Fault Code P0703
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0703
Brake Switch Input Circuit Malfunction
Code P0703 indicates a malfunction in the brake switch input circuit, which provides input to the transmission control module. This fault affects the detection of brake pedal application.
Part Details
Part Name
Brake Switch
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪150 - ₪450
Engine Location
Brake pedal
Symptoms
- Brake lights not illuminating or staying on
- Unable to shift out of Park
- Cruise control inoperative
- Check Engine Light on
Possible Causes
- 1Faulty brake switch
- 2Damaged or shorted wiring
- 3Bad electrical connector
- 4Transmission Control Module (TCM) issue (rare)
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