Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VIA4
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: 2GR-FE (ENGINE CONTROL): SFI SYSTEM: TERMINALS OF ECM; 2016 MY Sienna [12/2015 - 08/2016]

TERMINALS OF ECM

1. SFI SYSTEM

HINT:

The standard normal voltage between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated.

The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column.

The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A39-3 (+B) - B1-81 (E1)

B - BR

Power source of ECM

Ignition switch ON

11 to 14 V

A39-2 (+B2) - B1-81 (E1)

B - BR

Power source of ECM

Ignition switch ON

11 to 14 V

A39-1 (BATT) - B1-81 (E1)

V - BR

Battery (for measuring the battery voltage and for the ECM memory)

Always

11 to 14 V

B1-41 (+BM) - B1-81 (E1)

L - BR

Power source of electronic throttle control system throttle motor

Always

11 to 14 V

A39-34 (MREL) - B1-81 (E1)

B - BR

EFI MAIN relay operation signal

Ignition switch ON

11 to 14 V

B1-80 (VCTA) - B1-79 (ETA)

Y - B

Power source for throttle position sensor (specific voltage)

Idling with warm engine

4.5 to 5.5 V

B1-67 (VCV1) - B1-81 (E1)

W - BR

Power source for VVT sensor (specific voltage)

Idling with warm engine

4.5 to 5.5 V

B1-66 (VCV2) - B1-81 (E1)

Y - BR

Power source for VVT sensor (specific voltage)

Idling with warm engine

4.5 to 5.5 V

A39-28 (IGSW) - B1-81 (E1)

V - BR

Ignition switch signal

Ignition switch ON

11 to 14 V

A39-52 (FC) - B1-81 (E1)

G - BR

C/OPN relay operation signal (fuel pump control)

Ignition switch ON

11 to 14 V

Idling with warm engine

0 to 1.5 V

A39-36 (STP) - B1-81 (E1)

L - BR

Stop light switch assembly signal

Brake pedal depressed

7.5 to 14 V

Brake pedal released

0 to 1.5 V

A39-35 (ST-) - B1-81 (E1)

LG - BR

Stop light switch assembly signal (opposite to STP terminal)

Ignition switch ON, brake pedal depressed

0 to 1.5 V

Ignition switch ON, brake pedal released

7.5 to 14 V

A39-55 (VPA) - A39-58 (EPA)

L - R

Accelerator pedal position sensor signal (for engine control)

Ignition switch ON, accelerator pedal fully released

0.5 to 1.1 V

Ignition switch ON, accelerator pedal fully depressed

2.6 to 4.5 V

A39-56 (VPA2) - A39-60 (EPA2)

W - LG

Accelerator pedal position sensor signal (for sensor malfunction detection)

Ignition switch ON, accelerator pedal fully released

1.2 to 2.0 V

Ignition switch ON, accelerator pedal fully depressed

3.4 to 4.75 V

A39-30 (VPMP) - B1-81 (E1)

W - BR

Vent valve

(built into canister pump module)

Ignition switch ON

11 to 14 V

A39-49 (MPMP) - B1-81 (E1)

G - BR

Leak detection pump

(built into canister pump module)

Leak detection pump off

0 to 3.0 V

Leak detection pump on

11 to 14 V

B1-121 (PPMP) - B1-81 (E1)

W-L - BR

Canister pressure sensor

(built into canister pump module)

Ignition switch ON

3.0 to 3.6 V

A39-16 (TC) - B1-81 (E1)

P - BR

Terminal TC of DLC3

Ignition switch ON

11 to 14 V

A39-57 (VCPA) - A39-58 (EPA)

GR - R

Power source of accelerator pedal position sensor (for VPA)

Ignition switch ON

4.5 to 5.5 V

A39-59 (VCP2) - A39-60 (EPA2)

B - LG

Power source of accelerator pedal position sensor (for VPA2)

Ignition switch ON

4.5 to 5.5 V

A39-15 (TACH) - B1-81 (E1)

Y - BR

Engine speed signal (for combination meter assembly)

