Fault Code B0340
Code meaning, symptoms, possible causes, part number, and estimated cost.
B0340
Brake Lamp Switch Circuit Fault
This code indicates a fault in the brake lamp switch circuit. This can cause the brake lights not to illuminate when the pedal is pressed, jeopardizing driving safety and the drivers behind.
Part Details
Part Name
Brake Lamp Switch
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪250 - ₪700
Engine Location
Mounted on the brake pedal
Symptoms
- Brake lights do not illuminate
- Brake lights are constantly on
- Cruise control inoperative
- ABS system fault message
Possible Causes
- 1Faulty or stuck brake switch
- 2Damaged or shorted wiring
- 3Blown fuse in the brake circuit
- 4Improper switch installation
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