DTC B1855: Short in Rear Side Squib LH Circuit; DTC B1856: Open in Rear Side Squib LH Circuit; DTC B1857: Short to GND in Rear Side Squib LH Circuit; DTC B1858: Short to B+ in Rear Side Squib LH Circuit [10/2018 - ]: Description
The rear side squib LH circuit consists of the airbag ECU assembly and rear seat airbag assembly LH.
The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the rear side squib LH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1855 | Short in Rear Side Squib LH Circuit |
|
|
Comes on | Applies to check mode |
| B1856 | Open in Rear Side Squib LH Circuit |
|
|
Comes on | Applies to check mode |
| B1857 | Short to GND in Rear Side Squib LH Circuit |
|
|
Comes on | Applies to check mode |
| B1858 | Short to B+ in Rear Side Squib LH Circuit |
|
|
Comes on | Applies to check mode |
DTC DETECTION CONDITIONS (B1855)
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag ECU assembly detects a line short in the rear side squib LH circuit during the primary check | ◦ | - | - |
| Rear side squib LH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1856)
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag ECU assembly detects an open in the rear side squib LH circuit | ◦ | - | - |
| Rear side squib LH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1857)
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag ECU assembly detects a short to ground in the rear side squib LH circuit | ◦ | - | - |
| Rear side squib LH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1858)
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag ECU assembly detects a short to B+ in the rear side squib LH circuit | ◦ | - | - |
| Rear side squib LH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.