Volvo VNL Service Manual page 34

Group 30 Electrical System—VNL, VNM
Components in Lower TEC Panel
A
B
C
D
Accessory and Ignition Power Relays
The Accessory and Ignition Power relays are used to
transfer the heavy current load coming from the battery
to the Ignition/Accessory circuits. They are located under
the relay panel, and may be accessed for troubleshooting
by removing the top TEC tray. For replacement procedure,
see Service Procedures. For more information, refer to the
vehicle electrical schematics and the section on Starting
and Charging in this manual.
32
Central Door Lock Module, Combi Relay, Wiper/Washer Module
Ignition Power Relay
Daytime Running Lights Module
Accessory Power Relay
Design and Function
W3000886