Test Tb: Step 4

4) Check VPWR Voltage to Transmission Solenoids  With key off, breakout box installed and ECA connected, set DVOM on 20-volt scale. Disconnect transmission bulkhead connector. Turn key on, leaving engine off. Measure voltage between test pins No. 37 and 57 at the bulkhead connector and chassis ground. If voltage is greater than 10.5 volts, go to next step. If voltage is less than 10.5 volts, replace ECA. Remove breakout box and reconnect all components. Rerun QUICK TEST.