Idling with warm engine

Pulse generation

(See waveform 12)

A39-13 (SPD) - B1-81 (E1)

LG - BR

Vehicle speed signal from combination meter assembly

Driving at 12 mph (20 km/h)

Pulse generation

(See waveform 9)

A39-24 (W) - B1-81 (E1)

G - BR

Malfunction Indicator Lamp (MIL) operation signal

Ignition switch ON

Below 3.0 V

Idling with warm engine

11 to 14 V

A39-10 (CANH) - B1-81 (E1)

B - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation

(See waveform 13)

A39-11 (CANL) - B1-81 (E1)

W - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation

(See waveform 14)

B1-81 (E1) - Body ground

BR - Body ground

Earth (ground) circuit of ECM

Always

Below 1 Ω

B1-86 (#10) - B1-43 (E01)

B1-109 (#20) - B1-43 (E01)

B1-85 (#30) - B1-43 (E01)

B1-108 (#40) - B1-43 (E01)

B1-84 (#50) - B1-43 (E01)

B1-107 (#60) - B1-43 (E01)

L - W-B

Y - W-B

B - W-B

W - W-B

B-W - W-B

G - W-B

Fuel injector assembly operation signal

Ignition switch ON

11 to 14 V

Idling with warm engine

Pulse generation

(See waveform 3)

A39-46 (STA) - B1-81 (E1)

SB - BR

Starter relay operation signal

Cranking

11 to 14 V

B1-52 (OC2+) - B1-51 (OC2-)

P - L

Camshaft timing oil control valve assembly operation signal (for intake side)

Idling

Pulse generation

(See waveform 1)

B1-58 (OC1+) - B1-57 (OC1-)

W - G-R

Camshaft timing oil control valve assembly operation signal (for intake side)

Idling

Pulse generation

(See waveform 1)

B1-87 (VV2+) - B1-88 (VV2-)

P - B

VVT sensor signal (for intake side)

Idling with warm engine

Pulse generation

(See waveform 6)

B1-90 (VV1+) - B1-89 (VV1-)

G - R

VVT sensor signal (for intake side)

Idling with warm engine

Pulse generation

(See waveform 6)

B1-110 (NE+) - B1-111 (NE-)

R - G

Crankshaft position sensor signal

Idling with warm engine

Pulse generation

(See waveform 5, 6)

A39-7 (NEO)*1 - B1-81 (E1)

G - BR

Crankshaft position sensor signal

Idling with warm engine

Pulse generation (See waveform 16)

B1-64 (EV2+) - B1-89 (VV1-)

W-L - R

VVT sensor signal (for exhaust side)

Idling with warm engine

Pulse generation

(See waveform 5)

B1-69 (EV1+) - B1-89 (VV1-)

B - R

VVT sensor signal (for exhaust side)

Idling with warm engine

Pulse generation

(See waveform 5)

B1-56 (OE1+) - B1-55 (OE1-)

G - R

Camshaft timing oil control valve assembly operation signal (for exhaust side)

Idling

Pulse generation

(See waveform 1)

B1-50 (OE2+) - B1-49 (OE2-)

G-R - W

Camshaft timing oil control valve assembly operation signal (for exhaust side)

Idling

Pulse generation

(See waveform 1)

B1-18 (M-) - B1-82 (ME01)

W - W-B

Throttle actuator operation signal (negative terminal)

Idling with warm engine

Pulse generation

(See waveform 11)

B1-19 (M+) - B1-82 (ME01)

B - W-B

Throttle actuator operation signal (positive terminal)

Idling with warm engine

Pulse generation

(See waveform 10)

B1-42 (E02) - Body ground

W-B - Body ground

Earth (ground) circuit of ECM

Always

Below 1 Ω

B1-40 (IGT1) - B1-81 (E1)

B1-39 (IGT2) - B1-81 (E1)

B1-38 (IGT3) - B1-81 (E1)

B1-37 (IGT4) - B1-81 (E1)

B1-36 (IGT5) - B1-81 (E1)

