Lada 2111 B2699 Engine Trouble Code
What is Lada 2111 B2699?
Lada 2111 B2699 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
B2699 on the Lada 2111
Owners who tow regularly with their Lada 2111 should pay extra attention to B2699. The additional thermal load placed on the transmission fluid accelerates the degradation of the torque converter clutch solenoid, a frequent secondary cause of this code.
Code Information
| Code Type: | OBD-II Body (B) Trouble Code |
| System: | Body |
| Vehicle: | Lada 2111 |
| Brand: | Lada |
| Model: | 2111 |
| Code: | B2699 |
B2699 Lada 2111 Symptoms
Check Engine Light
Illuminated Lada 2111 dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Lada 2111
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Lada 2111
Increased Emissions
Failed emissions test due to B2699
B2699 Code Structure
Understanding what each digit means in the B2699 body trouble code:
| B | 2 | 6 | 9 | 9 |
|---|---|---|---|---|
| Body Code | Fuel And Air Metering (Injector Circuit Malfunctions Only) | Fuel Temperature Sensor B Circuit Range/Performance | Crankshaft Position Sensor A Circuit Malfunction | Reverse Input Circuit |
How to Fix Lada 2111 B2699
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
Brake switch circuit concerns may involve open or shorted BPP circuits, damaged switches, or misadjustment. Verify stoplight function and follow proper self-test procedures per service manual.
Technical Notes:
B2699 DTC indicating a sensor fault does not always mean the sensor itself is bad. The issue may stem from the systems being monitored or even the sensor wiring. Proper diagnosis is essential.
Lada 2111 B2699 Repair Cost
Crankshaft reluctor ring inspection and replacement on the Lada 2111 is a major service item costing $600–$1,100. Given the labour required to access the component, it is advisable to replace the rear crankshaft seal and crankshaft position sensor simultaneously while the area is open.
B2699 Description
B2699 engine trouble code is related to Reverse Input Circuit.
Main Cause
The primary reason for B2699 OBD-II Engine Trouble Code is: Fuel Temperature Sensor B Circuit Range/Performance.
Common B2699 Misdiagnosis on the Lada 2111
The Lada 2111 purge valve for the EVAP system is located in an area prone to heat damage. It is often overlooked in favour of replacing the carbon canister ($120–$200) when the valve itself ($25–$50) is the failed component for B2699.
DIY Repair Guide: B2699 on Lada 2111
For the mechanically confident Lada 2111 owner, a DIY MAF sensor clean is a rewarding first step for B2699. Use a dedicated MAF sensor cleaner spray — not brake cleaner, which damages the sensing element — and allow the sensor to dry for 30 minutes before reinstallation.
Preventing B2699 on the Lada 2111
The Lada 2111 EVAP system requires the fuel tank breather hoses to be flexible and crack-free. A visual inspection at every oil change prevents the slow vacuum leak that triggers B2699 without any drivability symptom.
Frequently Asked Questions — Lada 2111 B2699
A: If your Lada 2111 is within the factory powertrain warranty period (typically 3–5 years or 60,000–100,000 miles depending on region and generation), B2699 repairs caused by component defects should be covered. Bring your service history to the dealer appointment.