Circuit Description
The brake switch is used to indicate brake pedal status to the Transaxle Control Module (TCM). The brake switch is a normally open switch. Applying the brake pedal closes the switch, supplying voltage to the TCM. Releasing the brake pedal interrupts voltage to the TCM.
NOTE:
If the brake pedal was applied prior to or during the connection of the scan tool to the vehicle, P0703 will be disappeared. If the system is operating normally, the code will then be deleted once the brake pedal is applied with the scan tool connected.
This DTC is stored at start-up. If the TCM receives a brake switch signal after start-up, the DTC will be stored in memory.