Drivers of some 2005-09 Saab 9-7X models may complain of several seemingly unrelated electrical issues. Among the problems you might hear about are that the 4WD system isn't working, the air bag light is on, the fuel gauge performs erratically or that there's a service-stability control message on the driver information panel.
Connecting a scan tool might reveal one or more of the following trouble codes in computer memory: C0186, C0196, C0327, C0455, P0452, P0453, P0461 and U1088.
According to Saab Cars USA Inc., all these troubles are likely due to a loose connection or backed out terminals in the 38-way connector that runs alongside the underhood fuse block. The connector is identified by either C101 or X101, depending on the year of the vehicle.
When you locate the connector, check the female terminals for adequate pin drag. Also check that the male terminals are fully seated in the body cavity of the connector. Finally, make sure that none of the terminals is damaged or bent. Replace terminals as required. Once the connector has good electrical integrity, reroute the wire harness so that there's no strain on the connector when the engine twists during acceleration, which is what causes the electrical issues to begin with.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].