The general meaning of the B2511 Code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 1 for Low Coolant Circuit and 1 for TFP Valve Position Switch-Drive Without Drive Ratio. B2511 engine code seems a kind of body problem. The engine system jumps the B2511 code solenoid valve to control oil compression to the engine mechanism that is associated in the valve method to switch valve timing between Low and High. If the engine solenoid faucet has a short circuit, a DTC is stored.