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Home >> Ford >> 1990 >> Cutaway 7.3 M >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - Diesel >> Glow Plug Pinpoint Tests >> Pinpoint Test B1 - Wait-To-Start Lamp Stays On
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Pinpoint Test B1 - Wait-To-Start Lamp Stays On

Disconnect the Wait-To-Start lamp connector at control unit See Fig 1. Turn ignition switch to ON position.

If lamp goes ON, service wiring to lamp. If lamp does not go ON, disconnect power at both batteries and replace control unit.

Fig 1: Wait-To-Start Lamp Connector Location
G50C08304Courtesy of FORD MOTOR CO.