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#P1233 FUEL PUMP DRIVER MODULE OFFLINE EBAY REGISTRATION#

If both things still don’t work, technicians will check for power at the fuel pump connector. Next, they reset the inertia switch manually. To check for this code, technicians usually start by checking the fuel pump fuse.

Poor electrical connection in FDPM (Fuel Pump Driver Module) circuit.

Open or shorted FDPM (Fuel Pump Driver Module) harness.

Faulty IFS (Inertia Fuel Shutoff) switch.

IFS (Inertia Fuel Shutoff) switch needs to be reset.

Some of the most common possible causes include: If this fails (the PCM stops receiving the duty signal), then the Error Code P1233 will set.Īs said earlier, this error code could be caused by a lot of factors. With the key on, the FDPM sends duty cycle signal to the PCM continuously through FPM circuit. The PCM (Powertrain Control Module, also known as ECM or engine control module in other vehicles makes) monitors the FPM (Fuel Pump Monitor) circuit from the FDPM (Fuel Pump Driver Module).

#P1233 FUEL PUMP DRIVER MODULE OFFLINE EBAY REGISTRATION#

The most common symptom and usually the only symptom for this error code is the activation of the Check Engine light and the registration of the error code. This could be caused by two primary reasons that interfere with fuel pump startup – the fuel pump relay, or the inertia switch. DefinitionĮrror Code P1233 is set when the fuel pump is not starting up correctly. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model to another. This error code is a generic trouble, meaning it applies to all vehicles equipped with OBD-II system, especially vehicles made since 1996 up to present.

This means the fuel pump is not starting up correctly, which could be caused by problems with the FPDM (fuel pump driver module). Error Code P1233 is defined as Fuel Pump Driver Module Disabled Or Off Line.