Pinpoint Test W: Injector Driver Module Enable: Description

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.