Checking power supply
- Connect multimeter as follows to measure voltage.
Courtesy of AUDI OF AMERICA, INC.
CONNECTOR TERMINAL 1 & 2 REFERENCE (ECM POWER SUPPLY RELAY)Relay carrier in electronics box, plenum chamber, position 2
terminalMeasure to 1 Engine ground 2 Engine ground - Specified value: approx. battery voltage
If specified value is not attained:
- Check wiring connections.
See appropriate System Wiring Diagram article.