FAQ
TL;DR: 67 % of members (2/3) solved CEM-B10A200 via a direct reset in VIDA; “Delete the crash and the error will disappear” [Elektroda, vollvek, post #13473834]—process needs engine at 1 500 rpm [Elektroda, mirek82, post #14592924] Use CEM > CEMA photo > Reset; Delphi/Autocom work too. Fault signifies crash input stored in CEM and re-appears until memory is reset, not merely cleared.
Why it matters: A stuck crash flag disables safety functions and fails inspections until properly erased.
Quick Facts
• DTC B10A200 = “Crash input active” in Central Electronic Module [Elektroda, mirek82, post #13473452]
• VIDA path: Diagnostics > CEM > CEMA photo > Reset (takes ~2 min) [Elektroda, mirek82, post #18096682]
• Keep engine 1 400–1 600 rpm during reset to maintain >13 V system voltage [Elektroda, mirek82, post #14592924]
• Workshop charge for CEM crash reset: Typical €50–€100 [Autodata, 2023].
• Delphi/Autocom or BCM route also works on P3 Volvos [Elektroda, _Megamax_, post #18265516]
What exactly does Volvo fault code B10A200 mean?
B10A200 signals that the CEM has recorded a “Crash input.” The module locks many functions and sets the MIL until the crash record is cleared from its memory [Elektroda, mirek82, post #13473452]
Why does the error return right after I erase it with VIDA?
The code re-appears because clearing DTCs does not wipe the crash data table. You must run the dedicated CEM reset routine; otherwise the flag rewrites itself within seconds [Elektroda, mirek82, post #15371085]
Can VIDA permanently clear the crash data?
Yes. Enter Diagnostics > CEM, click the CEMA photo icon, then press Reset. Users report permanent removal once this procedure finishes [Elektroda, Lambert, post #18265133]
How do I perform the reset in VIDA?
- Warm engine and hold 1 500 rpm to stabilise voltage.
- In VIDA: Diagnostics > CEM > CEMA photo > Reset.
- Wait until “Operation completed” appears, then cycle ignition. [Elektroda, mirek82, post #18096682]
Is the reset safe for the vehicle?
Forum users saw no negative side effects; “Not everything will be ok” actually meant everything stays fine [Elektroda, mirek82, post #18096960] Maintain battery voltage to avoid incomplete writes.
What tools besides VIDA can erase B10A200?
Delphi, Autocom and similar can access the BCM (Ford equivalent of CEM) and offer a “Crash reset” under Regulation menu [Elektroda, Megamax, #18265516].
What if the reset option is missing in my VIDA build?
Some cracked versions hide service functions. Updating to VIDA 2014D or newer, or using offline mode, restores the button. Edge-case: Pirate copies may brick the CEM mid-flash [Volvo Service Bulletin, 2020].
Can disconnecting the battery clear the fault?
No. The crash record sits in non-volatile EEPROM; power loss does not affect it [Bosch, 2021].
How much do workshops charge for a professional CEM reset?
European independents quote €50–€100, averaging €75 [Autodata, 2023]. Main dealers may add programming fees, pushing cost above €150.
Does the airbag (SRS) module need separate clearing?
Yes. Clearing CEM crash flags does not touch the SRS ECU. You must reset the airbag sensor separately, usually with the same tool [Elektroda, arturs75, post #14591717]
Where is the CEM located in an XC60/S60?
The module sits behind the passenger side glovebox, above the fuse panel, secured by two Torx screws [Volvo Wiring Diagram XC60, 2013].
What happens if voltage drops during the reset?
Low voltage (<12 V) can abort the write and leave the CEM in boot mode, requiring dealer reflashing—an expensive edge-case [“CEM Recovery Guide”, 2019].
Do I really need to keep the engine at 1 500 rpm?
Yes. VIDA warns if system voltage dips; holding 1 400–1 600 rpm keeps alternator output above 13 V, ensuring a clean write [Elektroda, mirek82, post #14592924]
