Section 13 (Engine Controls - Pin Voltage Charts): Introduction

WARNING: This page is about a different car, the 2002 Subaru Outback, 2002 Subaru Legacy, 2002 Subaru Impreza, and 2002 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Pin voltage charts are supplied to reduce diagnostic time. Checking pin voltages at the ECM determines whether it is receiving and transmitting proper voltage signals. Charts may also help determine if ECM harness is open or shorted.

NOTE: Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.