The 2AZ-FE is found in the Scion tC which first made its debut in 2005. This ECU pinout is for a 2007 Scion tC 2AZ-FE.
If you are looking to install some aftermarket gauges or you need a sensor output from your ECU, this Scion tC ECU Pinout is what you are going to need.
This Scion tC ECU Pinout will let you get the install done quickly and without error, please leave us a message below if you have any specific requests for information.
| Terminal No. (Symbols) | Wiring Color | Terminal Description |
Condition |
Specified Condition |
| E4-3 (BATT) – E8-3 (E1) |
V – L |
Battery (for measuring battery voltage and for ECM memory) | Always | 9 to 14 V |
| E4-7 (+BM) – E8-3 (E1) |
BR – L |
Power source of throttle motor | Always | 9 to 14 V |
| E4-9 (IGSW) – E8-3 (E1) |
G – L |
Ignition switch | Ignition switch ON | 9 to 14 V |
| E4-1 (+B) – E8-3 (E1) | GR – L | Power source of ECM | Ignition switch ON | 9 to 14 V |
| E4-2 (+B2) – E8-3 (E1) |
O – L |
Power source of ECM | Ignition switch ON | 9 to 14 V |
| E8-13 (OC1+) – E8-12 (OC1-) |
Y – W |
Camshaft timing oil control valve (OCV) | Ignition switch ON | Pulse generation (See waveform 8) |
| E4-8 (MREL) – E8-7 (E01) |
O – B |
EFI relay | Ignition switch ON | 9 to 14 V |
| E8-18 (VC) – E8-28 (E2) |
V – R |
Power source of sensor(specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| E7-28 (VG) – E7-30 (E2G) |
R – W |
Mass air flow meter | Idling, shift lever position P or Nposition, A/C switch OFF | 0.5 to 3.0 V |
| E7-29 (THA) – E8-28 (E2) |
L – R |
Intake air temperature sensor | Idling, intake air temp. 20°C (68°F) | 0.5 to 3.4 V |
| E8-32 (THW) – E8-28 (E2) |
G – R |
Engine coolant temperature sensor | Idling, engine coolant temp. 80°C (176°F) | 0.2 to 1.0 V |
| E8-20 (VTA1) – E8-28 (E2) | LG – R | Throttle position sensor(for engine control) | Ignition switch ON, accelerator pedal released | 0.3 to 1.0 V |
| Ignition switch ON, accelerator pedal depressed | 3.2 to 4.9 V | |||
| E8-19 (VTA2) – E8-28 (E2) | BR – R | Throttle position sensor (for sensor malfunction detection) | Ignition switch ON, accelerator pedal released | 2.1 to 3.1 V |
| Ignition switch ON, accelerator pedal depressed | 4.5 to 5.5 V |
| Terminal No. (Symbols) | Wiring Color | Terminal Description |
Condition |
Specified Condition |
| E4-18 (VPA) – E4-20 (EPA) | W – BR | Accelerator pedal position sensor (for enginecontrol) | Ignition switch ON, accelerator pedal released | 0.5 to 1.1 V |
| Ignition switch ON, accelerator pedal depressed | 2.6 to 4.5 V | |||
| E4-19 (VPA2) – E4-21 (EPA2) |
V – R |
Accelerator pedal position sensor (for sensor malfunction detection) | Ignition switch ON, accelerator pedal released | 1.2 to 2.0 V |
| Ignition switch ON, accelerator pedal depressed | 3.4 to 5.3 V | |||
| E4-26 (VCPA) – E4-20 (EPA) |
L – BR |
Power source of accelerator pedal position sensor (for VPA) | Ignition switch ON | 4.5 to 5.5 V |
| E4-27 (VCP2) – E4-21 (EPA2) |
P – R |
Power source of accelerator pedal position sensor (for VPA2) | Ignition switch ON | 4.5 to 5.5 V |
| E8-1 (HA1A) – E7-7 (E04) | O – W-B | A/F sensor heater | Idling | Below 3.0 V |
| Ignition switch ON | 9 to 14 V | |||
| E8-21 (A1A+) – E8-3 (E1) |
O – L |
A/F sensor | Ignition switch ON | 3.0 to 3.6 V |
| E8-31 (A1A-) – E8-3 (E1) |
W – L |
A/F sensor | Ignition switch ON | 2.7 to 3.3 V |
| E8-2 (HT1B) – E7-4 (E03) |
L – BR |
Heated oxygen sensor heater | Idling | Below 3.0 V |
| Ignition switch ON | 9 to 14 V | |||
| E8-25 (OX1B) – E8-28 (E2) |
B – R |
Heated oxygen sensor | Maintain engine speed at 2500 rpm for 2 minutes after warming up | Pulse generation (See waveform 6) |
| E7-6 (#1) – E8-7 (E01) E7-5 (#2) – E8-7 (E01) E7-2 (#3) – E8-7 (E01) E7-1 (#4) – E8-7 (E01) |
L – B R – B Y – B W – B |
Injector | Ignition switch ON | 9 to 14 V |
| Idling | Pulse generation (See waveform 1) | |||
| E8-29 (KNK1) – E8-30 (EKNK) |
R – G |
Knock sensor | Maintain engine speed at 4000 rpm after warming up engine | Pulse generation (See waveform 7) |
| E8-26 (G2+) – E8-34 (NE-) |
P – G |
Camshaft position sensor | Idling | Pulse generation (See waveform 3) |
| E8-27 (NE+) – E8-34 (NE-) |
R – G |
Crankshaft position sensor | Idling | Pulse generation (See waveform 3) |
| E8-17 (IGT1) – E8-3 (E1) E8-16 (IGT2) – E8-3 (E1) E8-15 (IGT3) – E8-3 (E1) E8-14 (IGT4) – E8-3 (E1) | G – L P – L B – L
LG – L |
Ignition coil with igniter(ignition signal) | Idling | Pulse generation (See waveform 2) |
