ECU / loom pinout
JZX100
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.
G — F25
H — F26
I — C2
J — C3
Detailed connector view
Source connectors one by one
G — F25
Pin list for G — F25
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
•
cell 1,1
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,2
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,3
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,4
|
Empty / unused | — | — |
— |
— |
|
#5
cell 1,5
|
ACMG | output |
A/C magnetic clutch relay ECU output used to command the air-conditioning magnetic clutch relay; the ECU can disable A/C during heavy acceleration or unsuitable conditions. |
— |
|
|
•
cell 1,6
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,7
|
Empty / unused | — | — |
— |
— |
|
#8
cell 1,8
|
EGW | output |
Exhaust gas temperature warning light Warning-light output for catalytic-converter/exhaust temperature warning. The ECU grounds the circuit to switch the light on. |
Y-BYellow with Black stripe |
|
|
#9
cell 2,1
|
IGSW | power |
Ignition switch signal Battery voltage present when the ignition switch is in RUN or CRANK; used by the ECU as the main ignition-on request. |
B-RBlack with Red stripe |
|
|
•
cell 2,2
|
Empty / unused | — | — |
— |
— |
|
#11
cell 2,5
|
TE2 | — |
Diagnostic test mode 2 Ground this terminal to enable the second diagnostic test mode where diagnostic serial data is sent through VF-style output on supported ECUs. |
PPink |
|
|
#12
cell 2,8
|
SPD | input |
Vehicle speed signal Vehicle-speed input used by the ECU for idle control, transmission logic, speed limiting and related strategies. |
LGLight Green |
|
|
#13
cell 2,9
|
CCO | output |
Catalytic converter temperature sensor Catalytic converter temperature sensor input used for over-temperature warning. The sensor is normally installed after the catalytic converter. |
G-YGreen with Yellow stripe |
|
|
#14
cell 3,1
|
BATT | power |
Constant battery power Permanent battery voltage for ECU memory, learned trims and diagnostic code retention. |
B-YBlack with Yellow stripe |
|
|
•
cell 3,2
|
Empty / unused | — | — |
— |
— |
|
•
cell 3,3
|
Empty / unused | — | — |
— |
— |
|
•
cell 3,4
|
Empty / unused | — | — |
— |
— |
|
#18
cell 3,5
|
ETIF | — |
ETCS/traction interface signal Electronic throttle/traction interface signal. Review exact JZX EWD circuit before wiring. |
G-WGreen with White stripe |
|
|
#19
cell 3,6
|
ACC2 | input |
Accelerator/auxiliary signal 2 Accelerator/auxiliary control signal. Review exact JZX EWD circuit before wiring. |
R-YRed with Yellow stripe |
|
|
#20
cell 3,7
|
A/C | signal |
Air-conditioning request Air-conditioning request input from the A/C amplifier/ECU asking the engine ECU to permit clutch engagement. |
L-RBlue with Red stripe |
|
|
#21
cell 3,8
|
ELS2 | — |
Electrical load sense Electrical-load sense input used for idle/engine compensation when vehicle electrical loads are active. |
G-OGreen with Orange stripe |
|
|
#22
cell 4,1
|
+B | power |
Main EFI relay switched power Switched battery power supplied to the ECU when the EFI main relay is energised. |
B-RBlack with Red stripe |
|
|
•
cell 4,2
|
Empty / unused | — | — |
— |
— |
|
•
cell 4,3
|
Empty / unused | — | — |
— |
— |
|
#25
cell 4,6
|
STP | output |
Stop light / brake signal Brake/stop-light input used by the ECU and related control systems to identify brake pedal operation. |
G-WGreen with White stripe |
|
|
#26
cell 4,7
|
THWO | — |
Coolant temperature warning/output Coolant temperature related output to another module or display circuit. |
