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 communications
2Original wording in English
LEXUS
LEXUS: SUPPLEMENTAL RESTRAINT SYSTEMS. SOME MODEL VEHICLES MAY EXHIBIT AN SRS LIGHT ON CONDITION WITH DTC B1861 AND/OR B1866. AFTER CONFIRMING THE VEHICLE CONDITION MATCHES THE BULLETIN, IT WILL DIRECT YOU TO REPLACE THE INSTRUMENT PANEL WIRE HARNESS. MODELS LS460 (2007-09); LS600H (2008-09). *PE
FORD
AIR BAG LIGHT ON WITH DIAGNOSTIC TROUBLE CODES B1866 OR B1935. *TT
Check vehicle applicability
8A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Battery Power Supply ECU Circuit Short To Battery
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.