Test TC: Step 18
18) Enter Output State Check Turn key off and wait 10 seconds, set DVOM on 20-volt scale. A VOM or DVOM MUST be used for this test.
CAUTION:
DO NOT
perform Output State Check on 7.3L diesel-E4OD vehicles, damage to transmission may occur. This check is for 5.8L/7.5L E4OD vehicles only.
Connect DVOM negative (-) test lead to STO circuit at Self-Test connector and positive (+) test lead to battery positive. Jumper STI circuit to SIGNAL RETURN at the Self-Test connector. Perform KOEO Self-Test until all Continuous Codes have been displayed. DVOM will indicate less than 1.0 volt when test is complete. Depress and release throttle. If voltage increases, remain in Output State Check and go to next step. If voltage does not increase, depress throttle to WOT and release. If STO voltage does not increase, go to TEST D16, step 1), leave test equipment hooked up.