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Home >> Buick >> 2000 >> Century Custom >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0230: Fuel Pump Control Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step number in the diagnostic procedures.

  1. 4

    This step verifies that the PCM is providing voltage to the fuel pump relay.

  2. 5

    This step tests for an open in the ground circuit to the fuel pump relay.

  3. 6

    This step tests if voltage is constantly being applied to the control circuit of the fuel pump relay.

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