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Home >> Ford >> 1987 >> Ranger 2D Pickup, 2.0 C >> Repair and Diagnosis >> Engine Performance >> System >> Idle Speed Control System - 2.0L >> Testing >> Test 4 - Code 12 >> Verifying DC Motor Movement
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Verifying DC Motor Movement

Operate vehicle to normal operating temperature. Initialize self-test. Note DC motor movement during self-test. Proceed to Test 2 step 4) if movement is apparent. Adjust idle if no movement is apparent.