Monte Carlo V6-262 4.3L VIN Z TBI (1985)
Fig. 003 Chart C-8 Transmission Converter Clutch
1.
A test light on indicates battery voltage and continuity through the TCC solenoid is OK.
2.
Checks for vehicle speed sensor signal to ECM. Voltage should vary from under 2 to over 8 volts.
3.
Checks for 4th gear signal to ECM. This signal will not prevent TCC engagement, but could cause a change in the engage and disengage speed
points.
4.
Solenoids are turned "ON" or "OFF" by the ECM internal electronic switches called "drivers". Each driver is part of a group of four called
"Quad-Drivers". Failure of on can damage any other driver within the set.
Solenoid coil resistance must measure more than 20 ohms. Less resistance will cause early failure of the ECM "DRIVER". Using an ohmmeter,
