1996 PCED OBDI | SECTION 18: Diesel Diagnosis — 7.3L DI Engine |
W: Injector Driver Module Enable (IDM-EN) Introduction | W: Pinpoint Tests |
You should enter this pinpoint test only when directed here from the symptom flowcharts.
This pinpoint test is intended to diagnose only the following:
The IDM-EN output provides the shut-down control function for the fuel system by shutting off the IDM relay.




1662 = IDM-EN circuit failure.
| W: Pinpoint Tests |