DTC B1850: Short in Rear Side Squib RH Circuit; DTC B1851: Open in Rear Side Squib RH Circuit; DTC B1852: Short to GND in Rear Side Squib RH Circuit; DTC B1853: Short to B+ in Rear Side Squib RH Circuit [10/2018 - ]: Description
The rear side squib RH circuit consists of the airbag ECU assembly and rear seat airbag assembly RH.
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 RH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1850 | Short in Rear Side Squib RH Circuit |
|
|
Comes on | Applies to check mode |
| B1851 | Open in Rear Side Squib RH Circuit |
|
|
Comes on | Applies to check mode |
| B1852 | Short to GND in Rear Side Squib RH Circuit |
|
|
Comes on | Applies to check mode |
| B1853 | Short to B+ in Rear Side Squib RH Circuit |
|
|
Comes on | Applies to check mode |
DTC DETECTION CONDITIONS (B1850)
| 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 RH circuit during the primary check | ◦ | - | - |
| Rear side squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1851)
| 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 RH circuit | ◦ | - | - |
| Rear side squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1852)
| 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 RH circuit | ◦ | - | - |
| Rear side squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1853)
| 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 RH circuit | ◦ | - | - |
| Rear side squib RH 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.