Engine Controls - Pin Voltage Charts: Introduction

PIN VOLTAGE/PID VALUES tables are used for diagnosing intermittent symptoms and faults that are unable to be resolved during self-diagnostics. Pin tests ensure the Powertrain Control Module (PCM) is receiving and transmitting proper voltage and other signals.

Parameter Identification (PID) is a more thorough way of checking PCM signals. This includes analog and digital input signals and output signals with calculated values and system status. Two types of PID lists are available, Generic OBD-II PID list and Ford specific PID list. Generic OBD-II list is a standard set of PIDs that all manufacturer's scan tools can access. Generic PIDs are located at the end of each PIN VOLTAGE/PID VALUES table. Ford specific PID list consists of all other PIDs and are retrieved using New Generation Star (NGS) or OBD-II compliant scan tool. See PID TESTING  under TEST PROCEDURES.

Before performing tests, ensure mechanical conditions have been inspected and self-diagnostics has been attempted. Technical Service Bulletins (TSBs) may also be helpful in correcting a hard to diagnose problem.