ECU / loom pinout
1987 7M-GE ECU pinout - early A70
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. Signal labels are taken directly from the uploaded 1987 7M-GE chart.
ECU-B — ECU-B middle connector - 18 pin
Two rows, 9 positions per row. Two unused cells are kept as blank editable positions.
ECU-C — ECU-C right connector - 24 pin
Two rows, 12 positions per row. Signal labels are taken directly from the uploaded 1987 7M-GE chart.
Detailed connector view
Source connectors one by one
ECU-A — ECU-A left connector - 10 pin
Two rows, 5 positions per row. Signal labels are taken directly from the uploaded 1987 7M-GE chart.
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
|
No.10 | output |
INJECTOR (No. 1 and 4) INJECTOR (No. 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 | output |
COLD START INJECTOR COLD START INJECTOR. |
GGreen | — |
|
#5
cell 1,5
|
NSW or N/C | signal |
NEUTRAL START SWITCH (A/T) NEUTRAL START SWITCH (A/T). |
B-YBlack with Yellow stripe | — |
|
#6
cell 2,1
|
E02 | ground |
POWER GROUND POWER GROUND. |
W-BWhite with Black stripe | — |
|
#7
cell 2,2
|
No.20 | output |
INJECTOR (No. 2 and 6) INJECTOR (No. 2 and 6). |
W-RWhite with Red stripe | — |
|
#8
cell 2,3
|
No.30 | output |
INJECTOR (No. 3 and 5) INJECTOR (No. 3 and 5). |
WWhite | — |
|
#9
cell 2,4
|
E1 | ground |
COMPUTER GROUND COMPUTER GROUND. |
BRBrown | — |
|
•
cell 2,5
|
Empty / unused | — | — |
— |
— |
ECU-B — ECU-B middle connector - 18 pin
Two rows, 9 positions per row. Two unused cells are kept as blank editable positions.
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
|
ISC 1 | signal |
ISC MOTOR NO. 1 COIL ISC MOTOR NO. 1 COIL. |
W-YWhite with Yellow stripe | — |
|
#2
cell 1,2
|
ISC 2 | signal |
ISC MOTOR NO. 2 COIL ISC MOTOR NO. 2 COIL. |
G-WGreen with White stripe | — |
|
#3
cell 1,3
|
G- | ground |
DISTRIBUTOR DISTRIBUTOR. |
BBlack | — |
|
#4
cell 1,4
|
G1 | signal |
DISTRIBUTOR DISTRIBUTOR. |
RRed | — |
|
#5
cell 1,5
|
G2 | signal |
DISTRIBUTOR DISTRIBUTOR. |
YYellow | — |
|
#6
cell 1,6
|
Ne | signal |
DISTRIBUTOR DISTRIBUTOR. |
LBlue | — |
|
#7
cell 1,7
|
IGt | signal |
IGNITER IGNITER. |
L-GBlue with Green stripe | — |
|
#8
cell 1,8
|
IGf | signal |
IGNITER IGNITER. |
LG-BLight Green with Black stripe | — |
|
#9
cell 1,9
|
THW | input |
WATER TEMP. SENSOR WATER TEMP. SENSOR. |
GGreen | — |
|
#10
cell 2,1
|
ISC 3 | signal |
ISC MOTOR NO. 3 COIL ISC MOTOR NO. 3 COIL. |
L-RBlue with Red stripe | — |
|
#11
cell 2,2
|
ISC 4 | signal |
ISC MOTOR NO. 4 COIL ISC MOTOR NO. 4 COIL. |
R-BRed with Black stripe | — |
|
#12
cell 2,3
|
Vf | signal |
CHECK CONNECTOR CHECK CONNECTOR. |
GRGray | — |
|
#13
cell 2,4
|
T | signal |
CHECK CONNECTOR CHECK CONNECTOR. |
R-GRed with Green stripe | — |
|
#14
cell 2,5
|
VTA | input |
THROTTLE POSITION SENSOR THROTTLE POSITION SENSOR. |
W-RWhite with Red stripe | — |
|
#15
cell 2,6
|
IDL | input |
THROTTLE POSITION SENSOR THROTTLE POSITION SENSOR. |
Y-LYellow with Blue stripe | — |
|
•
cell 2,7
|
Empty / unused | — | — |
— |
— |
|
•
cell 2,8
|
Empty / unused | — | — |
— |
— |
|
#18
cell 2,9
|
KNK | input |
KNOCK SENSOR KNOCK SENSOR. |
WWhite | — |
ECU-C — ECU-C right connector - 24 pin
Two rows, 12 positions per row. Signal labels are taken directly from the uploaded 1987 7M-GE chart.
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
|
VSV 1 | signal |
VSV (AIR CONTROL) VSV (AIR CONTROL). |
LG-BLight Green with Black stripe | — |
|
#3
cell 1,3
|
VSV 2 | signal |
VSV (FPU) VSV (FPU). |
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 | — |
|
#5
cell 1,5
|
EGR | signal |
VSV (EGR) VSV (EGR). |
R-BRed with Black stripe | — |
|
#6
cell 1,6
|
SPD | input |
SPEEDOMETER SPEEDOMETER. |
PPink | — |
|
#7
cell 1,7
|
Fp | power |
FUEL PUMP RELAY FUEL PUMP RELAY. |
Y-LYellow with Blue stripe | — |
|
#8
cell 1,8
|
THA | input |
AIR TEMP. SENSOR AIR TEMP. SENSOR. |
LGLight Green | — |
|
#9
cell 1,9
|
Vs | input |
AIR FLOW METER AIR FLOW METER. |
LG-RLight Green with Red stripe | — |
|
#10
cell 1,10
|
Vc | input |
AIR FLOW METER AIR FLOW METER. |
L-RBlue with Red stripe | — |
|
#11
cell 1,11
|
Batt | power |
BATTERY BATTERY. |
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 ECT COMPUTER. |
BBlack | — |
|
#15
cell 2,3
|
L2 | signal |
ECT COMPUTER ECT COMPUTER. |
RRed | — |
|
#16
cell 2,4
|
L3 | signal |
ETC COMPUTER ETC COMPUTER. |
R-WRed with White stripe | — |
|
#17
cell 2,5
|
A/C | signal |
A/C MAGNET SWITCH A/C MAGNET SWITCH. |
L-RBlue with Red stripe | — |
|
#18
cell 2,6
|
W | signal |
WARNING LIGHT WARNING LIGHT. |
GR-GGray with Green stripe | — |
|
#19
cell 2,7
|
DEF
DFG |
power |
DEFOGGER RELAY DEFOGGER RELAY. |
VViolet | — |
|
#20
cell 2,8
|
ECT | signal |
ECT COMPUTER ECT COMPUTER. |
R-YRed with Yellow stripe | — |
|
#21
cell 2,9
|
LP | power |
HEADLIGHT RELAY HEADLIGHT RELAY. |
R-YRed with Yellow stripe | — |
|
•
cell 2,10
|
Empty / unused | — | — |
— |
— |
|
#23
cell 2,11
|
+B | power |
EFI MAIN RELAY EFI MAIN RELAY. |
B-RBlack with Red stripe | — |
|
#24
cell 2,12
|
+B1 | power |
EFI MAIN RELAY EFI MAIN RELAY. |
B-RBlack with Red stripe | — |