P0232 BMW Fuel Pump Secondary Circuit High
Possible causes
– Blown Fuel Pump fuse
– Open Fuel Pump Monitor Circuit
– Faulty Fuel Pump Relay
– Damaged Engine Control Module (ECM)
– Open Fuel Pump Monitor Circuit
– Faulty Fuel Pump Relay
– Damaged Engine Control Module (ECM)
What about the obd code?
The code will be set if a low voltage on the control circuit of the fuel pump relay is detected by the ECM.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0232 BMW Description
The Engine Control Module (ECM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump. The ECM enables the fuel pump relay as long as the engine is cranking or running, and crankshaft reference pulses are received. If no crankshaft reference pulses are received, the ECM de-energizes the fuel pump relay after 2 seconds. The ECM monitors the voltage on the fuel pump relay control circuit.
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