DTC P0703: Brake Switch Sense Circuit: Description

Brake switch sense circuit is monitored when engine is running. Powertrain Control Module (PCM) expects to see signal to be high for 16 cycles while monitoring brake switch signal during acceleration and deceleration modes. DTC may be stored in PCM if improper brakelight switch signal is received. Possible causes for DTC to set are: defective brakelight switch, defective PCM, or defective connectors or wiring.