Pin Voltage Charts

Fig 1: ECM Terminal ID

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

26-PIN CONNECTOR CHART

Terminal ID No./Wire Color	Function/ Description	Voltage Value
FPU 1 Blue/White	Fuel Pressure Up VSV	N/A
NSW 2 Black/Red or Black/White	Neutral/Start Switch	N/A
THW 3 Green/Black	Engine Coolant Temperature Sensor	.4-.7V w/ Ignition On, Coolant Temp 176°F (80°C)
PIM 4 Pink	MAP Sensor	3.3-3.9V w/ Ignition On
THA 5 Lt Green/Black	Intake Air Temperature Sensor	2-2.8V w/ Ignition On, Intake Air Temp 68°F (20°C)
IGT 6 Lt Green	Ignitor	.7-1V w/ Engine Idling
IGF 7 Lt Green/Yel	Ignitor	N/A
8	Blank	N/A
NE- 9 Black	Distributor	N/A
OX 10 Black	Oxygen Sensor	N/A
STA 11 Black/Red or Black or White	Starter Signal	6-12V w/ Engine Cranking
No. 10 12 White	Fuel Injector	9-14V with Ignition On
EO1 13 Brown	ECM Ground	N/A
VISC 14 Green/Red	Idle Up VSV	N/A
EGR 15 Pink/Blue	EGR VSV	N/A
E2 16 Brown	Sensor Ground	N/A
VTA 17 Yellow/Green	Throttle Position Sensor	.8-1.2V w/ Ignition On, Throttle Valve Closed 3.2-4.2V w/ Ignition On Throttle Valve Open
VCC 18 Lt Green/Red	Throttle Position Sensor Vacuum Sensor	4.5-5.5V w/ Ignition On
IDL 19 Blue/Red or Yellow/Black	Throttle Position Sensor	4.5-5.5V w/ Ignition On,Throttle Valve Open
20	Blank	N/A
NE 21 White	Distributor	N/A
E21 22 Brown	Sensor Ground	N/A
THG 23 Brown or Blue/Red	EGR Gas Temperature Sensor	N/A
E1 24 Brown	ECM Ground	N/A
No. 20 25 Yellow	Fuel Injector	9-14V with Ignition On
EO2 26 Brown	ECM Ground	N/A

16-PIN CONNECTOR CHART

Terminal ID No./Wire Color	Function/ Description	Voltage Value
+B1 1 Black/Orange	EFI Main Relay	9-14V with Ignition On
BATT 2 White/Red	Battery	9-14V At All Times
3	Blank	N/A
FC 4 Green	Circuit Opening Relay	N/A
5	Blank	N/A
6	Blank	N/A
TOV 7 Red/Green	Throttle Opening VSV (Calif)	N/A
T 8 Violet	Check Connector	N/A
+B 9 Black/Orange	EFI Main Relay	9-14V with Ignition On
W 10 Green/White	Warning Indicator	9-14V with Engine Running, Light Off
11	Blank	N/A
A/C 12 Pink	A/C Compressor Clutch	8-14V with Ignition & A/C On
SPD 13 Yellow	Speed Sensor	N/A
ACT 14 Lt Green/Blk	A/C Amplifier	N/A
15	Blank	N/A
VF 16 Green/Yellow	Check Connector	N/A