FixVault

Connecting The Breakout Box

Special tools: 

see 9512904

see 9511428

Fig 1: Identifying Rear Electronic Module (REM)
GLL117625Courtesy of VOLVO CARS CORPORATION
CAUTION: When taking readings with the ignition on, first connect the engine control module (ECM) and its connectors, then switch on the ignition. After taking readings, check diagnostic trouble codes (DTCs) for systems connected to the high speed section.