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Home >> Ford >> 1990 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test TC - E4OD Transmission >> Test TC: Step 22
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Test TC: Step 22

22) Checking E4OD Solenoid Harness For Short To Ground  Turn key off and wait 10 seconds. Install breakout box, leaving ECA disconnected. Ensure transmission bulkhead connector is disconnected. Set DVOM on 200-k/ohm scale. Measure resistance between ECA signal test pin (see table in step 12) and test pins No. 40, 46 and 60 at the breakout box. Measure resistance between the ECA signal test pin at the breakout box and chassis ground. If all resistances are greater than 10 k/ohms, go to next step. If resistances are less than 10 k/ohms, repair short circuit(s), remove breakout box, reconnect ECA and solenoid(s). Rerun QUICK TEST.