P1232 Toyota Fuel Pump Speed Primary Circuit Malfunction

P1232 Toyota Fuel Pump Speed Primary Circuit Malfunction

Possible causes
  • Open or shorted low fuel pump (LFP) circuit.
  • Open VPWR to the low speed fuel pump relay.
  • Damaged low speed fuel pump relay.
  • Damaged PCM.

    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1232 Toyota Description

    The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM. The test fails if: the LFP circuit is commanded ON (grounded), and excessive current draw is detected on the LFP circuit; or, the LFP circuit is commanded OFF, and voltage is not detected on the LFP circuit. The PCM expects to detect VPWR voltage through the low speed fuel pump relay coil to the LFP circuit.

    Toyota Vehicle:Toyota Prius,Toyota Celica,Toyota Supra,Toyota Carina,Toyota Camry,Toyota MR2,Toyota Aygo,Toyota 4Runner,Toyota Avalon,Toyota Camry,Toyota Corolla,Toyota FJ Cruiser,Toyota Highlander,Toyota Land Cruiser,Toyota Matrix,Toyota Prius,Toyota RAV4,Toyota Sequoia,Toyota Sienna,Toyota Solara,Toyota Tacoma,Toyota Tundra,Toyota Yaris,
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