K 2500 Truck 4WD V8-379 6.2L DSL VIN J FI (1992)
TCC Diagnostic Chart
Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. The first portion of the test checks for a shorted, internal transmission harness or TCC solenoid.
2. The second part of the test verifies power supply to the TCC solenoid.
3. This step checks CKT 422 for a short to ground.
