LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Tracker 4D Utility, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Basic Fuel System Checks >> Main Relay Circuit Diagnosis >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

The main relay is controlled by PCM. The PCM provides a ground for the relays coil anytime ignition is on. The main relay supplies ignition positive voltage to fuel pump relay, fuel injectors, MAF sensor, EVAP control system solenoids, EGR valve, IAC valve and PCM.