B2202 is a body control module (B-series) diagnostic trouble code indicating the powertrain control module (PCM) cannot communicate with the Vehicle Inertia Control System (VICS) module or that the VICS module is not fitted/installed in the vehicle. This code is typically set when the PCM attempts to query the VICS module over the CAN bus and receives no response or an invalid response.
The VICS module itself has failed internally and no longer responds to PCM queries. This is the most common cause when the module is actually fitted to the vehicle.
The vehicle was not equipped with a VICS module from the factory, but the PCM expects one. This is common on certain trim levels or model variants.
Damaged wiring, corroded connectors, or loose pins between the PCM and VICS module disrupt the communication circuit.
The VICS module is not receiving proper battery voltage or ground, preventing it from powering up and communicating.
A broader issue on the Controller Area Network (CAN) bus may prevent the VICS module from communicating, though this is less common.
In rare cases, the PCM itself may have a software calibration issue or hardware fault preventing proper module polling. This is the least likely cause and should be investigated only after all other possibilities are ruled out.
No. While some may suggest PCM replacement, this is rarely the cause. B2202 almost always points to the VICS module itself, missing module (not equipped), or wiring/connector issues. The PCM is the last and least likely cause and should only be considered after all other possibilities are exhausted.
This depends on whether the VICS module is actually fitted to your vehicle and what function it controls. If the module is not equipped (common on certain trims), the code may be cosmetic. If the module is supposed to be there and has failed, related safety systems may be compromised. Consult your vehicle's service manual.
VICS varies by manufacturer. It may refer to Variable Inertia Charging System, Vehicle Inertia Control System, or similar. Not all vehicles are equipped. Check your owner's manual or consult a dealer parts department to confirm whether your specific model and trim level should have a VICS module.
Only if the underlying cause is repaired. If the VICS module is genuinely missing/unfitted and your vehicle doesn't require it, the code may not return. If the module failed or has wiring issues, the code will likely return after clearing until the actual fault is repaired.