P1470 BMW, MINI: LEAKAGE DIAGNOSTIC PUMP ELECTRICAL CONTROL CIRCUIT
POST UPDATED IN June, 2023
P1470 BMW, MINI: LEAKAGE DIAGNOSTIC PUMP ELECTRICAL CONTROL CIRCUIT
The Evaporative Emissions Control System (EVAP) is responsible for reducing the number of exhaust vapors that are expelled into the atmosphere, significantly reducing the levels of pollution in the atmosphere. The EVAP is continuously monitored to ensure that it is functioning properly, paying close attention to any blockages or leaks that may occur.
The function of detecting leaks in the EVAP system is of vital importance since even the slightest leak can lead to the release of vapors that are very harmful to the environment. For this reason, the Leakage Diagnostic Pump (LDP) is used, a component that, by means of engine vacuum, is able to detect EVAP leaks.
This pump has a diaphragm, which changes continuously according to increases in vacuum pressure. Once adequate levels are reached, the pump is deactivated, which in turn prevents excessive vacuum build-up. The PCM (Powertrain Control Module) monitors this process and uses this information to determine if the EVAP has a problem.
P1470 OBDII fault code is a code that in the case of BMW and Mini vehicles, relates to the LDP (Leak Detection Pump). The code indicates that the electrical control circuit for the LDP is malfunctioning.
P1470 OBD2 diagnostic code is set for one of the following reasons:
To troubleshoot the DTC P1470 OBDII code you must do the following: