2003 Volvo V70 T-5, AutomaticFACTORY OEM SERVICE PROCEDURE

Rear 12 V socket

Fig 1: Identifying Rear 12 V Socket
GLL108096Courtesy of VOLVO CARS OF NORTH AMERICA.

There is a 12V socket on the right-hand side of the cargo compartment. This socket can be used to power a number of accessories.

The socket is directly connected to the 30-supply via a fuse and a directly connected shunt on the rear electronic module (REM).

The rear electronic module (REM) measures the current through the shunt periodically and calculates an average value. This is compared with a limit value to determine if any power consuming component is connected.

This information is transmitted via the Control area network (CAN) to the driver information module (DIM) which displays a text message when a power consuming component is connected (applies only to factory installed 12V sockets).

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.