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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Engine Controls - Self-Diagnostics - 8.1L) >> Diagnostic Tests >> DTC P0724: Brake Switch Circuit - High Input (4L80-E A/T) >> Description

DTC P0724: Brake Switch Circuit - High Input (4L80-E A/T): Description

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The TCC/Stoplamp switch indicates the brake pedal status. The normally closed brake switch supplies a battery voltage signal to the Powertrain Control Module (PCM). The signal voltage circuit opens when the brake pedal is applied. If the PCM detects a closed TCC/Stoplamp switch during decelerations, then DTC P0724 sets.

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