Vehicle Interior. Yaris. Ncp93, 131
Seat Belt. Yaris. Ncp93, 131
Seat Belt Warning System (For Hatchback) -- Terminals Of Ecu |
| COMBINATION METER ASSEMBLY |
Disconnect the D100 combination meter assembly connector.
Measure the voltage and resistance according to the value(s) in the table below.
If the result is not as specified, there may be a malfunction in the wire harness.Terminal No. (Symbol) Wiring Color Terminal Description Switch Condition Specified Condition D100-39 (IG+) - Body ground P - Body ground Ignition switch signal Ignition switch off → ON Below 1 V → 11 to 14 V D100-40 (B) - Body ground L - Body ground Battery Always 11 to 14 V D100-21 (ET) - Body ground W-B - Body ground Ground Always Below 1 Ω Reconnect the combination meter assembly connector.
Measure the check for pulse according to the value(s) in the table below.
If the result is not as specified, the combination meter assembly may have a malfunction.Terminal No. (Symbol) Wiring Color Terminal Description Switch Condition Specified Condition D100-31 (CANL) - Body ground W - Body ground CAN communication line Ignition switch ON Pulse generation D100-32 (CANH) - Body ground G - Body ground CAN communication line Ignition switch ON Pulse generation
| AIRBAG SENSOR ASSEMBLY (for Hatchback with VSC/Built-in Type Yaw Rate Sensor) |
| Terminal No. | Terminal Symbol | Destination |
| D112-13 | CANH | Combination meter assembly (Meter ECU) |
| D112-22 | CANL | Combination meter assembly (Meter ECU) |
| J83-10 | LBE+ | Front seat inner belt LH (Seat belt buckle switch LH) |
| J83-18 | LBE- | Front seat inner belt LH (Seat belt buckle switch LH) |
| J84-16 | FSR+ | Occupant classification ECU |
| J84-24 | FSR- | Occupant classification ECU |
| AIRBAG SENSOR ASSEMBLY (for Hatchback without VSC, for Hatchback with VSC/Separate Type Yaw Rate Sensor) |
| Terminal No. | Terminal Symbol | Destination |
| D112-13 | CANH | Combination meter assembly (Meter ECU) |
| D112-22 | CANL | Combination meter assembly (Meter ECU) |
| J85-11 | LBE+ | Front seat inner belt LH (Seat belt buckle switch LH) |
| J85-12 | LBE- | Front seat inner belt LH (Seat belt buckle switch LH) |
| J86-12 | FSR+ | Occupant classification ECU |
| J86-13 | FSR- | Occupant classification ECU |
| OCCUPANT CLASSIFICATION ECU |
Measure the voltage and check for pulse according to the value(s) in the table below.
Terminal No. Wiring Color Terminal Description Switch Condition Specified Condition X3-1 - X3-5 GR - W Rear occupant classification sensor LH power supply line Ignition switch ON 4.9 to 5.1 V X3-2 - X3-6 V - BR Rear occupant classification sensor RH power supply line Ignition switch ON 4.9 to 5.1 V X3-3 - X3-5 SB - W Rear occupant classification sensor LH signal line Ignition switch ON Pulse generation X3-4 - X3-6 B - BR Rear occupant classification sensor RH signal line Ignition switch ON Pulse generation X3-5 - X4-3 W - W-B Rear occupant classification sensor LH ground line Always Below 1 V X3-6 - X4-3 BR - W-B Rear occupant classification sensor RH ground line Always Below 1 V X4-1 - X4-3 W - W-B Battery power supply Always 11 to 14 V X4-2 - X4-3 GR - W-B Diagnosis (DLC3) Ignition switch ON Below 1 V X4-3 - Body ground W-B - Body ground Ground Always Below 1 V X4-6 - X4-3 B - W-B Ignition switch power supply Ignition switch ON 11 to 14 V X4-7 - X4-4 L - LG Airbag sensor assembly communication line Ignition switch ON Pulse generation X4-8 - X4-5 G - P Front passenger side buckle switch line Ignition switch ON Pulse generation - If the result is not as specified, the occupant classification ECU may have a malfunction.
- If the result is not as specified, the occupant classification ECU may have a malfunction.