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Test D17 - ECA Power Check

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1988 Ford Ranger, 1988 Ford RV Cutaway, 1988 Ford Pickup, 1988 Ford F-Super Duty, and 1988 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform this TEST when directed by other test procedures.
Fig 1: EEC Power Relay Circuit
G72382
  1. Power to ECA Check  - Turn key off and wait 10 seconds. Disconnect ECA 60-pin connector. Inspect connector for damaged pins, corrosion, or loose wires. Repair if necessary. Install breakout box and set DVOM on 20-volt scale. With KOEO, measure voltage between Test Pins No. 37 and 40, and between Test Pins No. 57 and 60.
  2. If either reading is less than 10.5 volts, go to TEST D22  , step 1) for the 2.3L MPFI, 2.5L HSC CFI, or 3.0L MPFI engine. If either reading is less than 10.5 volts, go to TEST A2  , step 1) for all other engines. If both readings are 10.5 volts or more, replace ECA and repeat QUICK TEST  .
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