Engine Controls - Pin Voltage Charts 4.6L: Introduction

Pin voltage (value) charts are used for diagnosing intermittent symptoms and faults that are unable to be resolved during self-diagnostics. Pin tests ensure the Powertrain Control Module is receiving and transmitting proper voltage and other signals. Before attempting pin tests, ensure mechanical conditions have been thoroughly inspected and self-diagnostics has been attempted. Service bulletins may also be helpful in correcting a hard to diagnose problem.