Using the breakout box

Fig 1: Identifying AW, LH And EZK Control Systems

Courtesy of VOLVO CARS OF NORTH AMERICA.

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.