Toyota 4Runner manuals

Toyota 4Runner: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK OCCUPANT CLASSIFICATION ECU


Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

a9-1 (+B) - a9-3 (GND)

W - W-B

Battery power supply

Always

11 to 14 V

a9-2 (DIA) - a9-3 (GND)

GR - W-B

Diagnosis (DLC3)

Ignition switch ON

Pulse generation

a9-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

a9-4 (FSR-) - a9-3 (GND)

LG - W-B

Center airbag sensor assembly communication line

Always

Below 1 V

a9-5 (BGND) - a9-3 (GND)

P - W-B

Front passenger side buckle switch ground line

Always

Below 1 V

a9-7 (IG2) - a9-3 (GND)

B - W-B

Ignition switch power supply

Ignition switch ON

11 to 14 V

a9-8 (FSR+) - a9-4 (FSR- )

L - LG

Center airbag sensor assembly communication line

Ignition switch ON

Pulse generation

a9-9 (BSW) - a9-5 (BGND)

G - P

Front passenger side buckle switch line

Always

Pulse generation

a10-1 (SGD1) - a9-3 (GND)

G - W-B

Front occupant classification sensor LH ground line

Always

Below 1 V

a10-2 (SGD2) - a9-3 (GND)

LG - W-B

Front occupant classification sensor RH ground line

Always

Below 1 V

a10-3 (SGD3) - a9-3 (GND)

W - W-B

Rear occupant classification sensor LH ground line

Always

Below 1 V

a10-4 (SGD4) - a9-3 (GND)

BR - W-B

Rear occupant classification sensor RH ground line

Always

Below 1 V

a10-11 (SVC1) - a10-1 (SGD1)

R - G

Front occupant classification sensor LH power supply line

Ignition switch ON, load applied to front occupant classification sensor LH

4.9 to 5.1 V

a10-12 (SVC2) - a10-2 (SGD2)

W - LG

Front occupant classification sensor RH power supply line

Ignition switch ON, load applied to front occupant classification sensor RH

4.9 to 5.1 V

a10-5 (SVC3) - a10-3 (SGD3)

GR - W

Rear occupant classification sensor LH signal line

Ignition switch ON, load applied to rear occupant classification sensor LH

4.9 to 5.1 V

a10-6 (SVC4) - a10-4 (SGD4)

V - BR

Rear occupant classification sensor RH signal line

Ignition switch ON, load applied to rear occupant classification sensor RH

4.9 to 5.1 V

a10-7 (SIG1) - a10-1 (SGD1)

P - G

Front occupant classification sensor LH signal line

Ignition switch ON, load applied to front occupant classification sensor LH

0 to 5.1 V

a10-8 (SIG2) - a10-2 (SGD2)

L - LG

Front occupant classification sensor RH signal line

Ignition switch ON, load applied to front occupant classification sensor RH

0 to 5.1 V

a10-9 (SIG3) - a10-3 (SGD3)

SB - W

Rear occupant classification sensor LH power supply line

Ignition switch ON, load applied to rear occupant classification sensor LH

0 to 5.1 V

a10-10 (SIG4) - a10-4 (SGD4)

B - BR

Rear occupant classification sensor RH power supply line

Ignition switch ON, load applied to rear occupant classification sensor RH

0 to 5.1 V

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Data List / Active Test
DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether ...

Other materials about Toyota 4Runner:

System Description
SYSTEM DESCRIPTION 1. DESCRIPTION (a) In the Variable Flow Control (VFC) power steering system, the power steering ECU assembly receives the steering angle signal, steering zero point memory, the steering speed, vehicle speed signal and engine speed sign ...

Output Speed Sensor Circuit No Signal (P0722)
DESCRIPTION The speed sensor SP2 detects the rotation speed of the transmission output shaft and sends signals to the ECM. The ECM determines the vehicle speed based on these signals. An AC voltage is generated in the speed sensor SP2 coil as the parking ...

© 2016-2022 | www.to4runner.net

0.1129