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Home >> GMC >> 1992 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - Diagnosis - 4L80-E >> Diagnostic Charts >> Code 83 - TCC Solenoid Circuit >> Diagnostic Aids

Diagnostic Aids

Check transmission pass-through connector and PCM/TCM for poor connections. Factory-installed PCM has an internal circuit breaker and should not need to be replaced.

Fig 1: Code 83 Troubleshooting Diagnostic Flow Chart
G92H14123Courtesy of GENERAL MOTORS CORP.
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