |
Check connector test terminal Check connector test terminal |
R-GRed with Green stripe | — |
|
#16
cell 2,7
|
VF1 | input |
Check connector VF signal Check connector VF signal |
GRGray | — |
|
#17
cell 2,8
|
ISC4 | output |
ISC motor coil 4 ISC motor coil 4 |
R-WRed with White stripe | — |
|
#18
cell 2,9
|
ISC3 | output |
ISC motor coil 3 ISC motor coil 3 |
L-RBlue with Red stripe | — |
C — C connector (dark gray, 10 pin)
Connector face view as shown in the diagram. Top row 1-5, bottom row 6-10.
Pin list for C — C connector (dark gray, 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
|
N/SW | input |
Neutral start switch Neutral start switch |
B-YBlack with Yellow stripe | — |
|
#2
cell 1,2
|
STJ | signal |
Cold start injector Cold start injector |
GGreen | — |
|
#3
cell 1,3
|
STA | input |
Starter switch Starter switch |
B-LBlack with Blue stripe | — |
|
#4
cell 1,4
|
#10 | output |
Injector group, cylinders 1 and 4 Injector group, cylinders 1 and 4 |
W-LWhite with Blue stripe | — |
|
#5
cell 1,5
|
E01 | ground |
Power ground Power ground |
W-BWhite with Black stripe | — |
|
•
cell 2,1
|
Empty / unused | — | — |
— |
— |
|
#7
cell 2,2
|
E1 | ground |
Computer ground Computer ground |
BRBrown | — |
|
#8
cell 2,3
|
#30 | output |
Injector group, cylinders 3 and 5 Injector group, cylinders 3 and 5 |
WWhite | — |
|
#9
cell 2,4
|
#20 | output |
Injector group, cylinders 2 and 6 Injector group, cylinders 2 and 6 |
W-RWhite with Red stripe | — |
|
#10
cell 2,5
|
E02 | ground |
Power ground Power ground |
W-BWhite with Black stripe | — |