G-RGreen with Red stripe |
|
|
#27
cell 4,8
|
ELS3 | — |
Electrical load sense Electrical-load sense input used for idle/engine compensation when vehicle electrical loads are active. |
BR-YBrown with Yellow stripe |
|
|
#28
cell 4,9
|
ELS1 | — |
Electrical load sense Electrical-load sense input used for idle/engine compensation when vehicle electrical loads are active. |
BR-WBrown with White stripe |
|
H — F26
Pin list for H — F26
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
#1
cell 1,1
|
NE0 | — |
Slave engine speed output Copy of the engine speed signal supplied to other control modules such as traction/ABS/VSC systems. |
L-OBlue with Orange stripe |
|
|
#2
cell 1,2
|
MREL | — |
Main EFI relay control ECU output that turns on the EFI main relay. It can stay active briefly after key-off so the idle valve can reset/open for the next start. |
R-YRed with Yellow stripe |
|
|
#3
cell 1,3
|
No label | — | — | GR-RGray with Red stripe | — |
|
#4
cell 1,4
|
FPR | — |
Fuel pump relay/control Fuel-pump relay/control related output. Review exact target circuit on the JZX EWD before final wiring. |
W-LWhite with Blue stripe |
|
|
#5
cell 2,1
|
TE1 | input |
Diagnostic test mode 1 Ground this terminal to enable the basic diagnostic/test mode and flash diagnostic codes through the warning light. |
GGreen |
|
|
•
cell 2,2
|
Empty / unused | — | — |
— |
— |
|
#7
cell 2,5
|
EFI+ | — |
EFI related positive signal EFI-system related positive control/signal line. Review exact JZX EWD circuit before wiring. |
BRBrown |
|
|
#8
cell 3,1
|
FPU | output |
Fuel pump speed-up/control Fuel pump control/speed-up related output. Review exact target circuit on the JZX EWD before final wiring. |
LGLight Green |
|
|
#9
cell 3,2
|
FAIL | — |
Fail-safe warning/status output Fail-safe/status output to another module or warning circuit. Review exact JZX EWD circuit before wiring. |
LG-RLight Green with Red stripe |
|
|
#10
cell 3,3
|
FC | output |
Fuel pump / circuit opening relay control Fuel-pump relay/control signal used in many Toyota systems to command fuel pump operation. |
L-BBlue with Black stripe |
|
|
#11
cell 3,4
|
EFI- | — |
EFI related negative signal EFI-system related negative control/signal line. Review exact JZX EWD circuit before wiring. |
YYellow |
|
|
•
cell 4,1
|
Empty / unused | — | — |
— |
— |
|
#13
cell 4,2
|
PRG | output |
EVAP purge VSV Purge control output for the evaporative-emissions/charcoal-canister purge valve. |
G-RGreen with Red stripe |
|
|
#14
cell 4,3
|
ABV | — |
Air bypass valve VSV Turbo/intake air bypass valve VSV control output. Used to operate an air bypass valve as part of turbo/boost control. |
Y-GYellow with Green stripe |
|
|
•
cell 4,4
|
Empty / unused | — | — |
— |
— |
|
•
cell 4,5
|
Empty / unused | — | — |
— |
— |
I — C2
Pin list for I — C2
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
#1
cell 1,1
|
VC | Output |
Regulated 5 V sensor supply Regulated 5 V reference supply for sensors such as throttle position and MAP/airflow related sensors. |
R-YRed with Yellow stripe |
|
|
•
cell 1,2
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,3
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,4
|
Empty / unused | — | — |
— |
— |
|
#5
cell 1,5
|
NE+ | Input |
Crankshaft position sensor positive Crank sensor positive signal used by the ECU to determine crankshaft speed and position for fuel and ignition timing. |
GGreen |
|
|
#6
cell 1,6
|
NE- | Input |
Crankshaft position sensor negative Crank sensor negative/reference signal. |
G-YGreen with Yellow stripe |
