P0703 Mercedes-Benz Brake Light Switch Plausibility
Possible causes
– Faulty Brake Switch
– Misadjusted Brake Switch
– Brake Switch harness is open or shorted
– Brake Switch circuit poor electrical connection
– Misadjusted Brake Switch
– Brake Switch harness is open or shorted
– Brake Switch circuit poor electrical connection
Tech description
Check if the stop light works with the brake pedal, if the brake lights are inoperative, replaced or adjust the brake switch.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Brake lights inoperative
– Brake lights inoperative
P0703 Mercedes-Benz Description
Engine Control Module (ECM) detected accelerations and decelerations with no brake switch change
Mercedes-Benz Vehicle:Mercedes-Benz C-Class,Mercedes-Benz CL-Class,Mercedes-Benz CLK-Class,Mercedes-Benz CLS-Class,Mercedes-Benz E-Class,Mercedes-Benz G-Class,Mercedes-Benz GL-Class,Mercedes-Benz GLK-Class,Mercedes-Benz M-Class,Mercedes-Benz R-Class,Mercedes-Benz S-Class,Mercedes-Benz SL-Class,Mercedes-Benz SLK-Class,Mercedes-Benz SLS-Class,Mercedes-Benz Sprinter 2500,Mercedes-Benz Sprinter 3500,