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Test Description

WARNING: This page is about a different variant/trim than selected.

NOTE: Test numbers refer to numbers on diagnostic chart.

Checks mechanical state of TCC when PCM commands TCC solenoid off. TCC slip speed should increase.

Fig 1: Code 85 Schematic (Corvette) TCC Stuck On

Fig 2: Code 85 Diagnostic Flow Chart (Corvette) TCC Stuck On