Vehicle Interior. Yaris. Ncp93, 131
Supplemental Restraint Systems. Yaris. Ncp93, 131
Occupant Classification System (For Sedan) -- Terminals Of Ecu |
OCCUPANT CLASSIFICATION ECU |

Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specification |
+B (J24-1) - GND (J24-3) | V - W-B | Power source (ECU-B Fuse) | Always | 11 to 14 V |
DIA (J24-2) - GND (J24-3) | G - W-B | Diagnosis (DLC3) | Ignition switch on | Pulse generation |
GND (J24-3) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
FSR- (J24-4) - GND (J24-3) | Y - W-B | Center airbag sensor assembly communication line (-) | Always | Below 1 Ω |
BGND (J24-5) - GND (J24-3) | P - W-B | Passenger side buckle switch ground line | Always | Below 1 Ω |
IG (J24-7) - GND (J24-3) | BE - W-B | Power source (IG2 Fuse) | Ignition switch on | 11 to 14 V |
FSR+ (J24-8) - FSR- (J24-4) | GR - Y | Center airbag sensor assembly communication line | Ignition switch on | Pulse generation |
BSW (J24-9) - BGND (J24-5) | BE - P | Passenger side buckle switch line | Buckle switch ON Buckle switch OFF | Pulse generation |
SGD1 (U1-1) - GND (J24-3) | G - W-B | Occupant classification sensor front LH ground line | Always | Below 1 Ω |
SGD2 (U1-2) - GND (J24-3) | O - W-B | Occupant classification sensor front RH ground line | Always | Below 1 Ω |
SGD3 (U1-3) - GND (J24-3) | W - W-B | Occupant classification sensor rear LH ground line | Always | Below 1 Ω |
SGD4 (U1-4) - GND (J24-3) | BR - W-B | Occupant classification sensor rear RH ground line | Always | Below 1 Ω |
SVC1 (U1-11) - SGD1 (U1-1) | R - G | Occupant classification sensor front LH power supply line | Ignition switch on, load is applied to occupant classification sensor front LH | 4.5 to 5.1 V |
SVC2 (U1-12) - SGD2 (U1-2) | W - O | Occupant classification sensor front RH power supply line | Ignition switch on, load is applied to occupant classification sensor front RH | 4.5 to 5.1 V |
SVC3 (U1-5) - SGD3 (U1-3) | GR - W | Occupant classification sensor rear LH power supply line | Ignition switch on, load is applied to occupant classification sensor rear LH | 4.5 to 5.1 V |
SVC4 (U1-6) - SGD4 (U1-4) | V - BR | Occupant classification sensor rear RH power supply line | Ignition switch on, load is applied to occupant classification sensor rear RH | 4.5 to 5.1 V |
SIG1 (U1-7) - SGD1 (U1-1) | SB - G | Occupant classification sensor front LH signal line | Ignition switch on, load is applied to occupant classification sensor front LH | 0.2 to 4.7 V |
SIG2 (U1-8) - SGD2 (U1-2) | L - O | Occupant classification sensor front RH signal line | Ignition switch on, load is applied to occupant classification sensor front RH | 0.2 to 4.7 V |
SIG3 (U1-9) - SGD3 (U1-3) | Y - W | Occupant classification sensor rear LH signal line | Ignition switch on, load is applied to occupant classification sensor rear LH | 0.2 to 4.7 V |
SIG4 (U1-10) - SGD4 (U1-4) | R - BR | Occupant classification sensor rear RH signal line | Ignition switch on, load is applied to occupant classification sensor rear RH | 0.2 to 4.7 V |