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Home >> Chevrolet >> 1995 >> Corvette ZR-1 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls - Tests W/Codes) >> ECM/Pcm Code Charts >> Code 90, TCC Solenoid Circuit >> Test Description

Test Description

WARNING: This page is about a different variant/trim than selected.
NOTE: Test numbers refer to numbers on diagnostic chart.
  1. Checks for a shorted internal transmission harness or TCC solenoid.
  2. Checks power supply to TCC solenoid.
Fig 1: Code 90 Schematic (Corvette) TCC Solenoid Circuit
G95A14373
Fig 2: Code 90 Diagnostic Flow Chart (Corvette) TCC Solenoid Circuit
G94C31965
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