LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Engine Control System Self-Diagnostics - 3.1L Engine) >> Diagnostic Tests >> DTC P0230: Fuel Pump Primary Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix, 2002 Chevrolet Malibu, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers 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.
scientia non olet · About LEMON Manuals