G 30 Van V8-379 6.2L DSL VIN C FI (1992)
Torque Converter Clutch Diagnostic Chart
Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Checks for complete circuit, from key switch through solenoid, up to test point. Test light should be "ON" normally, since ECM has not
completed circuit yet.
2. Checks continuity through brake switch and TCC solenoid.
3. Checks for ECM to complete circuit to ground to energize TCC solenoid and engage TCC. Test light should normally go out when ECM
