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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P0719: Open TCC/Stop Lamp Switch Circuit During Accelerations >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 GMC Yukon XL, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The TCC/Stop lamp switch indicates the brake pedal status. The normally-closed TCC/Stop lamp switch supplies a B+ signal to the powertrain control module (PCM). The signal voltage circuit opens when the brakes are applied.

If the PCM detects an open TCC/Stop lamp switch circuit during accelerations, then DTC P0719 sets. DTC P0719 is a type C DTC.

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