P1232 LINCOLN – Low Speed Fuel Pump Primary Circuit Malfunction

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P1232 LINCOLN Possible Causes

  • Faulty low-speed fuel pump
  • Faulty fuel pump relay
  • Low-speed fuel pump harness is open or shorted
  • Poor electrical connection in the low-speed fuel pump circuit
  • Damaged Powertrain Control Module (PCM)
 

How to Fix Code P1232 LINCOLN?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

The Powertrain Control Module (PCM) monitors the output of the low-speed fuel pump (LFP) primary circuit from the PCM. The test fails if: when the LFP circuit is activated (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is deactivated, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage passing through the low-speed fuel pump relay coil to the LFP circuit).
 
 

Possible Symptoms

  • Engine light on (or service engine soon warning light)
 

P1232 LINCOLN Meaning

Low Speed Fuel Pump Primary Circuit Failure is the generic description for Lincoln P1232 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information on the Lincoln P1232 OBDII code.

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