Pinpoint Test W: Injector Driver Module Enable: Description

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1996 Ford RV Cutaway, 1996 Ford Pickup, 1996 Ford F-Super Duty, 1996 Ford Econoline, and 1996 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Injector Driver Module Enable (IDM-EN) output provides shut-down control function for fuel system by shutting off IDM relay. DTC 1662 indicates IDM-EN circuit failure.

Perform this test when directed here by QUICK TEST. This pinpoint test is intended to diagnose:

Injector Driver Module (IDM) relay.
Wiring harness circuit; (IDM-EN).
Powertrain Control Module (PCM).

Fig 1: Injector Driver Module Enable Circuit (Econoline)

Courtesy of FORD MOTOR CO.

Fig 2: Injector Driver Module Enable Circuit (Pickup)

Courtesy of FORD MOTOR CO.

Fig 3: Identifying IDM & PCM Power Circuits (Econoline)

Courtesy of FORD MOTOR CO.

Fig 4: Identifying IDM & PCM Power Circuits (Pickup)

Courtesy of FORD MOTOR CO.