Vehicle: 2008 BMW 335xi, AWD (E90), L6-3.0L Turbo (N54), Automatic Transmission
Mileage: 118,669
Problem: When trying to start the engine, the starter momentarily engaged then stopped.
Details: The tech found that, while attempting to crank/start the engine, the starter solenoid was only powered for a split second. He connected a scan tool and retrieved an A0C1 (Output Terminal 50) diagnostic trouble code.
The ALLDATA Tech-Assist consultant suggested he open the Car Access System (CAS) module to inspect for signs of burned spots on the circuit board.
Confirmed Repair: When the tech opened the CAS module, he found several burned circuits. He replaced the CAS module. After the repair, the engine started and ran normally.
The ALLDATA Tech-Assist team fields cases like this every day. See how Tech-Assist can help your shop save time and money with on-call diagnostic support from ASE-certified Master Technicians. More Tech Tips
Not an ALLDATA customer? For access to this valuable experience-based repair data and reliable OEM information, start a free trial today.
If you would like to read more articles like this one please subscribe to ALLDATA News.