DTC B1900: Short in P/T Squib (RH) Circuit; DTC B1901: Open in P/T Squib (RH) Circuit; DTC B1902: Short in P/T Squib (RH) Circuit (to Ground); DTC B1903: Short in P/T Squib (RH) Circuit (to +B) [10/2018 - ]: Description
The front pretensioner squib RH circuit consists of the airbag ECU assembly and front seat outer belt assembly RH.
The airbag ECU assembly uses this circuit to deploy the pretensioner when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the front pretensioner squib RH circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1900 | Short in P/T Squib (RH) Circuit |
|
|
Comes on | Applies to check mode |
| B1901 | Open in P/T Squib (RH) Circuit |
|
|
Comes on | Applies to check mode |
| B1902 | Short in P/T Squib (RH) Circuit (to Ground) |
|
|
Comes on | Applies to check mode |
| B1903 | Short in P/T Squib (RH) Circuit (to +B) |
|
|
Comes on | Applies to check mode |
DTC DETECTION CONDITIONS (B1900)
| 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 front pretensioner squib RH circuit during the primary check | ◦ | - | - |
| Front pretensioner squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1901)
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ | ◦ |
| Malfunction Status | The airbag ECU assembly detects an open in the front pretensioner squib RH circuit | ◦ | - | - |
| Front pretensioner squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1902)
| 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 front pretensioner squib RH circuit | ◦ | - | - |
| Front pretensioner squib RH malfunction | - | ◦ | - | |
| Airbag ECU assembly malfunction | - | - | ◦ | |
| Detection Time | - | - | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITIONS (B1903)
| 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 front pretensioner squib RH circuit | ◦ | - | - |
| Front pretensioner 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.