B1-35 (IGT6) - B1-81 (E1)

L - BR

P - BR

R-B - BR

L - BR

Y - BR

W-L - BR

Ignition coil assembly (ignition signal)

Idling with warm engine

Pulse generation

(See waveform 7)

B1-17 (GE01) - B1-81 (E1)

BR - BR

Shielded earth (ground) circuit of throttle actuator

Always

Below 1 V

B1-114 (OX1B) - B1-115 (EX1B)

B1-112 (OX2B) - B1-113 (EX2B)

W - R-B

B - BR

Heated oxygen sensor signal

Engine speed is maintained at 2500 rpm for 2 minutes after warming up engine

Pulse generation

(See waveform 2)

B1-77 (VTA2) - B1-79 (ETA)

P - B

Throttle position sensor signal (for sensor malfunction detection)

Ignition switch ON, accelerator pedal fully released

2.1 to 3.1 V

Ignition switch ON, accelerator pedal fully depressed

4.6 to 5.0 V

B1-78 (VTA1) - B1-79 (ETA)

W - B

Throttle position sensor signal (for engine control)

Ignition switch ON, throttle valve fully closed

0.5 to 1.1 V

Ignition switch ON, throttle valve fully open

3.2 to 4.8 V

B1-76 (THW) - B1-97 (ETHW)

G - BR

Engine coolant temperature sensor signal

Idling, engine coolant temperature 60 to 120°C (140 to 248°F)

0.2 to 1.0 V

B1-73 (THA) - B1-98 (ETHA)

L - W-B

Intake air temperature sensor signal

Idling, intake air temperature 0 to 80°C (32 to 176°F)

0.5 to 3.4 V

B1-104 (IGF1) - B1-81 (E1)

LG - BR

Ignition coil assembly (ignition confirmation signal)

Ignition switch ON

4.5 to 5.0 V

Idling with warm engine

Pulse generation

(See waveform 7)

B1-61 (AICV) - B1-81 (E1)

R - BR

Vacuum switching valve for air intake control system operation signal

Ignition switch ON

11 to 14 V

B1-74 (VG) - B1-75 (E2G)

R - LG

Mass air flow meter sub-assembly signal

Idling, shift lever in P or N, A/C switch off

0 to 3.0 V

B1-62 (ACIS) - B1-81 (E1)

Y - BR

Intake air control valve for ACIS (Acoustic Control Induction System) operation signal

Ignition switch ON

11 to 14 V

B1-63 (PRG) - B1-81 (E1)

W-L - BR

Purge VSV for EVAP system operation signal

Ignition switch ON

11 to 14 V

Idling with warm engine, under purge control

Pulse generation

(See waveform 8)

B1-20 (HA2A) - B1-21 (E05)

R - BR

Air fuel ratio sensor heater operation signal

Idling

Pulse generation (See waveform 15)

Ignition switch ON

11 to 14 V

B1-22 (HA1A) - B1-23 (E04)

B-W - W-B

Air fuel ratio sensor heater operation signal

Idling

Pulse generation (See waveform 15)

Ignition switch ON

11 to 14 V

B1-44 (HT2B) - B1-46 (E03)

W-L - W-B

Heated oxygen sensor heater operation signal

Idling

Below 3.0 V

Ignition switch ON

11 to 14 V

B1-45 (HT1B) - B1-46 (E03)

R - W-B

Heated oxygen sensor heater operation signal

Idling

Below 3.0 V

Ignition switch ON

11 to 14 V

B1-83 (ACM) - B1-81 (E1)

P - BR

Duty vacuum switching valve for active control engine mount system operation signal

Ignition switch ON

11 to 14 V

B1-120 (NSW) - B1-81 (E1)

G-R - BR

Park/Neutral position switch signal

Ignition switch ON, shift lever in P or N

Below 3.0 V

Ignition switch ON, shift lever in any position other than P or N

11 to 14 V

B1-117 (KNK2) - B1-116 (EKN2)

R - G

Knock sensor signal

Engine speed maintained at 4000 rpm after warming up engine

Pulse generation

(See waveform 4)

