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Home >> Ford >> 1988 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (2.8L EEC IV Testing) >> Quick Test >> Key On-Engine Off Self-Test

Key On-Engine Off Self-Test

WARNING: This page is about a different car, the 1984 Ford Ranger, 1984 Ford Cab & Chassis, and 1984 Ford Bronco II. However, it is still accessible from the selected car via links, so may be relevant.

Connect voltmeter and insert jumper wire to self-test input terminal and output terminal No. 2. This activates the self-test. Turn ignition switch to "Run" position. DO NOT  depress throttle during test. Observe and record On Demand and Continuous codes. When more than 1 code is displayed, always repair problems in the order that codes were displayed. Repair codes as follows:

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