PINPOINT TEST QE: Electronic Throttle Control (ETC) System: Introduction

This pinpoint test is intended to diagnose the informational powertrain control module (PCM) DTCs.

The informational DTCs are the result of limited operating strategy (LOS) or failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of a PCM, harness, or component concern.

Circuit DTCs can be accompanied by the informational DTCs, and should be diagnosed first. Informational DTCs without circuit DTCs may or may not indicate the actual concern and should be diagnosed as a symptom.

Fig 1: Identifying EGR System Module (ESM) Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector 

For PCM connector views or reference values, refer to REFERENCE VALUES article.