Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
B1881PASSENGER PRETENSIONER CIRCUIT OPEN
B1881PASSENGER PRETENSIONER CIRCUIT RESISTANCE HIGH
Manufacturer communications
15Original wording in English
AUDI
This bulletin provides instructions for when DTC B188101 is found during the pre-delivery inspection.
MAZDA
AIRBAG WARNING LIGHT COMES ON WITH CODE B1877/B1881. *KB
FORD
RESTRAINT SYSTEM - SAFETY BELT BUCKLE AND PRETENSIONER DIAGNOSTIC TROUBLE CODE (DTC) B1877 AND/OR B1881. *TT
MAZDA
PRETENSIONER DIAGNOSTIC TROUBLE CODES (DTCS) B1877, B1881. ORIGINAL NOT RECEIVED. *TT
Check vehicle applicability
22A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | Q4 E-TRON ↗ | 2023 |
| Audi | Q4 E-TRON ↗ | 2022 |
| Ford | ESCAPE ↗ | 2004 |
| Ford | ESCAPE ↗ | 2003 |
| Ford | ESCAPE ↗ | 2002 |
| Ford | ESCAPE ↗ | 2001 |
| Ford | FOCUS ↗ | 2003 |
| Ford | FOCUS ↗ | 2002 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Seatbelt Passenger Pretensioner Circuit Open
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.