Using the Breakout Box
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
1
Taking readings with the control module in circuit (circuit in operation)
Breakout box(es) and adapter 9813195 or 9511351 connected between control module and connector in control module box. This allows voltage readings to be taken with the engine running.
2
Taking readings with the control module disconnected (split circuit)
Breakout box(es) and adapter 9813195 or 9511351 connected either to the control module connector or the connector in the control module box. This allows resistance readings to be taken in each circuit without them being affected by other systems.