Last Modified: 08-28-2024 6.11:8.1.0 Doc ID: RM100000000VJNY
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU; 2016 MY Sienna [12/2015 - 08/2016]

TERMINALS OF ECU

1. COMBINATION METER ASSEMBLY

(a) Measure the voltage, resistance and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

D145-1 (B) - Body ground

W - Body ground

Battery

Always

11 to 14 V

D145-3 (+S) - Body ground

LG - Body ground

Speed signal for other system (Output)

Ignition switch ON, wheel being rotated

Pulse generation

(See waveform 1)

D145-4 (SI) - Body ground

GR - Body ground

Speed signal for other system (Input)

Ignition switch ON, wheel being rotated

Pulse generation

(See waveform 1)

D145-6 (FLDS) - Body ground*3

V - Body ground

3rd seat indicator signal

Ignition switch ON, 3rd seat indicator light on

Below 3 V

Ignition switch ON, 3rd seat indicator light off

11 to 14 V

D145-8 (S) - Body ground

Y - Body ground

Oil pressure signal

Engine started

11 to 14 V

Engine not started

Below 1 V

D145-9 (B/LE) - Body ground

Y - Body ground

Brake fluid level signal

Ignition switch ON, brake fluid level not low

11 to 14 V

Ignition switch ON, brake fluid level low

Below 1 V

D145-10 (TIRE) - Body ground

GR - Body ground

Tire pressure warning light signal

Ignition switch ON, tire pressure warning light off

11 to 14 V

Ignition switch ON, tire pressure warning light ON

Below 1 V

D145-11 (E1) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

D145-12 (ILL-) - Body ground

GR - Body ground

Illumination signal

Headlight dimmer switch off

Below 1 V

Headlight dimmer switch in tail or head position

Pulse generation

D145-13 (IG+) - Body ground

GR - Body ground

Ignition switch signal

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

D145-14 (FR) - D145-15 (FE)

G - GR

Fuel level signal

Ignition switch ON, fuel level full

Below 1 V

Ignition switch ON, fuel level low (fuel level warning light on)

4.5 to 9 V

D145-16 (CANL) - Body ground

W - Body ground

CAN communication line

-

-

D145-17 (CANH) - Body ground

P - Body ground

CAN communication line

-

-

D145-18 (MSCH) - Body ground*1

L - Body ground

Local bus communication line

-

-

D145-19 (MSCL) - Body ground*1

W - Body ground

Local bus communication line

-

-

D145-20 (ES) - Body ground

BR - Body ground

Ground

Always

Below 1 Ω

D145-21 (MSSL) - Body ground

V - Body ground

Ground

Always

Below 1 Ω

D145-22 (MSTI) - Body ground*1

P - Body ground

Steering pad switch assembly signal

Ignition switch ON, up, down, right, and left switches on steering pad switch assembly not pushed

4.8 to 5.2 V

Ignition switch ON, up, down, right, or left switches on steering pad switch assembly pushed

Below 1 V

D145-23 (MSM+) - Body ground*1

GR - Body ground

Steering pad switch assembly signal

Ignition switch ON, enter, top and back switches on steering pad switch assembly not pushed

4.8 to 5.2 V

Ignition switch ON, enter, top or back switches on steering pad switch assembly pushed

Below 1 V

D145-23 (MSM+) - Body ground*2

GR - Body ground

Steering pad switch assembly (DISP switch) signal

Ignition switch ON, DISP switch not pressed

4.8 to 5.2 V

Ignition switch ON, DISP switch pressed

Below 1 V

D145-24 (WLVL) - Body ground

L - Body ground

Washer fluid level signal

Ignition switch ON, washer fluid level not low

11 to 14 V

Ignition switch ON, washer fluid level low

Below 1 V

D146-1 (B) - Body ground

W - Body ground

Battery

Always

11 to 14 V

D146-3 (LP) - Body ground

B - Body ground

Security indicator circuit

Ignition switch ON, security indicator light off

Below 1 V

Ignition switch ON, security indicator light blinks

11 to 14 V

D146-4 (CHG-) - Body ground

W - Body ground

Charge warning light signal

Engine running, charge warning light off*2 or "Check Charging System" not displayed*1

11 to 14 V

Engine running, charge warning light on*2 or "Check Charging System" displayed*1

Below 1 V

D146-5 (HAZ) - Body ground

B - Body ground

Hazard warning signal switch signal

Ignition switch ON, hazard warning signal switch not pressed

11 to 14 V

Ignition switch ON, hazard warning signal switch pressed

Below 1 V

D146-7 (LL) - Body ground

Y - Body ground

LH turn indicator light signal (Output)

Ignition switch ON, LH turn indicator light off

Below 1 V

Ignition switch ON, LH turn indicator light blinking

11 to 14 V ←→ Below 1 V

D146-8 (SW) - Body ground

P - Body ground

Turn switch signal

Ignition switch ON, LH and RH turn signal switch off

11 to 14 V

Ignition switch ON, LH or RH turn signal switch on

Below 1 V

D146-9 (ER) - Body ground

GR - Body ground

RH turn indicator light signal (Input)

Ignition switch ON, RH turn signal switch off

11 to 14 V

Ignition switch ON, RH turn signal switch on

Below 1 V

D146-10 (EL) - Body ground

V - Body ground

LH turn indicator light signal (Input)

Ignition switch ON, LH turn signal switch off

11 to 14 V

Ignition switch ON, LH turn signal switch on

Below 1 V

D146-12 (CHK) - Body ground

G - Body ground

MIL input signal

Ignition switch ON, MIL on

Below 3 V

Ignition switch ON, MIL off

11 to 14 V

D146-13 (LR) - Body ground

BE - Body ground

RH turn indicator light signal (Output)

Ignition switch ON, RH turn indicator light off

Below 1 V

Ignition switch ON, RH turn indicator light blinking

11 to 14 V ←→ Below 1 V
  • *1: except 4 Speakers
  • *2: for 4 Speakers
  • *3: w/ Power Seat Type

(1) Waveform 1 (Reference):

Item

Condition

Tool Setting

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

Vehicle Condition

Ignition switch ON, wheel being rotated

HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.