|
|
#7
cell 2,1
|
VTA1 | Input |
Throttle position sensor Analogue throttle-position signal representing how open or closed the engine throttle is. |
Y-BYellow with Black stripe |
|
|
#8
cell 2,2
|
VG | Input |
Airflow meter signal Airflow meter / intake-air amount signal used by airflow-meter ECUs as a main engine-load input. |
G-BGreen with Black stripe |
|
|
•
cell 2,5
|
Empty / unused | — | — |
— |
— |
|
#10
cell 2,6
|
VVT | Input |
VVT cam timing signal Variable-valve-timing related cam position/timing feedback signal used by the ECU for VVTi control. |
— |
|
|
•
cell 2,7
|
Empty / unused | — | — |
— |
— |
|
#12
cell 3,1
|
VTA2 | Input |
Traction-control throttle position sensor Analogue signal for the traction-control/sub-throttle position. |
P-GPink with Green stripe |
|
|
#13
cell 3,2
|
OX | Input |
Oxygen sensor signal Narrowband oxygen sensor signal used for closed-loop fuel trim around stoichiometric air/fuel ratio. |
G-YGreen with Yellow stripe |
|
|
#14
cell 3,3
|
VTO2 | Output |
Slave traction throttle position output Copy of the traction-control throttle position signal sent to the traction-control module. |
G-RGreen with Red stripe |
|
|
•
cell 3,4
|
Empty / unused | — | — |
— |
— |
|
#16
cell 3,5
|
No label | — | — | L-BBlue with Black stripe | — |
|
#17
cell 3,6
|
IGT2 | Output |
Ignition trigger cylinder 2 Ignition trigger output from the ECU to the igniter/coil channel for cylinder 2. |
PPink |
|
|
•
cell 4,1
|
Empty / unused | — | — |
— |
— |
|
#19
cell 4,2
|
HT | Output |
Oxygen sensor heater Low-side control for the heated oxygen sensor heater. The heater helps the oxygen sensor reach operating temperature quickly. |
— |
|
|
#20
cell 4,5
|
THW | Input |
Engine coolant temperature sensor Coolant temperature thermistor input used for warm-up enrichment, fan/idle strategies and other engine corrections. |
L-YBlue with Yellow stripe |
|
|
#21
cell 4,6
|
THA | Input |
Intake air temperature sensor Intake-air temperature thermistor input used for engine corrections such as fuel and ignition adjustment. |
R-WRed with White stripe |
|
|
#22
cell 4,7
|
E2 | Output |
Sensor ground Dedicated sensor ground inside the ECU. Use as sensor ground/reference; do not tie directly to chassis ground in the sensor circuit. |
BRBrown |
|
J — C3
Pin list for J — C3
Labels, signal names and notes for the selected connector.
| Pin | Label / signal | I/O | Function / description | Wire / req. | Links |
|---|---|---|---|---|---|
|
•
cell 1,1
|
Empty / unused | — | — |
— |
— |
|
•
cell 1,2
|
Empty / unused | — | — |
— |
— |
|
#3
cell 1,3
|
VTO1 | — |
Slave throttle position output Copy of the engine throttle position signal sent to traction-control related modules. |
G-YGreen with Yellow stripe |
|
|
•
cell 1,4
|
Empty / unused | — | — |
— |
— |
|
#5
cell 1,5
|
#60 | output |
Cylinder 6 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
R-BRed with Black stripe |
|
|
#6
cell 1,6
|
#50 | output |
Cylinder 5 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
L-RBlue with Red stripe |
|
|
#7
cell 1,7
|
#40 | output |
Cylinder 4 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
R-WRed with White stripe |
|
|
#8
cell 1,8
|
#30 | output |
Cylinder 3 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
GGreen |
|
|
#9
cell 1,9
|
#20 | output |
Cylinder 2 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
LBlue |
|
|
#10
cell 1,10
|
#10 | output |
Cylinder 1 injector driver ECU-controlled low-side injector output. Injector should have switched ignition power on one side and this ECU pin on the other side. |
