Pinpoint Test Notes

OPTIONAL USE OF THE EEC-IV MONITOR BOX
An EEC-IV Monitor Box can be used as a substitute for the EEC-IV Breakout Box during pinpoint testing. The EEC-IV Breakout Box and Monitor Box are pin for pin compatible when referencing the 60-pin connector.

DO

- Turn the key OFF and isolate both ends of a circuit whenever checking for shorts or continuity unless directed otherwise.
- Disconnect solenoids and switches from the harness before measuring for continuity, resistance or energizing by way of a 12 volt source.
- When disconnecting connectors, inspect for damaged or pushed-out pins, corrosion, loose wires, etc. Service as necessary.

DON'T

- Go to the Pinpoint Test Section unless directed. If the Diagnostic Routines are not followed, incorrect results and replacement of non-defective components may occur.
- Replace any parts unless directed by a test procedure.
- Measure voltage or resistance directly at the Powertrain Control Module (PCM) connector.
- Perform any diagnostic procedure with the vehicle connected to a battery charger.