OCCUPANT CLASSIFICATION SYSTEM TERMINALS OF ECU

  1. OCCUPANT DETECTION ECU

  2. AIRBAG SENSOR ASSEMBLY

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C238368E09
Tip:

Since the occupant detection ECU uses waterproof connectors, the voltage and waveform cannot be inspected directly. Standard voltage and resistance readings and waveforms are indicated for reference only.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specification

d16-1 - d16-3

W - W-B

Power source

Always

11 to 14 V

d16-2 - d16-3

GR - W-B

Diagnosis (DLC3)

Power switch on (IG), GTS not connected to DLC3

-

d16-3 - Body ground

W-B - Body ground

Ground

Always

Below 1 V

d16-4 - d16-3

LG - W-B

Airbag sensor assembly communication line

Always

Below 1 V

d16-5 - d16-3

P - W-B

Front passenger side buckle switch ground line

Always

Below 1 V

d16-6 - d16-3

B - W-B

IG power source

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

d16-7 - d16-4

L - LG

Airbag sensor assembly communication line

Power switch on (IG)

Pulse generation

d16-8 - d16-5

G - P

Front passenger side buckle switch line

Always

Pulse generation

d15-1 - d15-5

R - G

Front occupant classification sensor LH power supply line

Power switch on (IG)

4.9 to 5.1 V

d15-2 - d15-6

GR - W

Rear occupant classification sensor LH power supply line

Power switch on (IG)

4.9 to 5.1 V

d15-3 - d15-5

P - G

Front occupant classification sensor LH signal line

Power switch on (IG)

Pulse generation

d15-4 - d15-6

SB - W

Rear occupant classification sensor LH signal line

Power switch on (IG)

Pulse generation

d15-5 - d16-3

G - W-B

Front occupant classification sensor LH ground line

Always

Below 1 Ω

d15-6 - d16-3

W - W-B

Rear occupant classification sensor LH ground line

Always

Below 1 Ω