Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecu

+B (O5-1) -

GND (O5-3)

R - W-B

Battery

Ignition switch on

10 to 14 V

DIA (O5-2) -

GND (O5-3)

W - W-B

Diagnosis (DLC3)

Ignition switch on

Pulse generation

GND (O5-3) -

Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

FSR- (O5-4) -

GND (O5-3)

B - W-B

Airbag sensor assembly communication line (-)

Always

Below 1 Ω

BGND (O5-5) -

GND (O5-3)

P-G - W-B

Passenger side buckle switch ground line

Always

Below 1 Ω

IG (O5-7) -

GND (O5-3)

BE - W-B

Power source (IGN Fuse)

Ignition switch on

10 to 14 V

FSR+ (O5-8) -

FSR- (O5-4)

W - B

Airbag sensor assembly communication line

Ignition switch on

Pulse generation

BSW (O5-9) -

BGND (O5-5)

G - P-G

Passenger side buckle switch line

Buckle switch ON

Buckle switch OFF

Pulse generation

SGD1 (O4-1) -

GND (O5-3)

L - W-B

Occupant classification sensor front LH ground line

Always

Below 1 Ω

SGD2 (O4-2) -

GND (O5-3)

BE - W-B

Occupant classification sensor front RH ground line

Always

Below 1 Ω

SGD3 (O4-3) -

GND (O5-3)

P-G - W-B

Occupant classification sensor rear LH ground line

Always

Below 1 Ω

SGD4 (O4-4) -

GND (O5-3)

B-R - W-B

Occupant classification sensor rear RH ground line

Always

Below 1 Ω

SVC1 (O4-11) -

SGD1 (O4-1)

B-L - L

Occupant classification sensor front LH power supply line

Ignition switch on, a load is applied to occupant classification sensor front LH

4.5 to 5.1 V

SVC2 (O4-12) -

SGD2 (O4-2)

LG-B - BE

Occupant classification sensor front RH power supply line

Ignition switch on, a load is applied to occupant classification sensor front RH

4.5 to 5.1 V

SVC3 (O4-5) -

SGD3 (O4-3)

B -P-G

Occupant classification sensor rear LH power supply line

Ignition switch on, a load is applied to occupant classification sensor rear LH

4.5 to 5.1 V

SVC4 (O4-6) -

SGD4 (O4-4)

GR-L - B-R

Occupant classification sensor rear RH power supply line

Ignition switch on, a load is applied to occupant classification sensor rear RH

4.5 to 5.1 V

SIG1 (O4-7) -

SGD1 (O4-1)

G - L

Occupant classification sensor front LH signal line

Ignition switch on, a load is applied to occupant classification sensor front LH

Pulse generation

SIG2 (O4-8) -

SGD2 (O4-2)

R-L - BE

Occupant classification sensor front RH signal line

Ignition switch on, a load is applied to occupant classification sensor front RH

Pulse generation

SIG3 (O4-9) -

SGD3 (O4-3)

R-B - P-G

Occupant classification sensor rear LH signal line

Ignition switch on, a load is applied to occupant classification sensor rear LH

Pulse generation

SIG4 (O4-10) -

SGD4 (O4-4)

L-R - B-R

Occupant classification sensor rear RH signal line

Ignition switch on, a load is applied to occupant classification sensor rear RH

Pulse generation