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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 3.5L - Troubleshooting & Diagnosis) >> Fuel Pump Electrical Circuit Diagnosis >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different variant/trim than selected.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Battery Voltage - Relay Switch Side 1 2 - -
Fuel Pump Supply Voltage 1 2 3 -
Fuel Pump Relay Control P0230 P0230 P0230 -
Fuel Pump Relay Ground - 2 - -
Fuel Pump Ground - 2 - -
1 Open fuel pump fuse, cranks no start
2 The engine cranks but does not run
3 Fuel pump operates continuously, discharges battery