B1-94 (KNK1) - B1-93 (EKNK)

B - W

Knock sensor signal

Engine speed maintained at 4000 rpm after warming up engine

Pulse generation

(See waveform 4)

B1-126 (A1A+) - B1-81 (E1)

BR - BR

Air fuel ratio sensor

Ignition switch ON

3.3 V*2

B1-125 (A1A-) - B1-81 (E1)

Y - BR

Air fuel ratio sensor

Ignition switch ON

2.9 V*2

B1-103 (A2A+) - B1-81 (E1)

P - BR

Air fuel ratio sensor

Ignition switch ON

3.3 V*2

B1-102 (A2A-) - B1-81 (E1)

L - BR

Air fuel ratio sensor

Ignition switch ON

2.9 V*2

B1-2 (P) - B1-81 (E1)

B-W - BR

P shift position switch signal

Ignition switch ON and shift lever in P

11 to 14 V

Ignition switch ON and shift lever in any position other than P

0 to 1.5 V

B1-26 (R) - B1-81 (E1)

R-B - BR

R shift position switch signal

Ignition switch ON and shift lever in R

11 to 14 V

Ignition switch ON and shift lever in any position other than R

0 to 1.5 V

B1-25 (N) - B1-81 (E1)

LG - BR

N shift position switch signal

Ignition switch ON and shift lever in N

11 to 14 V

Ignition switch ON and shift lever in any position other than N

0 to 1.5 V

B1-27 (D) - B1-81 (E1)

Y - BR

D shift position switch signal

Ignition switch ON and shift lever in D

11 to 14 V

Ignition switch ON and shift lever in any position other than D

0 to 1.5 V

A39-25 (S) - B1-81 (E1)

W - BR

S shift position switch signal

Ignition switch ON and shift lever in S

11 to 14 V

Ignition switch ON and shift lever in any position other than S

0 to 1.5 V

A39-27 (SFTD) - B1-81 (E1)

V - BR

Down shift switch signal

Ignition switch ON and shift lever in S

11 to 14 V

Ignition switch ON and shift lever in S, the "-" range (down shift) selected

0 to 1.5 V

A39-38 (SFTU) - B1-81 (E1)

L - BR

Up shift switch signal

Ignition switch ON and shift lever in S

11 to 14 V

Ignition switch ON and shift lever in S, the "+" range (up shift) selected

0 to 1.5 V

A39-48 (FPR) - B1-81 (E1)

L - BR

Fuel pump control

Cranking

11 to 14 V

Idling

11 to 14 V

B1-24 (CAN+) - B1-81 (E1)

L - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation

(See waveform 13)

B1-1 (CAN-) - B1-81 (E1)

R - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation

(See waveform 14)

A39-8 (CANP)*1 - B1-81 (E1)

R - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation (See waveform 13)

A39-9 (CANN)*1 - B1-81 (E1)

W - BR

CAN communication line

Engine stopped and ignition switch ON

Pulse generation (See waveform 14)

A39-33 (ELS2) - Body ground

V - Body ground

Idle up signal

Ignition switch ON, and appliance 50 W or more

6.0 V or more

*1: w/ Smart Key System

*2: The ECM terminal voltage is constant regardless of the output voltage from the sensor.

(a) WAVEFORM 1

(1) Camshaft timing oil control valve assembly operation signal

ECM Terminal Name

Between OC1+ and OC1-, OC2+ and OC2-, OE1+ and OE1-, or OE2+ and OE2-

Tester Range

5 V/DIV., 1 ms./DIV.

Condition

Idling

HINT:

The wavelength becomes shorter as the engine speed increases.

(b) WAVEFORM 2

(1) Heated oxygen sensor signal

ECM Terminal Name

Between OX1B and EX1B, or OX2B and EX2B

Tester Range

200 mV/DIV., 200 ms./DIV.

Condition

Engine speed is maintained at 2500 rpm for 2 minutes after warming up engine

HINT:

In the Data List, item O2S B1S2 and O2S B2S2 shows the ECM values from the heated oxygen sensor.

