Engine Controls - Pin Voltage Charts: Introduction

Pin voltage charts are used for diagnosing intermittent symptoms and faults that are unable to be resolved during self-diagnostics. Pin voltage tests ensure the ECM is receiving and transmitting proper voltage and other signals. Before performing pin voltage tests, ensure engine mechanical condition has been thoroughly inspected and self-diagnostics has been attempted. Technical Service Bulletins (TSBs) may also be helpful in correcting a hard to diagnose problem.

Parameter Identification Value (PID) charts are used to compare inputs and outputs which are detected or supplied by ECM with manufacturer's specifications using Nissan's CONSULT-II scan tool.