LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2016 >> Jetta SE, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine System & Transmission System [CZTA] - Transmission DTC Tables & Diagnostic Procedures >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Motronic Engine Control Module Power Supply Relay - J271-, CHECKING >> General Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Motronic Engine Control Module Power Supply Relay - J271-, CHECKING: General Description

The following procedure is used to diagnose the Motronic Engine Control Module Power Supply Relay -J271- and the Engine Control Module -J623- power supply voltage that is provided by the Motronic Engine Control Module Power Supply Relay -J271-.

Special tools and workshop equipment required