(c) WAVEFORM 3

(1) Fuel injector assembly operation signal

ECM Terminal Name

Between #10 (to #60) and E01

Tester Range

30 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.

(d) WAVEFORM 4

(1) Knock sensor signal

ECM Terminal Name

Between KNK1 and EKNK, or KNK2 and EKN2

Tester Range

1 V/DIV., 1 ms./DIV.

Condition

Engine speed maintained at 4000 rpm after warming up engine

HINT:

  • The wavelength becomes shorter as the engine speed increases.
  • The waveforms and amplitudes displayed differ slightly depending on the vehicle.

(e) WAVEFORM 5

(1) VVT sensor (for exhaust side) signal (A)

(2) Crankshaft position sensor signal (B)

ECM Terminal Name

(A) EV1+ and VV1-, or EV2+ and VV1-

(B) Between NE+ and NE-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.

(f) WAVEFORM 6

(1) VVT sensor (for intake side) signal (A)

(2) Crankshaft position sensor signal (B)

ECM Terminal Name

(A) Between VV1+ and VV1-, VV2+ and VV2-

(B) Between NE+ and NE-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.

(g) WAVEFORM 7

(1) Igniter IGT signal (from ECM to igniter) and igniter IGF signal (from igniter to ECM)

ECM Terminal Name

(1) Between IGT (1 to 6) and E1

(2) Between IGF1 and E1

Tester Range

2 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.

(h) WAVEFORM 8

(1) Purge VSV for EVAP system operation signal

ECM Terminal Name

Between PRG and E1

Tester Range

10 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine, under purge control

HINT:

If the waveform is not similar to that shown in the illustration, check the waveform again after idling for 10 minutes or more.

(i) WAVEFORM 9

(1) Vehicle speed signal

ECM Terminal Name

Between SPD and E1

Tester Range

2 V/DIV., 20 ms./DIV.

Condition

Driving at 20 km/h (12 mph)

HINT:

  • The wavelength becomes shorter as the vehicle speed increases.
  • Depending on the vehicle, the output waveform voltage may rise to 12 V if influenced by optionally installed systems.

(j) WAVEFORM 10

(1) Throttle actuator operation signal (positive terminal)

ECM Terminal Name

Between M+ and ME01

Tester Range

5 V/DIV., 1 ms./DIV.

Condition

Idling with warm engine

HINT:

The duty ratio varies depending on the throttle actuator operation.

(k) WAVEFORM 11

(1) Throttle actuator operation signal (negative terminal)

ECM Terminal Name

Between M- and ME01

Tester Range

5 V/DIV., 1 ms./DIV.

Condition

Idling with warm engine

HINT:

The duty ratio varies depending on the throttle actuator operation.

(l) WAVEFORM 12

(1) Engine speed signal

ECM Terminal Name

Between TACH and E1

Tester Range

5 V/DIV., 10 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.

(m) WAVEFORM 13 (Reference)

(1) CAN communication signal

ECM Terminal Name

Between CANH and E1, CAN+ and E1 or CANP and E1

Tester Range

1 V/DIV., 10 μs./DIV.

Condition

Engine stopped and ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

(n) WAVEFORM 14 (Reference)

(1) CAN communication signal

ECM Terminal Name

Between CANL and E1, CAN- and E1 or CANN and E1

Tester Range

1 V/DIV., 10 μs./DIV.

Condition

Engine stopped and ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

(o) WAVEFORM 15

(1) Air fuel ratio sensor heater operation signal

ECM Terminal Name

Between HA1A and E04 or HA2A and E05

Tester Range

5 V/DIV., 10 ms./DIV.

Condition

Idling

HINT:

The wavelength becomes shorter as the engine speed increases.

(p) WAVEFORM 16

(1) Crankshaft position sensor signal

ECM Terminal Name

Between NEO and E1

Tester Range

5 V/DIV., 2 ms./DIV.

Condition

Idling with warm engine

HINT:

The wavelength becomes shorter as the engine speed increases.