| E8-23 (IGF1) – E8-3 (E1) |
V – L |
Ignition coil with igniter (ignition confirmation signal) | Ignition switch ON | 4.5 to 5.5 V |
| Idling | Pulse generation (See waveform 2) | |||
| E7-23 (PRG) – E8-7 (E01) |
R – B |
Purge VSV | Ignition switch ON | 9 to 14 V |
| Idling | Pulse generation (See waveform 9) | |||
| E5-8 (SPD) – E8-3 (E1) |
V – L |
Speed signal from combination meter | Ignition switch ON, rotate driving wheel slowly | Pulse generation (See waveform 11) |
| E4-12 (STA) – E8-3 (E1) |
B – L |
Starter signal | Shift lever position P or N, ignition switch START | 9 to 14 V |
| E5-4 (STP) – E8-3 (E1) |
L – L |
Stop light switch | Brake pedal is depressed | 7.5 to 14 V |
| Brake pedal is released | Below 1.5 V | |||
| E4-16 (ST1-) – E8-3 (E1) |
L – L |
Stop light switch (opposite to STP terminal) | Ignition switch ON,Brake pedal is depressed | Below 1.5 V |
| Ignition switch ON, Brake pedal is released | 7.5 to 14 V | |||
| E4-30 (NSW)*1 – E8-3 (E1) |
Y – L |
Park/neutral position switch | Ignition switch ON, shift position atP or N | 0 to 3.0 V |
| Ignition switch ON, shift position is not P or N | 9 to 14 V |
| Terminal No. (Symbols) | Wiring Color | Terminal Description |
Condition |
Specified Condition |
| E8-5 (M+) – E7-3 (ME01) | B – W-B | Throttle actuator | Idling | Pulse generation (See waveform 4) |
| E8-4 (M-) – E7-3 (ME01) | W – W-B | Throttle actuator | Idling | Pulse generation (See waveform 5) |
| E4-25 (FC) – E8-7 (E01) |
L – B |
Fuel pump control | Ignition switch ON | 9 to 14 V |
| E5-30 (W) – E8-3 (E1) |
G – L |
MIL | Ignition switch ON | Below 3.0 V |
| Idling | 9 to 14 V | |||
| E4-15 (ELS1) – E8-3 (E1) |
B – L |
Electric load | Light control switch OFF | 0 to 1.5 V |
| Light control switch is in TAILposition | 9 to 14 V | |||
|
E5-3 (ELS3) – E8-3 (E1) |
O – L |
Electric load |
Rear defogger switch OFF (Rear defogger system is not operating) | 0 to 1.5 V |
| Rear defogger switch ON (Rear defogger system is operating) | 9 to 14 V | |||
| E5-17 (TC) – E8-3 (E1) |
R – L |
Terminal TC of DLC 3 | Ignition switch ON | 9 to 14 V |
| E5-1 (TACH) – E8-3 (E1) |
B – L |
Engine speed | Idling | Pulse generation (See waveform 10) |
| E7-32 (PSW) – E8-3 (E1) |
R – L |
P/S pressure switch | Ignition switch ON | 9 to 14 V |
| E4-5 (VPMP) – E8-7 (E01) |
G – B |
Vent valve (built into canister pump module) | Ignition switch ON | 9 to 14 V |
| E4-6 (MPMP) – E8-7 (E01) |
L – B |
Leak detection pump (built into canister pump module) | Leak detection pump OFF | Below 3 V |
| Leak detection pump ON | 9 to 14 V | |||
| E4-31 (PPMP) – E8-28 (E2) | LG – BR | Canister pressure sensor (built into canister pump module) | Ignition switch ON | 3 to 3.6 V |
| E4-14 (FANH) – E8-7 (E01) | GR – B | Fan No. 2, 3 relay | Idling with high engine coolant temperature | Below 1.5 V |
| E8-10 (ALT) – E8-3 (E1) |
Y – L |
Generator | Ignition switch ON | 9 to 14 V |
| E5-33 (CANH) – E8-3 (E1) |
B – L |
CAN communication line | Ignition switch ON | Pulse generation (See waveform 12) |
| E5-34 (CANL) – E8-3 (E1) |
W – L |
CAN communication line | Ignition switch ON | Pulse generation (See waveform 13) |
This does it for our Scion tC ECU Pinout so far, we are always looking to build on what we’ve got, so if you have a request or need a pin in particular let us know.
- Pro Street Online
- www.prostreetonline.com
- 1-888-776-7022
I need your help. I have a scion tc 2014 and i want connect a tachometer so i dont know the pin you can help me please,?
Hi Francisco, thanks for commenting.
Try the number 1 PIN on the E5 connector, for a better look check out this pic :
http://my.prostreetonline.com/wp-content/uploads/2015/02/scion-tc-tach-pin.jpg
Good luck!
I have a 2005 scion tc, and need to rerun or splice the power steering pressure switch wire. It either got damaged or the connector or both.
E7-32
(PSW) – E8-3 (E1)
R – L
Only 1 wire so is it E7-32 or E8-3?
P/S pressure switch Ignition switch ON
Not sure how i get a new connector if needed, but thinking the dealership.
Hi Doug, thanks for reading my Scion ECU guide.
As far as your Power steering switch wire, you’ll just need a multimeter to find out what wire does what. Check out this guide here :
https://my.prostreetonline.com/2014/10/14/how-to-use-a-multimeter/
Using this guide, identify the power and ground wires and the last one is the signal wire! You won’t need a dealership at all. Hope that helps!