DTC B1617/84: Lost Communication with Front Airbag Sensor LH; DTC B1618/84: Front Airbag Sensor LH Initialization Incomplete [02/2017 - 10/2017]: Description
The front airbag sensor LH circuit consists of the airbag sensor assembly and front airbag sensor LH.
The front airbag sensor LH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.
These DTCs are stored when a malfunction is detected in the front airbag sensor LH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Test Mode / Check Mode |
|---|---|---|---|---|
| B1617/84 | Lost Communication with Front Airbag Sensor LH | Any of the following conditions is met:
|
|
Does not apply to test/check mode |
| B1618/84 | Front Airbag Sensor LH Initialization Incomplete | Any of the following conditions is met:
|
|
Does not apply to test/check mode |
DTC DETECTION CONDITIONS (B1617/84):
| Vehicle Condition | |||||||
|---|---|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag sensor assembly detects a line short in the front airbag sensor LH circuit | ◦ | - | - | - | - | - |
| The airbag sensor assembly detects a short to ground in the front airbag sensor LH circuit | - | ◦ | - | - | - | - | |
| The airbag sensor assembly detects a short to B+ in the front airbag sensor LH circuit | - | - | ◦ | - | - | - | |
| The airbag sensor assembly detects an open in the front airbag sensor LH circuit | - | - | - | ◦ | - | - | |
| Front airbag sensor LH malfunction | - | - | - | - | ◦ | - | |
| Airbag sensor assembly malfunction | - | - | - | - | - | ◦ | |
| Detection Time | - | - | - | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1618/84):
| Vehicle Condition | |||||||
|---|---|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag sensor assembly detects a line short in the front airbag sensor LH circuit | ◦ | - | - | - | - | - |
| The airbag sensor assembly detects a short to ground in the front airbag sensor LH circuit | - | ◦ | - | - | - | - | |
| The airbag sensor assembly detects a short to B+ in the front airbag sensor LH circuit | - | - | ◦ | - | - | - | |
| The airbag sensor assembly detects an open in the front airbag sensor LH circuit | - | - | - | ◦ | - | - | |
| Front airbag sensor LH malfunction | - | - | - | - | ◦ | - | |
| Airbag sensor assembly 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.