LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2016 >> SS Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls And Fuel - 6.2L (LS3) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P0641 or P0651 (ECM): 5V Reference Circuit >> Circuit/System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Description

The engine control module (ECM) has 2 internal 5V reference circuits. Each internal reference circuit provides 5V reference for more than one sensor. A short to ground or short to voltage on one of the external 5V reference circuits can affect all the components connected to the same internal 5V reference circuit.

scientia non olet · About LEMON Manuals