LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System - 4.8L, 5.3L & 6.0L (DTC P0140 Or P0160 To DTC P0449)) >> Diagnostic Information and Procedures >> DTC P0230 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.

The control module enables the fuel pump relay when the ignition switch is turned ON. The control module will disable the fuel pump relay within two seconds unless the control module detects ignition reference pulses. The control module continues to enable the fuel pump relay as long as ignition reference pulses are detected. The control module disables the fuel pump relay within two seconds if ignition reference pulses cease to be detected and the ignition remains ON.

The control module monitors the voltage on the fuel pump relay control circuit. If the control module detects an incorrect voltage on the fuel pump relay control circuit, a fuel pump relay control DTC sets.

scientia non olet · About LEMON Manuals