RRed |
|
|
•
cell 2,1
|
Empty / unused | — | — |
— |
— |
|
#12
cell 2,2
|
IGF | signal |
Igniter verification signal Feedback from the igniter confirming that ignition occurred successfully. If missing, the ECU can stop injection to protect the engine. |
Y-GYellow with Green stripe |
|
|
#13
cell 2,5
|
STA | input |
Starter signal Battery voltage present while the ignition switch is in CRANK. The ECU uses it to identify starting/cranking conditions. |
B-WBlack with White stripe |
|
|
#14
cell 2,6
|
NSW | input |
Neutral / park switch signal Park/neutral starter-interlock signal. Automatic ECUs use it to know whether the shifter is in P or N; manual setups often tie it into the STA circuit depending on conversion wiring. |
B-WBlack with White stripe |
|
|
#15
cell 2,9
|
OCV- | output |
VVTi oil control valve negative Other side of the VVTi oil control valve. Used together with OCV+ for PWM control of intake cam timing. |
W-LWhite with Blue stripe |
|
|
#16
cell 2,10
|
OCV+ | output |
VVTi oil control valve positive One side of the VVTi oil control valve. The ECU drives the OCV circuit to vary intake camshaft timing using oil pressure. |
W-RWhite with Red stripe |
|
|
•
cell 3,1
|
Empty / unused | — | — |
— |
— |
|
#18
cell 3,2
|
ETC+ | — |
ETCS-i clutch/motor positive Electronic throttle control related positive drive/control line. Review exact JZX EWD circuit before wiring. |
LBlue |
|
|
#19
cell 3,3
|
No label | — | — | G-YGreen with Yellow stripe | — |
|
#20
cell 3,4
|
ISC4 | signal |
Idle speed control valve coil 4 Idle-speed-control stepper/coil output used by the ECU to control bypass air and stabilize idle. |
RRed |
|
|
#21
cell 3,5
|
ISC3 | signal |
Idle speed control valve coil 3 Idle-speed-control stepper/coil output used by the ECU to control bypass air and stabilize idle. |
WWhite |
|
|
#22
cell 3,6
|
ISC2 | signal |
Idle speed control valve coil 2 Idle-speed-control stepper/coil output used by the ECU to control bypass air and stabilize idle. |
YYellow |
|
|
#23
cell 3,7
|
ISC1 | signal |
Idle speed control valve coil 1 Idle-speed-control stepper/coil output used by the ECU to control bypass air and stabilize idle. |
YYellow |
|
|
#24
cell 3,8
|
IGT1 | — |
Ignition trigger cylinder 1 Ignition trigger output from the ECU to the igniter/coil channel for cylinder 1. |
W-GWhite with Green stripe |
|
|
#25
cell 3,9
|
E1 | ground |
ECU ground Main ECU ground path to battery negative/engine ground. |
BRBrown |
|
|
#26
cell 3,10
|
EVG | input |
EVAP/ground reference signal EVAP or related ground/reference signal. Review exact JZX EWD circuit before wiring. |
LGLight Green |
|
|
#27
cell 4,1
|
ETC- | — |
ETCS-i clutch/motor negative Electronic throttle control related negative drive/control line. Review exact JZX EWD circuit before wiring. |
PPink |
|
|
•
cell 4,2
|
Empty / unused | — | — |
— |
— |
|
#29
cell 4,3
|
KNK2 | input |
No.2 knock sensor (rear) Rear knock-sensor signal. The ECU uses it to detect knock and adjust ignition timing to protect the engine. |
— |
|
|
#30
cell 4,4
|
KNK1 | input |
No.1 knock sensor (front) Front knock-sensor signal. The ECU uses it to detect knock and adjust ignition timing to protect the engine. |
— |
|
|
#31
cell 4,7
|
IDL2 | — |
Traction-control throttle idle switch Idle-position switch for the traction-control throttle/sub-throttle circuit. |
L-WBlue with White stripe |
|
|
•
cell 4,8
|
Empty / unused | — | — |
— |
— |
|
#33
cell 4,9
|
No label | — | — |
— |
— |
|
#34
cell 4,10
|
No label | — | — |
— |
— |