DTC B1780: Front Occupant Classification Sensor LH Circuit Malfunction [10/2018 - ]: Description
The front occupant classification sensor LH circuit consists of the occupant detection ECU and front occupant classification sensor LH.
DTC B1780 is stored when a malfunction is detected in the front occupant classification sensor LH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1780 | Front Occupant Classification Sensor LH Circuit Malfunction |
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- *1: The front occupant classification sensor LH is built into the front seat adjuster assembly RH.
DTC DETECTION CONDITIONS:
| Vehicle Condition | |||||||
|---|---|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ | ◦ | ◦ | ◦ |
| Malfunction Status | The occupant detection ECU detects a line short in the front occupant classification sensor LH circuit | ◦ | - | - | - | - | - |
| The occupant detection ECU detects a short to ground in the front occupant classification sensor LH circuit | - | ◦ | - | - | - | - | |
| The occupant detection ECU detects a short to B+ in the front occupant classification sensor LH circuit | - | - | ◦ | - | - | - | |
| The occupant detection ECU detects an open in the front occupant classification sensor LH circuit | - | - | - | ◦ | - | - | |
| Front occupant classification sensor LH malfunction | - | - | - | - | ◦ | - | |
| Occupant detection ECU malfunction | - | - | - | - | - | ◦ | |
| Detection Time | - | - | - | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.